forked from OSchip/llvm-project
6729 lines
221 KiB
C++
6729 lines
221 KiB
C++
// -*- C++ -*-
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//===--------------------------- random -----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_RANDOM
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#define _LIBCPP_RANDOM
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/*
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random synopsis
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#include <initializer_list>
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namespace std
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{
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// Engines
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template <class UIntType, UIntType a, UIntType c, UIntType m>
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class linear_congruential_engine
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{
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public:
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// types
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typedef UIntType result_type;
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// engine characteristics
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static constexpr result_type multiplier = a;
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static constexpr result_type increment = c;
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static constexpr result_type modulus = m;
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static constexpr result_type min() { return c == 0u ? 1u: 0u;}
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static constexpr result_type max() { return m - 1u;}
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static constexpr result_type default_seed = 1u;
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// constructors and seeding functions
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explicit linear_congruential_engine(result_type s = default_seed);
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template<class Sseq> explicit linear_congruential_engine(Sseq& q);
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void seed(result_type s = default_seed);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()();
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void discard(unsigned long long z);
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};
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template <class UIntType, UIntType a, UIntType c, UIntType m>
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bool
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operator==(const linear_congruential_engine<UIntType, a, c, m>& x,
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const linear_congruential_engine<UIntType, a, c, m>& y);
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template <class UIntType, UIntType a, UIntType c, UIntType m>
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bool
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operator!=(const linear_congruential_engine<UIntType, a, c, m>& x,
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const linear_congruential_engine<UIntType, a, c, m>& y);
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template <class charT, class traits,
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class UIntType, UIntType a, UIntType c, UIntType m>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const linear_congruential_engine<UIntType, a, c, m>& x);
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template <class charT, class traits,
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class UIntType, UIntType a, UIntType c, UIntType m>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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linear_congruential_engine<UIntType, a, c, m>& x);
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template <class UIntType, size_t w, size_t n, size_t m, size_t r,
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UIntType a, size_t u, UIntType d, size_t s,
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UIntType b, size_t t, UIntType c, size_t l, UIntType f>
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class mersenne_twister_engine
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{
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public:
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// types
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typedef UIntType result_type;
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// engine characteristics
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static constexpr size_t word_size = w;
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static constexpr size_t state_size = n;
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static constexpr size_t shift_size = m;
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static constexpr size_t mask_bits = r;
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static constexpr result_type xor_mask = a;
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static constexpr size_t tempering_u = u;
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static constexpr result_type tempering_d = d;
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static constexpr size_t tempering_s = s;
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static constexpr result_type tempering_b = b;
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static constexpr size_t tempering_t = t;
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static constexpr result_type tempering_c = c;
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static constexpr size_t tempering_l = l;
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static constexpr result_type initialization_multiplier = f;
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static constexpr result_type min () { return 0; }
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static constexpr result_type max() { return 2^w - 1; }
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static constexpr result_type default_seed = 5489u;
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// constructors and seeding functions
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explicit mersenne_twister_engine(result_type value = default_seed);
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template<class Sseq> explicit mersenne_twister_engine(Sseq& q);
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void seed(result_type value = default_seed);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()();
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void discard(unsigned long long z);
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};
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template <class UIntType, size_t w, size_t n, size_t m, size_t r,
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UIntType a, size_t u, UIntType d, size_t s,
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UIntType b, size_t t, UIntType c, size_t l, UIntType f>
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bool
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operator==(
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const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x,
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const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& y);
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template <class UIntType, size_t w, size_t n, size_t m, size_t r,
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UIntType a, size_t u, UIntType d, size_t s,
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UIntType b, size_t t, UIntType c, size_t l, UIntType f>
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bool
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operator!=(
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const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x,
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const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& y);
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template <class charT, class traits,
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class UIntType, size_t w, size_t n, size_t m, size_t r,
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UIntType a, size_t u, UIntType d, size_t s,
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UIntType b, size_t t, UIntType c, size_t l, UIntType f>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x);
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template <class charT, class traits,
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class UIntType, size_t w, size_t n, size_t m, size_t r,
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UIntType a, size_t u, UIntType d, size_t s,
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UIntType b, size_t t, UIntType c, size_t l, UIntType f>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x);
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template<class UIntType, size_t w, size_t s, size_t r>
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class subtract_with_carry_engine
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{
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public:
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// types
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typedef UIntType result_type;
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// engine characteristics
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static constexpr size_t word_size = w;
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static constexpr size_t short_lag = s;
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static constexpr size_t long_lag = r;
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static constexpr result_type min() { return 0; }
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static constexpr result_type max() { return m-1; }
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static constexpr result_type default_seed = 19780503u;
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// constructors and seeding functions
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explicit subtract_with_carry_engine(result_type value = default_seed);
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template<class Sseq> explicit subtract_with_carry_engine(Sseq& q);
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void seed(result_type value = default_seed);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()();
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void discard(unsigned long long z);
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};
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template<class UIntType, size_t w, size_t s, size_t r>
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bool
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operator==(
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const subtract_with_carry_engine<UIntType, w, s, r>& x,
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const subtract_with_carry_engine<UIntType, w, s, r>& y);
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template<class UIntType, size_t w, size_t s, size_t r>
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bool
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operator!=(
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const subtract_with_carry_engine<UIntType, w, s, r>& x,
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const subtract_with_carry_engine<UIntType, w, s, r>& y);
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template <class charT, class traits,
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class UIntType, size_t w, size_t s, size_t r>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const subtract_with_carry_engine<UIntType, w, s, r>& x);
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template <class charT, class traits,
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class UIntType, size_t w, size_t s, size_t r>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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subtract_with_carry_engine<UIntType, w, s, r>& x);
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template<class Engine, size_t p, size_t r>
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class discard_block_engine
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{
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public:
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// types
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typedef typename Engine::result_type result_type;
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// engine characteristics
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static constexpr size_t block_size = p;
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static constexpr size_t used_block = r;
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static constexpr result_type min() { return Engine::min(); }
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static constexpr result_type max() { return Engine::max(); }
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// constructors and seeding functions
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discard_block_engine();
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explicit discard_block_engine(const Engine& e);
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explicit discard_block_engine(Engine&& e);
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explicit discard_block_engine(result_type s);
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template<class Sseq> explicit discard_block_engine(Sseq& q);
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void seed();
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void seed(result_type s);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()();
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void discard(unsigned long long z);
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// property functions
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const Engine& base() const noexcept;
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};
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template<class Engine, size_t p, size_t r>
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bool
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operator==(
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const discard_block_engine<Engine, p, r>& x,
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const discard_block_engine<Engine, p, r>& y);
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template<class Engine, size_t p, size_t r>
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bool
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operator!=(
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const discard_block_engine<Engine, p, r>& x,
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const discard_block_engine<Engine, p, r>& y);
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template <class charT, class traits,
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class Engine, size_t p, size_t r>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const discard_block_engine<Engine, p, r>& x);
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template <class charT, class traits,
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class Engine, size_t p, size_t r>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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discard_block_engine<Engine, p, r>& x);
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template<class Engine, size_t w, class UIntType>
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class independent_bits_engine
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{
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public:
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// types
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typedef UIntType result_type;
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// engine characteristics
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static constexpr result_type min() { return 0; }
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static constexpr result_type max() { return 2^w - 1; }
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// constructors and seeding functions
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independent_bits_engine();
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explicit independent_bits_engine(const Engine& e);
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explicit independent_bits_engine(Engine&& e);
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explicit independent_bits_engine(result_type s);
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template<class Sseq> explicit independent_bits_engine(Sseq& q);
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void seed();
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void seed(result_type s);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()(); void discard(unsigned long long z);
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// property functions
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const Engine& base() const noexcept;
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};
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template<class Engine, size_t w, class UIntType>
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bool
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operator==(
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const independent_bits_engine<Engine, w, UIntType>& x,
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const independent_bits_engine<Engine, w, UIntType>& y);
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template<class Engine, size_t w, class UIntType>
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bool
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operator!=(
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const independent_bits_engine<Engine, w, UIntType>& x,
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const independent_bits_engine<Engine, w, UIntType>& y);
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template <class charT, class traits,
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class Engine, size_t w, class UIntType>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const independent_bits_engine<Engine, w, UIntType>& x);
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template <class charT, class traits,
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class Engine, size_t w, class UIntType>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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independent_bits_engine<Engine, w, UIntType>& x);
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template<class Engine, size_t k>
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class shuffle_order_engine
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{
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public:
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// types
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typedef typename Engine::result_type result_type;
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// engine characteristics
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static constexpr size_t table_size = k;
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static constexpr result_type min() { return Engine::min; }
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static constexpr result_type max() { return Engine::max; }
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// constructors and seeding functions
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shuffle_order_engine();
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explicit shuffle_order_engine(const Engine& e);
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explicit shuffle_order_engine(Engine&& e);
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explicit shuffle_order_engine(result_type s);
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template<class Sseq> explicit shuffle_order_engine(Sseq& q);
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void seed();
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void seed(result_type s);
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template<class Sseq> void seed(Sseq& q);
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// generating functions
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result_type operator()();
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void discard(unsigned long long z);
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// property functions
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const Engine& base() const noexcept;
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};
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template<class Engine, size_t k>
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bool
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operator==(
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const shuffle_order_engine<Engine, k>& x,
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const shuffle_order_engine<Engine, k>& y);
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template<class Engine, size_t k>
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bool
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operator!=(
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const shuffle_order_engine<Engine, k>& x,
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const shuffle_order_engine<Engine, k>& y);
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template <class charT, class traits,
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class Engine, size_t k>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const shuffle_order_engine<Engine, k>& x);
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template <class charT, class traits,
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class Engine, size_t k>
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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shuffle_order_engine<Engine, k>& x);
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typedef linear_congruential_engine<uint_fast32_t, 16807, 0, 2147483647>
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minstd_rand0;
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typedef linear_congruential_engine<uint_fast32_t, 48271, 0, 2147483647>
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minstd_rand;
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typedef mersenne_twister_engine<uint_fast32_t, 32, 624, 397, 31,
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0x9908b0df,
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11, 0xffffffff,
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7, 0x9d2c5680,
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15, 0xefc60000,
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18, 1812433253> mt19937;
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typedef mersenne_twister_engine<uint_fast64_t, 64, 312, 156, 31,
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0xb5026f5aa96619e9,
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29, 0x5555555555555555,
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17, 0x71d67fffeda60000,
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37, 0xfff7eee000000000,
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43, 6364136223846793005> mt19937_64;
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typedef subtract_with_carry_engine<uint_fast32_t, 24, 10, 24> ranlux24_base;
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typedef subtract_with_carry_engine<uint_fast64_t, 48, 5, 12> ranlux48_base;
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typedef discard_block_engine<ranlux24_base, 223, 23> ranlux24;
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typedef discard_block_engine<ranlux48_base, 389, 11> ranlux48;
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typedef shuffle_order_engine<minstd_rand0, 256> knuth_b;
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typedef minstd_rand default_random_engine;
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// Generators
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class random_device
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{
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public:
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// types
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typedef unsigned int result_type;
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// generator characteristics
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static constexpr result_type min() { return numeric_limits<result_type>::min(); }
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static constexpr result_type max() { return numeric_limits<result_type>::max(); }
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// constructors
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explicit random_device(const string& token = "/dev/urandom");
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// generating functions
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result_type operator()();
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// property functions
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double entropy() const noexcept;
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// no copy functions
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random_device(const random_device& ) = delete;
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void operator=(const random_device& ) = delete;
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};
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// Utilities
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class seed_seq
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{
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public:
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// types
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typedef uint_least32_t result_type;
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// constructors
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seed_seq();
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template<class T>
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seed_seq(initializer_list<T> il);
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template<class InputIterator>
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seed_seq(InputIterator begin, InputIterator end);
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// generating functions
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template<class RandomAccessIterator>
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void generate(RandomAccessIterator begin, RandomAccessIterator end);
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// property functions
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size_t size() const;
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template<class OutputIterator>
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void param(OutputIterator dest) const;
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// no copy functions
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seed_seq(const seed_seq&) = delete;
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void operator=(const seed_seq& ) = delete;
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};
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template<class RealType, size_t bits, class URNG>
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RealType generate_canonical(URNG& g);
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// Distributions
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template<class IntType = int>
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class uniform_int_distribution
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{
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public:
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// types
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typedef IntType result_type;
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class param_type
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{
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public:
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typedef uniform_int_distribution distribution_type;
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explicit param_type(IntType a = 0,
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IntType b = numeric_limits<IntType>::max());
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result_type a() const;
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result_type b() const;
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friend bool operator==(const param_type& x, const param_type& y);
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friend bool operator!=(const param_type& x, const param_type& y);
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};
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// constructors and reset functions
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explicit uniform_int_distribution(IntType a = 0,
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IntType b = numeric_limits<IntType>::max());
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explicit uniform_int_distribution(const param_type& parm);
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void reset();
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// generating functions
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template<class URNG> result_type operator()(URNG& g);
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template<class URNG> result_type operator()(URNG& g, const param_type& parm);
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// property functions
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result_type a() const;
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result_type b() const;
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param_type param() const;
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void param(const param_type& parm);
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result_type min() const;
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result_type max() const;
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friend bool operator==(const uniform_int_distribution& x,
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const uniform_int_distribution& y);
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friend bool operator!=(const uniform_int_distribution& x,
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const uniform_int_distribution& y);
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template <class charT, class traits>
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friend
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os,
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const uniform_int_distribution& x);
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template <class charT, class traits>
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friend
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basic_istream<charT, traits>&
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operator>>(basic_istream<charT, traits>& is,
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uniform_int_distribution& x);
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};
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template<class RealType = double>
|
|
class uniform_real_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef uniform_real_distribution distribution_type;
|
|
|
|
explicit param_type(RealType a = 0,
|
|
RealType b = 1);
|
|
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit uniform_real_distribution(RealType a = 0.0, RealType b = 1.0);
|
|
explicit uniform_real_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const uniform_real_distribution& x,
|
|
const uniform_real_distribution& y);
|
|
friend bool operator!=(const uniform_real_distribution& x,
|
|
const uniform_real_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const uniform_real_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
uniform_real_distribution& x);
|
|
};
|
|
|
|
class bernoulli_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef bool result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef bernoulli_distribution distribution_type;
|
|
|
|
explicit param_type(double p = 0.5);
|
|
|
|
double p() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit bernoulli_distribution(double p = 0.5);
|
|
explicit bernoulli_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
double p() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const bernoulli_distribution& x,
|
|
const bernoulli_distribution& y);
|
|
friend bool operator!=(const bernoulli_distribution& x,
|
|
const bernoulli_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const bernoulli_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
bernoulli_distribution& x);
|
|
};
|
|
|
|
template<class IntType = int>
|
|
class binomial_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef IntType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef binomial_distribution distribution_type;
|
|
|
|
explicit param_type(IntType t = 1, double p = 0.5);
|
|
|
|
IntType t() const;
|
|
double p() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit binomial_distribution(IntType t = 1, double p = 0.5);
|
|
explicit binomial_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
IntType t() const;
|
|
double p() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const binomial_distribution& x,
|
|
const binomial_distribution& y);
|
|
friend bool operator!=(const binomial_distribution& x,
|
|
const binomial_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const binomial_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
binomial_distribution& x);
|
|
};
|
|
|
|
template<class IntType = int>
|
|
class geometric_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef IntType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef geometric_distribution distribution_type;
|
|
|
|
explicit param_type(double p = 0.5);
|
|
|
|
double p() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit geometric_distribution(double p = 0.5);
|
|
explicit geometric_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
double p() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const geometric_distribution& x,
|
|
const geometric_distribution& y);
|
|
friend bool operator!=(const geometric_distribution& x,
|
|
const geometric_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const geometric_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
geometric_distribution& x);
|
|
};
|
|
|
|
template<class IntType = int>
|
|
class negative_binomial_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef IntType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef negative_binomial_distribution distribution_type;
|
|
|
|
explicit param_type(result_type k = 1, double p = 0.5);
|
|
|
|
result_type k() const;
|
|
double p() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit negative_binomial_distribution(result_type k = 1, double p = 0.5);
|
|
explicit negative_binomial_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type k() const;
|
|
double p() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const negative_binomial_distribution& x,
|
|
const negative_binomial_distribution& y);
|
|
friend bool operator!=(const negative_binomial_distribution& x,
|
|
const negative_binomial_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const negative_binomial_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
negative_binomial_distribution& x);
|
|
};
|
|
|
|
template<class IntType = int>
|
|
class poisson_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef IntType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef poisson_distribution distribution_type;
|
|
|
|
explicit param_type(double mean = 1.0);
|
|
|
|
double mean() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit poisson_distribution(double mean = 1.0);
|
|
explicit poisson_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
double mean() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const poisson_distribution& x,
|
|
const poisson_distribution& y);
|
|
friend bool operator!=(const poisson_distribution& x,
|
|
const poisson_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const poisson_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
poisson_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class exponential_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef exponential_distribution distribution_type;
|
|
|
|
explicit param_type(result_type lambda = 1.0);
|
|
|
|
result_type lambda() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit exponential_distribution(result_type lambda = 1.0);
|
|
explicit exponential_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type lambda() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const exponential_distribution& x,
|
|
const exponential_distribution& y);
|
|
friend bool operator!=(const exponential_distribution& x,
|
|
const exponential_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const exponential_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
exponential_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class gamma_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef gamma_distribution distribution_type;
|
|
|
|
explicit param_type(result_type alpha = 1, result_type beta = 1);
|
|
|
|
result_type alpha() const;
|
|
result_type beta() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit gamma_distribution(result_type alpha = 1, result_type beta = 1);
|
|
explicit gamma_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type alpha() const;
|
|
result_type beta() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const gamma_distribution& x,
|
|
const gamma_distribution& y);
|
|
friend bool operator!=(const gamma_distribution& x,
|
|
const gamma_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const gamma_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
gamma_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class weibull_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef weibull_distribution distribution_type;
|
|
|
|
explicit param_type(result_type alpha = 1, result_type beta = 1);
|
|
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit weibull_distribution(result_type a = 1, result_type b = 1);
|
|
explicit weibull_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const weibull_distribution& x,
|
|
const weibull_distribution& y);
|
|
friend bool operator!=(const weibull_distribution& x,
|
|
const weibull_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const weibull_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
weibull_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class extreme_value_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef extreme_value_distribution distribution_type;
|
|
|
|
explicit param_type(result_type a = 0, result_type b = 1);
|
|
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit extreme_value_distribution(result_type a = 0, result_type b = 1);
|
|
explicit extreme_value_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const extreme_value_distribution& x,
|
|
const extreme_value_distribution& y);
|
|
friend bool operator!=(const extreme_value_distribution& x,
|
|
const extreme_value_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const extreme_value_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
extreme_value_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class normal_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef normal_distribution distribution_type;
|
|
|
|
explicit param_type(result_type mean = 0, result_type stddev = 1);
|
|
|
|
result_type mean() const;
|
|
result_type stddev() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructors and reset functions
|
|
explicit normal_distribution(result_type mean = 0, result_type stddev = 1);
|
|
explicit normal_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type mean() const;
|
|
result_type stddev() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const normal_distribution& x,
|
|
const normal_distribution& y);
|
|
friend bool operator!=(const normal_distribution& x,
|
|
const normal_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const normal_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
normal_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class lognormal_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef lognormal_distribution distribution_type;
|
|
|
|
explicit param_type(result_type m = 0, result_type s = 1);
|
|
|
|
result_type m() const;
|
|
result_type s() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit lognormal_distribution(result_type m = 0, result_type s = 1);
|
|
explicit lognormal_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type m() const;
|
|
result_type s() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const lognormal_distribution& x,
|
|
const lognormal_distribution& y);
|
|
friend bool operator!=(const lognormal_distribution& x,
|
|
const lognormal_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const lognormal_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
lognormal_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class chi_squared_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef chi_squared_distribution distribution_type;
|
|
|
|
explicit param_type(result_type n = 1);
|
|
|
|
result_type n() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit chi_squared_distribution(result_type n = 1);
|
|
explicit chi_squared_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type n() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const chi_squared_distribution& x,
|
|
const chi_squared_distribution& y);
|
|
friend bool operator!=(const chi_squared_distribution& x,
|
|
const chi_squared_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const chi_squared_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
chi_squared_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class cauchy_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef cauchy_distribution distribution_type;
|
|
|
|
explicit param_type(result_type a = 0, result_type b = 1);
|
|
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit cauchy_distribution(result_type a = 0, result_type b = 1);
|
|
explicit cauchy_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type a() const;
|
|
result_type b() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const cauchy_distribution& x,
|
|
const cauchy_distribution& y);
|
|
friend bool operator!=(const cauchy_distribution& x,
|
|
const cauchy_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const cauchy_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
cauchy_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class fisher_f_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef fisher_f_distribution distribution_type;
|
|
|
|
explicit param_type(result_type m = 1, result_type n = 1);
|
|
|
|
result_type m() const;
|
|
result_type n() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit fisher_f_distribution(result_type m = 1, result_type n = 1);
|
|
explicit fisher_f_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type m() const;
|
|
result_type n() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const fisher_f_distribution& x,
|
|
const fisher_f_distribution& y);
|
|
friend bool operator!=(const fisher_f_distribution& x,
|
|
const fisher_f_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const fisher_f_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
fisher_f_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class student_t_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef student_t_distribution distribution_type;
|
|
|
|
explicit param_type(result_type n = 1);
|
|
|
|
result_type n() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
explicit student_t_distribution(result_type n = 1);
|
|
explicit student_t_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
result_type n() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const student_t_distribution& x,
|
|
const student_t_distribution& y);
|
|
friend bool operator!=(const student_t_distribution& x,
|
|
const student_t_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const student_t_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
student_t_distribution& x);
|
|
};
|
|
|
|
template<class IntType = int>
|
|
class discrete_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef IntType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef discrete_distribution distribution_type;
|
|
|
|
param_type();
|
|
template<class InputIterator>
|
|
param_type(InputIterator firstW, InputIterator lastW);
|
|
param_type(initializer_list<double> wl);
|
|
template<class UnaryOperation>
|
|
param_type(size_t nw, double xmin, double xmax, UnaryOperation fw);
|
|
|
|
vector<double> probabilities() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
discrete_distribution();
|
|
template<class InputIterator>
|
|
discrete_distribution(InputIterator firstW, InputIterator lastW);
|
|
discrete_distribution(initializer_list<double> wl);
|
|
template<class UnaryOperation>
|
|
discrete_distribution(size_t nw, double xmin, double xmax,
|
|
UnaryOperation fw);
|
|
explicit discrete_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
vector<double> probabilities() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const discrete_distribution& x,
|
|
const discrete_distribution& y);
|
|
friend bool operator!=(const discrete_distribution& x,
|
|
const discrete_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const discrete_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
discrete_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class piecewise_constant_distribution
|
|
{
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef piecewise_constant_distribution distribution_type;
|
|
|
|
param_type();
|
|
template<class InputIteratorB, class InputIteratorW>
|
|
param_type(InputIteratorB firstB, InputIteratorB lastB,
|
|
InputIteratorW firstW);
|
|
template<class UnaryOperation>
|
|
param_type(initializer_list<result_type> bl, UnaryOperation fw);
|
|
template<class UnaryOperation>
|
|
param_type(size_t nw, result_type xmin, result_type xmax,
|
|
UnaryOperation fw);
|
|
|
|
vector<result_type> intervals() const;
|
|
vector<result_type> densities() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
piecewise_constant_distribution();
|
|
template<class InputIteratorB, class InputIteratorW>
|
|
piecewise_constant_distribution(InputIteratorB firstB,
|
|
InputIteratorB lastB,
|
|
InputIteratorW firstW);
|
|
template<class UnaryOperation>
|
|
piecewise_constant_distribution(initializer_list<result_type> bl,
|
|
UnaryOperation fw);
|
|
template<class UnaryOperation>
|
|
piecewise_constant_distribution(size_t nw, result_type xmin,
|
|
result_type xmax, UnaryOperation fw);
|
|
explicit piecewise_constant_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
vector<result_type> intervals() const;
|
|
vector<result_type> densities() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const piecewise_constant_distribution& x,
|
|
const piecewise_constant_distribution& y);
|
|
friend bool operator!=(const piecewise_constant_distribution& x,
|
|
const piecewise_constant_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const piecewise_constant_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
piecewise_constant_distribution& x);
|
|
};
|
|
|
|
template<class RealType = double>
|
|
class piecewise_linear_distribution
|
|
{
|
|
// types
|
|
typedef RealType result_type;
|
|
|
|
class param_type
|
|
{
|
|
public:
|
|
typedef piecewise_linear_distribution distribution_type;
|
|
|
|
param_type();
|
|
template<class InputIteratorB, class InputIteratorW>
|
|
param_type(InputIteratorB firstB, InputIteratorB lastB,
|
|
InputIteratorW firstW);
|
|
template<class UnaryOperation>
|
|
param_type(initializer_list<result_type> bl, UnaryOperation fw);
|
|
template<class UnaryOperation>
|
|
param_type(size_t nw, result_type xmin, result_type xmax,
|
|
UnaryOperation fw);
|
|
|
|
vector<result_type> intervals() const;
|
|
vector<result_type> densities() const;
|
|
|
|
friend bool operator==(const param_type& x, const param_type& y);
|
|
friend bool operator!=(const param_type& x, const param_type& y);
|
|
};
|
|
|
|
// constructor and reset functions
|
|
piecewise_linear_distribution();
|
|
template<class InputIteratorB, class InputIteratorW>
|
|
piecewise_linear_distribution(InputIteratorB firstB,
|
|
InputIteratorB lastB,
|
|
InputIteratorW firstW);
|
|
|
|
template<class UnaryOperation>
|
|
piecewise_linear_distribution(initializer_list<result_type> bl,
|
|
UnaryOperation fw);
|
|
|
|
template<class UnaryOperation>
|
|
piecewise_linear_distribution(size_t nw, result_type xmin,
|
|
result_type xmax, UnaryOperation fw);
|
|
|
|
explicit piecewise_linear_distribution(const param_type& parm);
|
|
void reset();
|
|
|
|
// generating functions
|
|
template<class URNG> result_type operator()(URNG& g);
|
|
template<class URNG> result_type operator()(URNG& g, const param_type& parm);
|
|
|
|
// property functions
|
|
vector<result_type> intervals() const;
|
|
vector<result_type> densities() const;
|
|
|
|
param_type param() const;
|
|
void param(const param_type& parm);
|
|
|
|
result_type min() const;
|
|
result_type max() const;
|
|
|
|
friend bool operator==(const piecewise_linear_distribution& x,
|
|
const piecewise_linear_distribution& y);
|
|
friend bool operator!=(const piecewise_linear_distribution& x,
|
|
const piecewise_linear_distribution& y);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_ostream<charT, traits>&
|
|
operator<<(basic_ostream<charT, traits>& os,
|
|
const piecewise_linear_distribution& x);
|
|
|
|
template <class charT, class traits>
|
|
friend
|
|
basic_istream<charT, traits>&
|
|
operator>>(basic_istream<charT, traits>& is,
|
|
piecewise_linear_distribution& x);
|
|
};
|
|
|
|
} // std
|
|
*/
|
|
|
|
#include <__config>
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
#include <cmath>
|
|
#include <type_traits>
|
|
#include <initializer_list>
|
|
#include <limits>
|
|
#include <algorithm>
|
|
#include <numeric>
|
|
#include <vector>
|
|
#include <string>
|
|
#include <istream>
|
|
#include <ostream>
|
|
|
|
#include <__undef_min_max>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
// __is_seed_sequence
|
|
|
|
template <class _Sseq, class _Engine>
|
|
struct __is_seed_sequence
|
|
{
|
|
static _LIBCPP_CONSTEXPR const bool value =
|
|
!is_convertible<_Sseq, typename _Engine::result_type>::value &&
|
|
!is_same<typename remove_cv<_Sseq>::type, _Engine>::value;
|
|
};
|
|
|
|
// linear_congruential_engine
|
|
|
|
template <unsigned long long __a, unsigned long long __c,
|
|
unsigned long long __m, unsigned long long _Mp,
|
|
bool _MightOverflow = (__a != 0 && __m != 0 && __m-1 > (_Mp-__c)/__a)>
|
|
struct __lce_ta;
|
|
|
|
// 64
|
|
|
|
template <unsigned long long __a, unsigned long long __c, unsigned long long __m>
|
|
struct __lce_ta<__a, __c, __m, (unsigned long long)(~0), true>
|
|
{
|
|
typedef unsigned long long result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
// Schrage's algorithm
|
|
const result_type __q = __m / __a;
|
|
const result_type __r = __m % __a;
|
|
const result_type __t0 = __a * (__x % __q);
|
|
const result_type __t1 = __r * (__x / __q);
|
|
__x = __t0 + (__t0 < __t1) * __m - __t1;
|
|
__x += __c - (__x >= __m - __c) * __m;
|
|
return __x;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long __a, unsigned long long __m>
|
|
struct __lce_ta<__a, 0, __m, (unsigned long long)(~0), true>
|
|
{
|
|
typedef unsigned long long result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
// Schrage's algorithm
|
|
const result_type __q = __m / __a;
|
|
const result_type __r = __m % __a;
|
|
const result_type __t0 = __a * (__x % __q);
|
|
const result_type __t1 = __r * (__x / __q);
|
|
__x = __t0 + (__t0 < __t1) * __m - __t1;
|
|
return __x;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long __a, unsigned long long __c, unsigned long long __m>
|
|
struct __lce_ta<__a, __c, __m, (unsigned long long)(~0), false>
|
|
{
|
|
typedef unsigned long long result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
return (__a * __x + __c) % __m;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long __a, unsigned long long __c>
|
|
struct __lce_ta<__a, __c, 0, (unsigned long long)(~0), false>
|
|
{
|
|
typedef unsigned long long result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
return __a * __x + __c;
|
|
}
|
|
};
|
|
|
|
// 32
|
|
|
|
template <unsigned long long _Ap, unsigned long long _Cp, unsigned long long _Mp>
|
|
struct __lce_ta<_Ap, _Cp, _Mp, unsigned(~0), true>
|
|
{
|
|
typedef unsigned result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
const result_type __a = static_cast<result_type>(_Ap);
|
|
const result_type __c = static_cast<result_type>(_Cp);
|
|
const result_type __m = static_cast<result_type>(_Mp);
|
|
// Schrage's algorithm
|
|
const result_type __q = __m / __a;
|
|
const result_type __r = __m % __a;
|
|
const result_type __t0 = __a * (__x % __q);
|
|
const result_type __t1 = __r * (__x / __q);
|
|
__x = __t0 + (__t0 < __t1) * __m - __t1;
|
|
__x += __c - (__x >= __m - __c) * __m;
|
|
return __x;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long _Ap, unsigned long long _Mp>
|
|
struct __lce_ta<_Ap, 0, _Mp, unsigned(~0), true>
|
|
{
|
|
typedef unsigned result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
const result_type __a = static_cast<result_type>(_Ap);
|
|
const result_type __m = static_cast<result_type>(_Mp);
|
|
// Schrage's algorithm
|
|
const result_type __q = __m / __a;
|
|
const result_type __r = __m % __a;
|
|
const result_type __t0 = __a * (__x % __q);
|
|
const result_type __t1 = __r * (__x / __q);
|
|
__x = __t0 + (__t0 < __t1) * __m - __t1;
|
|
return __x;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long _Ap, unsigned long long _Cp, unsigned long long _Mp>
|
|
struct __lce_ta<_Ap, _Cp, _Mp, unsigned(~0), false>
|
|
{
|
|
typedef unsigned result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
const result_type __a = static_cast<result_type>(_Ap);
|
|
const result_type __c = static_cast<result_type>(_Cp);
|
|
const result_type __m = static_cast<result_type>(_Mp);
|
|
return (__a * __x + __c) % __m;
|
|
}
|
|
};
|
|
|
|
template <unsigned long long _Ap, unsigned long long _Cp>
|
|
struct __lce_ta<_Ap, _Cp, 0, unsigned(~0), false>
|
|
{
|
|
typedef unsigned result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
const result_type __a = static_cast<result_type>(_Ap);
|
|
const result_type __c = static_cast<result_type>(_Cp);
|
|
return __a * __x + __c;
|
|
}
|
|
};
|
|
|
|
// 16
|
|
|
|
template <unsigned long long __a, unsigned long long __c, unsigned long long __m, bool __b>
|
|
struct __lce_ta<__a, __c, __m, (unsigned short)(~0), __b>
|
|
{
|
|
typedef unsigned short result_type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type next(result_type __x)
|
|
{
|
|
return static_cast<result_type>(__lce_ta<__a, __c, __m, unsigned(~0)>::next(__x));
|
|
}
|
|
};
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
class _LIBCPP_TYPE_VIS_ONLY linear_congruential_engine;
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Up, _Up _Ap, _Up _Cp, _Up _Np>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const linear_congruential_engine<_Up, _Ap, _Cp, _Np>&);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Up, _Up _Ap, _Up _Cp, _Up _Np>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
linear_congruential_engine<_Up, _Ap, _Cp, _Np>& __x);
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
class _LIBCPP_TYPE_VIS_ONLY linear_congruential_engine
|
|
{
|
|
public:
|
|
// types
|
|
typedef _UIntType result_type;
|
|
|
|
private:
|
|
result_type __x_;
|
|
|
|
static _LIBCPP_CONSTEXPR const result_type _Mp = result_type(~0);
|
|
|
|
static_assert(__m == 0 || __a < __m, "linear_congruential_engine invalid parameters");
|
|
static_assert(__m == 0 || __c < __m, "linear_congruential_engine invalid parameters");
|
|
public:
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = __c == 0u ? 1u: 0u;
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = __m - 1u;
|
|
static_assert(_Min < _Max, "linear_congruential_engine invalid parameters");
|
|
|
|
// engine characteristics
|
|
static _LIBCPP_CONSTEXPR const result_type multiplier = __a;
|
|
static _LIBCPP_CONSTEXPR const result_type increment = __c;
|
|
static _LIBCPP_CONSTEXPR const result_type modulus = __m;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() {return _Min;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() {return _Max;}
|
|
static _LIBCPP_CONSTEXPR const result_type default_seed = 1u;
|
|
|
|
// constructors and seeding functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit linear_congruential_engine(result_type __s = default_seed)
|
|
{seed(__s);}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit linear_congruential_engine(_Sseq& __q,
|
|
typename enable_if<__is_seed_sequence<_Sseq, linear_congruential_engine>::value>::type* = 0)
|
|
{seed(__q);}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(result_type __s = default_seed)
|
|
{seed(integral_constant<bool, __m == 0>(),
|
|
integral_constant<bool, __c == 0>(), __s);}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__is_seed_sequence<_Sseq, linear_congruential_engine>::value,
|
|
void
|
|
>::type
|
|
seed(_Sseq& __q)
|
|
{__seed(__q, integral_constant<unsigned,
|
|
1 + (__m == 0 ? (sizeof(result_type) * __CHAR_BIT__ - 1)/32
|
|
: (__m > 0x100000000ull))>());}
|
|
|
|
// generating functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()()
|
|
{return __x_ = static_cast<result_type>(__lce_ta<__a, __c, __m, _Mp>::next(__x_));}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const linear_congruential_engine& __x,
|
|
const linear_congruential_engine& __y)
|
|
{return __x.__x_ == __y.__x_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const linear_congruential_engine& __x,
|
|
const linear_congruential_engine& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(true_type, true_type, result_type __s) {__x_ = __s == 0 ? 1 : __s;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(true_type, false_type, result_type __s) {__x_ = __s;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(false_type, true_type, result_type __s) {__x_ = __s % __m == 0 ?
|
|
1 : __s % __m;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(false_type, false_type, result_type __s) {__x_ = __s % __m;}
|
|
|
|
template<class _Sseq>
|
|
void __seed(_Sseq& __q, integral_constant<unsigned, 1>);
|
|
template<class _Sseq>
|
|
void __seed(_Sseq& __q, integral_constant<unsigned, 2>);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Up, _Up _Ap, _Up _Cp, _Up _Np>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const linear_congruential_engine<_Up, _Ap, _Cp, _Np>&);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Up, _Up _Ap, _Up _Cp, _Up _Np>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
linear_congruential_engine<_Up, _Ap, _Cp, _Np>& __x);
|
|
};
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
_LIBCPP_CONSTEXPR const typename linear_congruential_engine<_UIntType, __a, __c, __m>::result_type
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::multiplier;
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
_LIBCPP_CONSTEXPR const typename linear_congruential_engine<_UIntType, __a, __c, __m>::result_type
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::increment;
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
_LIBCPP_CONSTEXPR const typename linear_congruential_engine<_UIntType, __a, __c, __m>::result_type
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::modulus;
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
_LIBCPP_CONSTEXPR const typename linear_congruential_engine<_UIntType, __a, __c, __m>::result_type
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::default_seed;
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
template<class _Sseq>
|
|
void
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::__seed(_Sseq& __q,
|
|
integral_constant<unsigned, 1>)
|
|
{
|
|
const unsigned __k = 1;
|
|
uint32_t __ar[__k+3];
|
|
__q.generate(__ar, __ar + __k + 3);
|
|
result_type __s = static_cast<result_type>(__ar[3] % __m);
|
|
__x_ = __c == 0 && __s == 0 ? result_type(1) : __s;
|
|
}
|
|
|
|
template <class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
template<class _Sseq>
|
|
void
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>::__seed(_Sseq& __q,
|
|
integral_constant<unsigned, 2>)
|
|
{
|
|
const unsigned __k = 2;
|
|
uint32_t __ar[__k+3];
|
|
__q.generate(__ar, __ar + __k + 3);
|
|
result_type __s = static_cast<result_type>((__ar[3] +
|
|
((uint64_t)__ar[4] << 32)) % __m);
|
|
__x_ = __c == 0 && __s == 0 ? result_type(1) : __s;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const linear_congruential_engine<_UIntType, __a, __c, __m>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
__os.fill(__os.widen(' '));
|
|
return __os << __x.__x_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
linear_congruential_engine<_UIntType, __a, __c, __m>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
_UIntType __t;
|
|
__is >> __t;
|
|
if (!__is.fail())
|
|
__x.__x_ = __t;
|
|
return __is;
|
|
}
|
|
|
|
typedef linear_congruential_engine<uint_fast32_t, 16807, 0, 2147483647>
|
|
minstd_rand0;
|
|
typedef linear_congruential_engine<uint_fast32_t, 48271, 0, 2147483647>
|
|
minstd_rand;
|
|
typedef minstd_rand default_random_engine;
|
|
// mersenne_twister_engine
|
|
|
|
template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
|
|
_UIntType __a, size_t __u, _UIntType __d, size_t __s,
|
|
_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
|
class _LIBCPP_TYPE_VIS_ONLY mersenne_twister_engine;
|
|
|
|
template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
bool
|
|
operator==(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __y);
|
|
|
|
template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x);
|
|
|
|
template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
|
|
_UIntType __a, size_t __u, _UIntType __d, size_t __s,
|
|
_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
|
class _LIBCPP_TYPE_VIS_ONLY mersenne_twister_engine
|
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{
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public:
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// types
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typedef _UIntType result_type;
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private:
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result_type __x_[__n];
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size_t __i_;
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static_assert( 0 < __m, "mersenne_twister_engine invalid parameters");
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static_assert(__m <= __n, "mersenne_twister_engine invalid parameters");
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static _LIBCPP_CONSTEXPR const result_type _Dt = numeric_limits<result_type>::digits;
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static_assert(__w <= _Dt, "mersenne_twister_engine invalid parameters");
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static_assert( 2 <= __w, "mersenne_twister_engine invalid parameters");
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static_assert(__r <= __w, "mersenne_twister_engine invalid parameters");
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static_assert(__u <= __w, "mersenne_twister_engine invalid parameters");
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static_assert(__s <= __w, "mersenne_twister_engine invalid parameters");
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static_assert(__t <= __w, "mersenne_twister_engine invalid parameters");
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static_assert(__l <= __w, "mersenne_twister_engine invalid parameters");
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public:
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static _LIBCPP_CONSTEXPR const result_type _Min = 0;
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static _LIBCPP_CONSTEXPR const result_type _Max = __w == _Dt ? result_type(~0) :
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(result_type(1) << __w) - result_type(1);
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static_assert(_Min < _Max, "mersenne_twister_engine invalid parameters");
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static_assert(__a <= _Max, "mersenne_twister_engine invalid parameters");
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static_assert(__b <= _Max, "mersenne_twister_engine invalid parameters");
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static_assert(__c <= _Max, "mersenne_twister_engine invalid parameters");
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static_assert(__d <= _Max, "mersenne_twister_engine invalid parameters");
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static_assert(__f <= _Max, "mersenne_twister_engine invalid parameters");
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// engine characteristics
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static _LIBCPP_CONSTEXPR const size_t word_size = __w;
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static _LIBCPP_CONSTEXPR const size_t state_size = __n;
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static _LIBCPP_CONSTEXPR const size_t shift_size = __m;
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static _LIBCPP_CONSTEXPR const size_t mask_bits = __r;
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static _LIBCPP_CONSTEXPR const result_type xor_mask = __a;
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static _LIBCPP_CONSTEXPR const size_t tempering_u = __u;
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static _LIBCPP_CONSTEXPR const result_type tempering_d = __d;
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static _LIBCPP_CONSTEXPR const size_t tempering_s = __s;
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static _LIBCPP_CONSTEXPR const result_type tempering_b = __b;
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static _LIBCPP_CONSTEXPR const size_t tempering_t = __t;
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static _LIBCPP_CONSTEXPR const result_type tempering_c = __c;
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static _LIBCPP_CONSTEXPR const size_t tempering_l = __l;
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static _LIBCPP_CONSTEXPR const result_type initialization_multiplier = __f;
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_LIBCPP_INLINE_VISIBILITY
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static _LIBCPP_CONSTEXPR result_type min() { return _Min; }
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_LIBCPP_INLINE_VISIBILITY
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static _LIBCPP_CONSTEXPR result_type max() { return _Max; }
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static _LIBCPP_CONSTEXPR const result_type default_seed = 5489u;
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// constructors and seeding functions
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_LIBCPP_INLINE_VISIBILITY
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explicit mersenne_twister_engine(result_type __sd = default_seed)
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{seed(__sd);}
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template<class _Sseq>
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_LIBCPP_INLINE_VISIBILITY
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explicit mersenne_twister_engine(_Sseq& __q,
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typename enable_if<__is_seed_sequence<_Sseq, mersenne_twister_engine>::value>::type* = 0)
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{seed(__q);}
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void seed(result_type __sd = default_seed);
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template<class _Sseq>
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_LIBCPP_INLINE_VISIBILITY
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typename enable_if
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<
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__is_seed_sequence<_Sseq, mersenne_twister_engine>::value,
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void
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>::type
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seed(_Sseq& __q)
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{__seed(__q, integral_constant<unsigned, 1 + (__w - 1) / 32>());}
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// generating functions
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result_type operator()();
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_LIBCPP_INLINE_VISIBILITY
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void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
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template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
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_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
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_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
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friend
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bool
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operator==(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
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const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __y);
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template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
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_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
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_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
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friend
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bool
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operator!=(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
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const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __y);
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template <class _CharT, class _Traits,
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class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
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_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
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_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
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friend
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basic_ostream<_CharT, _Traits>&
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operator<<(basic_ostream<_CharT, _Traits>& __os,
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const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __x);
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template <class _CharT, class _Traits,
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class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
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_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
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_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
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friend
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basic_istream<_CharT, _Traits>&
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operator>>(basic_istream<_CharT, _Traits>& __is,
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mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
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_Bp, _Tp, _Cp, _Lp, _Fp>& __x);
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private:
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template<class _Sseq>
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void __seed(_Sseq& __q, integral_constant<unsigned, 1>);
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template<class _Sseq>
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void __seed(_Sseq& __q, integral_constant<unsigned, 2>);
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template <size_t __count>
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_LIBCPP_INLINE_VISIBILITY
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static
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typename enable_if
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<
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__count < __w,
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result_type
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>::type
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__lshift(result_type __x) {return (__x << __count) & _Max;}
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template <size_t __count>
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_LIBCPP_INLINE_VISIBILITY
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static
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typename enable_if
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<
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(__count >= __w),
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result_type
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>::type
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__lshift(result_type) {return result_type(0);}
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template <size_t __count>
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_LIBCPP_INLINE_VISIBILITY
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static
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typename enable_if
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<
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__count < _Dt,
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result_type
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>::type
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__rshift(result_type __x) {return __x >> __count;}
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template <size_t __count>
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_LIBCPP_INLINE_VISIBILITY
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static
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typename enable_if
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<
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(__count >= _Dt),
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result_type
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>::type
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__rshift(result_type) {return result_type(0);}
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};
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::word_size;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::state_size;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::shift_size;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::mask_bits;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::xor_mask;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_u;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_d;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_s;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_b;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_t;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_c;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const size_t
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::tempering_l;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::initialization_multiplier;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
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_LIBCPP_CONSTEXPR const typename mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::result_type
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>::default_seed;
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template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
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void
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b,
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__t, __c, __l, __f>::seed(result_type __sd)
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{ // __w >= 2
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__x_[0] = __sd & _Max;
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for (size_t __i = 1; __i < __n; ++__i)
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__x_[__i] = (__f * (__x_[__i-1] ^ __rshift<__w - 2>(__x_[__i-1])) + __i) & _Max;
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|
__i_ = 0;
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}
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|
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|
template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
|
|
_UIntType __a, size_t __u, _UIntType __d, size_t __s,
|
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_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
|
template<class _Sseq>
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|
void
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|
mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b,
|
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__t, __c, __l, __f>::__seed(_Sseq& __q, integral_constant<unsigned, 1>)
|
|
{
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|
const unsigned __k = 1;
|
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uint32_t __ar[__n * __k];
|
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__q.generate(__ar, __ar + __n * __k);
|
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for (size_t __i = 0; __i < __n; ++__i)
|
|
__x_[__i] = static_cast<result_type>(__ar[__i] & _Max);
|
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const result_type __mask = __r == _Dt ? result_type(~0) :
|
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(result_type(1) << __r) - result_type(1);
|
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__i_ = 0;
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if ((__x_[0] & ~__mask) == 0)
|
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{
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|
for (size_t __i = 1; __i < __n; ++__i)
|
|
if (__x_[__i] != 0)
|
|
return;
|
|
__x_[0] = _Max;
|
|
}
|
|
}
|
|
|
|
template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
|
|
_UIntType __a, size_t __u, _UIntType __d, size_t __s,
|
|
_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
|
template<class _Sseq>
|
|
void
|
|
mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b,
|
|
__t, __c, __l, __f>::__seed(_Sseq& __q, integral_constant<unsigned, 2>)
|
|
{
|
|
const unsigned __k = 2;
|
|
uint32_t __ar[__n * __k];
|
|
__q.generate(__ar, __ar + __n * __k);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__x_[__i] = static_cast<result_type>(
|
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(__ar[2 * __i] + ((uint64_t)__ar[2 * __i + 1] << 32)) & _Max);
|
|
const result_type __mask = __r == _Dt ? result_type(~0) :
|
|
(result_type(1) << __r) - result_type(1);
|
|
__i_ = 0;
|
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if ((__x_[0] & ~__mask) == 0)
|
|
{
|
|
for (size_t __i = 1; __i < __n; ++__i)
|
|
if (__x_[__i] != 0)
|
|
return;
|
|
__x_[0] = _Max;
|
|
}
|
|
}
|
|
|
|
template <class _UIntType, size_t __w, size_t __n, size_t __m, size_t __r,
|
|
_UIntType __a, size_t __u, _UIntType __d, size_t __s,
|
|
_UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
|
|
_UIntType
|
|
mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b,
|
|
__t, __c, __l, __f>::operator()()
|
|
{
|
|
const size_t __j = (__i_ + 1) % __n;
|
|
const result_type __mask = __r == _Dt ? result_type(~0) :
|
|
(result_type(1) << __r) - result_type(1);
|
|
const result_type _Yp = (__x_[__i_] & ~__mask) | (__x_[__j] & __mask);
|
|
const size_t __k = (__i_ + __m) % __n;
|
|
__x_[__i_] = __x_[__k] ^ __rshift<1>(_Yp) ^ (__a * (_Yp & 1));
|
|
result_type __z = __x_[__i_] ^ (__rshift<__u>(__x_[__i_]) & __d);
|
|
__i_ = __j;
|
|
__z ^= __lshift<__s>(__z) & __b;
|
|
__z ^= __lshift<__t>(__z) & __c;
|
|
return __z ^ __rshift<__l>(__z);
|
|
}
|
|
|
|
template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
bool
|
|
operator==(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __y)
|
|
{
|
|
if (__x.__i_ == __y.__i_)
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + _Np, __y.__x_);
|
|
if (__x.__i_ == 0 || __y.__i_ == 0)
|
|
{
|
|
size_t __j = _VSTD::min(_Np - __x.__i_, _Np - __y.__i_);
|
|
if (!_VSTD::equal(__x.__x_ + __x.__i_, __x.__x_ + __x.__i_ + __j,
|
|
__y.__x_ + __y.__i_))
|
|
return false;
|
|
if (__x.__i_ == 0)
|
|
return _VSTD::equal(__x.__x_ + __j, __x.__x_ + _Np, __y.__x_);
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + (_Np - __j), __y.__x_ + __j);
|
|
}
|
|
if (__x.__i_ < __y.__i_)
|
|
{
|
|
size_t __j = _Np - __y.__i_;
|
|
if (!_VSTD::equal(__x.__x_ + __x.__i_, __x.__x_ + (__x.__i_ + __j),
|
|
__y.__x_ + __y.__i_))
|
|
return false;
|
|
if (!_VSTD::equal(__x.__x_ + (__x.__i_ + __j), __x.__x_ + _Np,
|
|
__y.__x_))
|
|
return false;
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + __x.__i_,
|
|
__y.__x_ + (_Np - (__x.__i_ + __j)));
|
|
}
|
|
size_t __j = _Np - __x.__i_;
|
|
if (!_VSTD::equal(__y.__x_ + __y.__i_, __y.__x_ + (__y.__i_ + __j),
|
|
__x.__x_ + __x.__i_))
|
|
return false;
|
|
if (!_VSTD::equal(__y.__x_ + (__y.__i_ + __j), __y.__x_ + _Np,
|
|
__x.__x_))
|
|
return false;
|
|
return _VSTD::equal(__y.__x_, __y.__x_ + __y.__i_,
|
|
__x.__x_ + (_Np - (__y.__i_ + __j)));
|
|
}
|
|
|
|
template <class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.__x_[__x.__i_];
|
|
for (size_t __j = __x.__i_ + 1; __j < _Np; ++__j)
|
|
__os << __sp << __x.__x_[__j];
|
|
for (size_t __j = 0; __j < __x.__i_; ++__j)
|
|
__os << __sp << __x.__x_[__j];
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Np, size_t _Mp, size_t _Rp,
|
|
_UI _Ap, size_t _Up, _UI _Dp, size_t _Sp,
|
|
_UI _Bp, size_t _Tp, _UI _Cp, size_t _Lp, _UI _Fp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
mersenne_twister_engine<_UI, _Wp, _Np, _Mp, _Rp, _Ap, _Up, _Dp, _Sp,
|
|
_Bp, _Tp, _Cp, _Lp, _Fp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
_UI __t[_Np];
|
|
for (size_t __i = 0; __i < _Np; ++__i)
|
|
__is >> __t[__i];
|
|
if (!__is.fail())
|
|
{
|
|
for (size_t __i = 0; __i < _Np; ++__i)
|
|
__x.__x_[__i] = __t[__i];
|
|
__x.__i_ = 0;
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
typedef mersenne_twister_engine<uint_fast32_t, 32, 624, 397, 31,
|
|
0x9908b0df, 11, 0xffffffff,
|
|
7, 0x9d2c5680,
|
|
15, 0xefc60000,
|
|
18, 1812433253> mt19937;
|
|
typedef mersenne_twister_engine<uint_fast64_t, 64, 312, 156, 31,
|
|
0xb5026f5aa96619e9ULL, 29, 0x5555555555555555ULL,
|
|
17, 0x71d67fffeda60000ULL,
|
|
37, 0xfff7eee000000000ULL,
|
|
43, 6364136223846793005ULL> mt19937_64;
|
|
|
|
// subtract_with_carry_engine
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
class _LIBCPP_TYPE_VIS_ONLY subtract_with_carry_engine;
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
bool
|
|
operator==(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y);
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x);
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
class _LIBCPP_TYPE_VIS_ONLY subtract_with_carry_engine
|
|
{
|
|
public:
|
|
// types
|
|
typedef _UIntType result_type;
|
|
|
|
private:
|
|
result_type __x_[__r];
|
|
result_type __c_;
|
|
size_t __i_;
|
|
|
|
static _LIBCPP_CONSTEXPR const result_type _Dt = numeric_limits<result_type>::digits;
|
|
static_assert( 0 < __w, "subtract_with_carry_engine invalid parameters");
|
|
static_assert(__w <= _Dt, "subtract_with_carry_engine invalid parameters");
|
|
static_assert( 0 < __s, "subtract_with_carry_engine invalid parameters");
|
|
static_assert(__s < __r, "subtract_with_carry_engine invalid parameters");
|
|
public:
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = 0;
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = __w == _Dt ? result_type(~0) :
|
|
(result_type(1) << __w) - result_type(1);
|
|
static_assert(_Min < _Max, "subtract_with_carry_engine invalid parameters");
|
|
|
|
// engine characteristics
|
|
static _LIBCPP_CONSTEXPR const size_t word_size = __w;
|
|
static _LIBCPP_CONSTEXPR const size_t short_lag = __s;
|
|
static _LIBCPP_CONSTEXPR const size_t long_lag = __r;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() { return _Min; }
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() { return _Max; }
|
|
static _LIBCPP_CONSTEXPR const result_type default_seed = 19780503u;
|
|
|
|
// constructors and seeding functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit subtract_with_carry_engine(result_type __sd = default_seed)
|
|
{seed(__sd);}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit subtract_with_carry_engine(_Sseq& __q,
|
|
typename enable_if<__is_seed_sequence<_Sseq, subtract_with_carry_engine>::value>::type* = 0)
|
|
{seed(__q);}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(result_type __sd = default_seed)
|
|
{seed(__sd, integral_constant<unsigned, 1 + (__w - 1) / 32>());}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__is_seed_sequence<_Sseq, subtract_with_carry_engine>::value,
|
|
void
|
|
>::type
|
|
seed(_Sseq& __q)
|
|
{__seed(__q, integral_constant<unsigned, 1 + (__w - 1) / 32>());}
|
|
|
|
// generating functions
|
|
result_type operator()();
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
friend
|
|
bool
|
|
operator==(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y);
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
friend
|
|
bool
|
|
operator!=(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x);
|
|
|
|
private:
|
|
|
|
void seed(result_type __sd, integral_constant<unsigned, 1>);
|
|
void seed(result_type __sd, integral_constant<unsigned, 2>);
|
|
template<class _Sseq>
|
|
void __seed(_Sseq& __q, integral_constant<unsigned, 1>);
|
|
template<class _Sseq>
|
|
void __seed(_Sseq& __q, integral_constant<unsigned, 2>);
|
|
};
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
_LIBCPP_CONSTEXPR const size_t subtract_with_carry_engine<_UIntType, __w, __s, __r>::word_size;
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
_LIBCPP_CONSTEXPR const size_t subtract_with_carry_engine<_UIntType, __w, __s, __r>::short_lag;
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
_LIBCPP_CONSTEXPR const size_t subtract_with_carry_engine<_UIntType, __w, __s, __r>::long_lag;
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
_LIBCPP_CONSTEXPR const typename subtract_with_carry_engine<_UIntType, __w, __s, __r>::result_type
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::default_seed;
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
void
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::seed(result_type __sd,
|
|
integral_constant<unsigned, 1>)
|
|
{
|
|
linear_congruential_engine<result_type, 40014u, 0u, 2147483563u>
|
|
__e(__sd == 0u ? default_seed : __sd);
|
|
for (size_t __i = 0; __i < __r; ++__i)
|
|
__x_[__i] = static_cast<result_type>(__e() & _Max);
|
|
__c_ = __x_[__r-1] == 0;
|
|
__i_ = 0;
|
|
}
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
void
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::seed(result_type __sd,
|
|
integral_constant<unsigned, 2>)
|
|
{
|
|
linear_congruential_engine<result_type, 40014u, 0u, 2147483563u>
|
|
__e(__sd == 0u ? default_seed : __sd);
|
|
for (size_t __i = 0; __i < __r; ++__i)
|
|
{
|
|
result_type __e0 = __e();
|
|
__x_[__i] = static_cast<result_type>(
|
|
(__e0 + ((uint64_t)__e() << 32)) & _Max);
|
|
}
|
|
__c_ = __x_[__r-1] == 0;
|
|
__i_ = 0;
|
|
}
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
template<class _Sseq>
|
|
void
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::__seed(_Sseq& __q,
|
|
integral_constant<unsigned, 1>)
|
|
{
|
|
const unsigned __k = 1;
|
|
uint32_t __ar[__r * __k];
|
|
__q.generate(__ar, __ar + __r * __k);
|
|
for (size_t __i = 0; __i < __r; ++__i)
|
|
__x_[__i] = static_cast<result_type>(__ar[__i] & _Max);
|
|
__c_ = __x_[__r-1] == 0;
|
|
__i_ = 0;
|
|
}
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
template<class _Sseq>
|
|
void
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::__seed(_Sseq& __q,
|
|
integral_constant<unsigned, 2>)
|
|
{
|
|
const unsigned __k = 2;
|
|
uint32_t __ar[__r * __k];
|
|
__q.generate(__ar, __ar + __r * __k);
|
|
for (size_t __i = 0; __i < __r; ++__i)
|
|
__x_[__i] = static_cast<result_type>(
|
|
(__ar[2 * __i] + ((uint64_t)__ar[2 * __i + 1] << 32)) & _Max);
|
|
__c_ = __x_[__r-1] == 0;
|
|
__i_ = 0;
|
|
}
|
|
|
|
template<class _UIntType, size_t __w, size_t __s, size_t __r>
|
|
_UIntType
|
|
subtract_with_carry_engine<_UIntType, __w, __s, __r>::operator()()
|
|
{
|
|
const result_type& __xs = __x_[(__i_ + (__r - __s)) % __r];
|
|
result_type& __xr = __x_[__i_];
|
|
result_type __new_c = __c_ == 0 ? __xs < __xr : __xs != 0 ? __xs <= __xr : 1;
|
|
__xr = (__xs - __xr - __c_) & _Max;
|
|
__c_ = __new_c;
|
|
__i_ = (__i_ + 1) % __r;
|
|
return __xr;
|
|
}
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
bool
|
|
operator==(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y)
|
|
{
|
|
if (__x.__c_ != __y.__c_)
|
|
return false;
|
|
if (__x.__i_ == __y.__i_)
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + _Rp, __y.__x_);
|
|
if (__x.__i_ == 0 || __y.__i_ == 0)
|
|
{
|
|
size_t __j = _VSTD::min(_Rp - __x.__i_, _Rp - __y.__i_);
|
|
if (!_VSTD::equal(__x.__x_ + __x.__i_, __x.__x_ + __x.__i_ + __j,
|
|
__y.__x_ + __y.__i_))
|
|
return false;
|
|
if (__x.__i_ == 0)
|
|
return _VSTD::equal(__x.__x_ + __j, __x.__x_ + _Rp, __y.__x_);
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + (_Rp - __j), __y.__x_ + __j);
|
|
}
|
|
if (__x.__i_ < __y.__i_)
|
|
{
|
|
size_t __j = _Rp - __y.__i_;
|
|
if (!_VSTD::equal(__x.__x_ + __x.__i_, __x.__x_ + (__x.__i_ + __j),
|
|
__y.__x_ + __y.__i_))
|
|
return false;
|
|
if (!_VSTD::equal(__x.__x_ + (__x.__i_ + __j), __x.__x_ + _Rp,
|
|
__y.__x_))
|
|
return false;
|
|
return _VSTD::equal(__x.__x_, __x.__x_ + __x.__i_,
|
|
__y.__x_ + (_Rp - (__x.__i_ + __j)));
|
|
}
|
|
size_t __j = _Rp - __x.__i_;
|
|
if (!_VSTD::equal(__y.__x_ + __y.__i_, __y.__x_ + (__y.__i_ + __j),
|
|
__x.__x_ + __x.__i_))
|
|
return false;
|
|
if (!_VSTD::equal(__y.__x_ + (__y.__i_ + __j), __y.__x_ + _Rp,
|
|
__x.__x_))
|
|
return false;
|
|
return _VSTD::equal(__y.__x_, __y.__x_ + __y.__i_,
|
|
__x.__x_ + (_Rp - (__y.__i_ + __j)));
|
|
}
|
|
|
|
template<class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.__x_[__x.__i_];
|
|
for (size_t __j = __x.__i_ + 1; __j < _Rp; ++__j)
|
|
__os << __sp << __x.__x_[__j];
|
|
for (size_t __j = 0; __j < __x.__i_; ++__j)
|
|
__os << __sp << __x.__x_[__j];
|
|
__os << __sp << __x.__c_;
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _UI, size_t _Wp, size_t _Sp, size_t _Rp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
subtract_with_carry_engine<_UI, _Wp, _Sp, _Rp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
_UI __t[_Rp+1];
|
|
for (size_t __i = 0; __i < _Rp+1; ++__i)
|
|
__is >> __t[__i];
|
|
if (!__is.fail())
|
|
{
|
|
for (size_t __i = 0; __i < _Rp; ++__i)
|
|
__x.__x_[__i] = __t[__i];
|
|
__x.__c_ = __t[_Rp];
|
|
__x.__i_ = 0;
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
typedef subtract_with_carry_engine<uint_fast32_t, 24, 10, 24> ranlux24_base;
|
|
typedef subtract_with_carry_engine<uint_fast64_t, 48, 5, 12> ranlux48_base;
|
|
|
|
// discard_block_engine
|
|
|
|
template<class _Engine, size_t __p, size_t __r>
|
|
class _LIBCPP_TYPE_VIS_ONLY discard_block_engine
|
|
{
|
|
_Engine __e_;
|
|
int __n_;
|
|
|
|
static_assert( 0 < __r, "discard_block_engine invalid parameters");
|
|
static_assert(__r <= __p, "discard_block_engine invalid parameters");
|
|
public:
|
|
// types
|
|
typedef typename _Engine::result_type result_type;
|
|
|
|
// engine characteristics
|
|
static _LIBCPP_CONSTEXPR const size_t block_size = __p;
|
|
static _LIBCPP_CONSTEXPR const size_t used_block = __r;
|
|
|
|
#ifdef _LIBCPP_HAS_NO_CONSTEXPR
|
|
static const result_type _Min = _Engine::_Min;
|
|
static const result_type _Max = _Engine::_Max;
|
|
#else
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = _Engine::min();
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = _Engine::max();
|
|
#endif
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() { return _Engine::min(); }
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() { return _Engine::max(); }
|
|
|
|
// constructors and seeding functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
discard_block_engine() : __n_(0) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit discard_block_engine(const _Engine& __e)
|
|
: __e_(__e), __n_(0) {}
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit discard_block_engine(_Engine&& __e)
|
|
: __e_(_VSTD::move(__e)), __n_(0) {}
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit discard_block_engine(result_type __sd) : __e_(__sd), __n_(0) {}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit discard_block_engine(_Sseq& __q,
|
|
typename enable_if<__is_seed_sequence<_Sseq, discard_block_engine>::value &&
|
|
!is_convertible<_Sseq, _Engine>::value>::type* = 0)
|
|
: __e_(__q), __n_(0) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed() {__e_.seed(); __n_ = 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(result_type __sd) {__e_.seed(__sd); __n_ = 0;}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__is_seed_sequence<_Sseq, discard_block_engine>::value,
|
|
void
|
|
>::type
|
|
seed(_Sseq& __q) {__e_.seed(__q); __n_ = 0;}
|
|
|
|
// generating functions
|
|
result_type operator()();
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const _Engine& base() const _NOEXCEPT {return __e_;}
|
|
|
|
template<class _Eng, size_t _Pp, size_t _Rp>
|
|
friend
|
|
bool
|
|
operator==(
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __x,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __y);
|
|
|
|
template<class _Eng, size_t _Pp, size_t _Rp>
|
|
friend
|
|
bool
|
|
operator!=(
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __x,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Pp, size_t _Rp>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Pp, size_t _Rp>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
discard_block_engine<_Eng, _Pp, _Rp>& __x);
|
|
};
|
|
|
|
template<class _Engine, size_t __p, size_t __r>
|
|
_LIBCPP_CONSTEXPR const size_t discard_block_engine<_Engine, __p, __r>::block_size;
|
|
|
|
template<class _Engine, size_t __p, size_t __r>
|
|
_LIBCPP_CONSTEXPR const size_t discard_block_engine<_Engine, __p, __r>::used_block;
|
|
|
|
template<class _Engine, size_t __p, size_t __r>
|
|
typename discard_block_engine<_Engine, __p, __r>::result_type
|
|
discard_block_engine<_Engine, __p, __r>::operator()()
|
|
{
|
|
if (__n_ >= __r)
|
|
{
|
|
__e_.discard(__p - __r);
|
|
__n_ = 0;
|
|
}
|
|
++__n_;
|
|
return __e_();
|
|
}
|
|
|
|
template<class _Eng, size_t _Pp, size_t _Rp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(const discard_block_engine<_Eng, _Pp, _Rp>& __x,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __y)
|
|
{
|
|
return __x.__n_ == __y.__n_ && __x.__e_ == __y.__e_;
|
|
}
|
|
|
|
template<class _Eng, size_t _Pp, size_t _Rp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const discard_block_engine<_Eng, _Pp, _Rp>& __x,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Pp, size_t _Rp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const discard_block_engine<_Eng, _Pp, _Rp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.__e_ << __sp << __x.__n_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Pp, size_t _Rp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
discard_block_engine<_Eng, _Pp, _Rp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
_Eng __e;
|
|
int __n;
|
|
__is >> __e >> __n;
|
|
if (!__is.fail())
|
|
{
|
|
__x.__e_ = __e;
|
|
__x.__n_ = __n;
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
typedef discard_block_engine<ranlux24_base, 223, 23> ranlux24;
|
|
typedef discard_block_engine<ranlux48_base, 389, 11> ranlux48;
|
|
|
|
// independent_bits_engine
|
|
|
|
template<class _Engine, size_t __w, class _UIntType>
|
|
class _LIBCPP_TYPE_VIS_ONLY independent_bits_engine
|
|
{
|
|
template <class _UI, _UI _R0, size_t _Wp, size_t _Mp>
|
|
class __get_n
|
|
{
|
|
static _LIBCPP_CONSTEXPR const size_t _Dt = numeric_limits<_UI>::digits;
|
|
static _LIBCPP_CONSTEXPR const size_t _Np = _Wp / _Mp + (_Wp % _Mp != 0);
|
|
static _LIBCPP_CONSTEXPR const size_t _W0 = _Wp / _Np;
|
|
static _LIBCPP_CONSTEXPR const _UI _Y0 = _W0 >= _Dt ? 0 : (_R0 >> _W0) << _W0;
|
|
public:
|
|
static _LIBCPP_CONSTEXPR const size_t value = _R0 - _Y0 > _Y0 / _Np ? _Np + 1 : _Np;
|
|
};
|
|
public:
|
|
// types
|
|
typedef _UIntType result_type;
|
|
|
|
private:
|
|
_Engine __e_;
|
|
|
|
static _LIBCPP_CONSTEXPR const result_type _Dt = numeric_limits<result_type>::digits;
|
|
static_assert( 0 < __w, "independent_bits_engine invalid parameters");
|
|
static_assert(__w <= _Dt, "independent_bits_engine invalid parameters");
|
|
|
|
typedef typename _Engine::result_type _Engine_result_type;
|
|
typedef typename conditional
|
|
<
|
|
sizeof(_Engine_result_type) <= sizeof(result_type),
|
|
result_type,
|
|
_Engine_result_type
|
|
>::type _Working_result_type;
|
|
#ifdef _LIBCPP_HAS_NO_CONSTEXPR
|
|
static const _Working_result_type _Rp = _Engine::_Max - _Engine::_Min
|
|
+ _Working_result_type(1);
|
|
#else
|
|
static _LIBCPP_CONSTEXPR const _Working_result_type _Rp = _Engine::max() - _Engine::min()
|
|
+ _Working_result_type(1);
|
|
#endif
|
|
static _LIBCPP_CONSTEXPR const size_t __m = __log2<_Working_result_type, _Rp>::value;
|
|
static _LIBCPP_CONSTEXPR const size_t __n = __get_n<_Working_result_type, _Rp, __w, __m>::value;
|
|
static _LIBCPP_CONSTEXPR const size_t __w0 = __w / __n;
|
|
static _LIBCPP_CONSTEXPR const size_t __n0 = __n - __w % __n;
|
|
static _LIBCPP_CONSTEXPR const size_t _WDt = numeric_limits<_Working_result_type>::digits;
|
|
static _LIBCPP_CONSTEXPR const size_t _EDt = numeric_limits<_Engine_result_type>::digits;
|
|
static _LIBCPP_CONSTEXPR const _Working_result_type __y0 = __w0 >= _WDt ? 0 :
|
|
(_Rp >> __w0) << __w0;
|
|
static _LIBCPP_CONSTEXPR const _Working_result_type __y1 = __w0 >= _WDt - 1 ? 0 :
|
|
(_Rp >> (__w0+1)) << (__w0+1);
|
|
static _LIBCPP_CONSTEXPR const _Engine_result_type __mask0 = __w0 > 0 ?
|
|
_Engine_result_type(~0) >> (_EDt - __w0) :
|
|
_Engine_result_type(0);
|
|
static _LIBCPP_CONSTEXPR const _Engine_result_type __mask1 = __w0 < _EDt - 1 ?
|
|
_Engine_result_type(~0) >> (_EDt - (__w0 + 1)) :
|
|
_Engine_result_type(~0);
|
|
public:
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = 0;
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = __w == _Dt ? result_type(~0) :
|
|
(result_type(1) << __w) - result_type(1);
|
|
static_assert(_Min < _Max, "independent_bits_engine invalid parameters");
|
|
|
|
// engine characteristics
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() { return _Min; }
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() { return _Max; }
|
|
|
|
// constructors and seeding functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
independent_bits_engine() {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit independent_bits_engine(const _Engine& __e)
|
|
: __e_(__e) {}
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit independent_bits_engine(_Engine&& __e)
|
|
: __e_(_VSTD::move(__e)) {}
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit independent_bits_engine(result_type __sd) : __e_(__sd) {}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit independent_bits_engine(_Sseq& __q,
|
|
typename enable_if<__is_seed_sequence<_Sseq, independent_bits_engine>::value &&
|
|
!is_convertible<_Sseq, _Engine>::value>::type* = 0)
|
|
: __e_(__q) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed() {__e_.seed();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(result_type __sd) {__e_.seed(__sd);}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__is_seed_sequence<_Sseq, independent_bits_engine>::value,
|
|
void
|
|
>::type
|
|
seed(_Sseq& __q) {__e_.seed(__q);}
|
|
|
|
// generating functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()() {return __eval(integral_constant<bool, _Rp != 0>());}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const _Engine& base() const _NOEXCEPT {return __e_;}
|
|
|
|
template<class _Eng, size_t _Wp, class _UI>
|
|
friend
|
|
bool
|
|
operator==(
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __y);
|
|
|
|
template<class _Eng, size_t _Wp, class _UI>
|
|
friend
|
|
bool
|
|
operator!=(
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Wp, class _UI>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Wp, class _UI>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
independent_bits_engine<_Eng, _Wp, _UI>& __x);
|
|
|
|
private:
|
|
result_type __eval(false_type);
|
|
result_type __eval(true_type);
|
|
|
|
template <size_t __count>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static
|
|
typename enable_if
|
|
<
|
|
__count < _Dt,
|
|
result_type
|
|
>::type
|
|
__lshift(result_type __x) {return __x << __count;}
|
|
|
|
template <size_t __count>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static
|
|
typename enable_if
|
|
<
|
|
(__count >= _Dt),
|
|
result_type
|
|
>::type
|
|
__lshift(result_type) {return result_type(0);}
|
|
};
|
|
|
|
template<class _Engine, size_t __w, class _UIntType>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_UIntType
|
|
independent_bits_engine<_Engine, __w, _UIntType>::__eval(false_type)
|
|
{
|
|
return static_cast<result_type>(__e_() & __mask0);
|
|
}
|
|
|
|
template<class _Engine, size_t __w, class _UIntType>
|
|
_UIntType
|
|
independent_bits_engine<_Engine, __w, _UIntType>::__eval(true_type)
|
|
{
|
|
result_type _Sp = 0;
|
|
for (size_t __k = 0; __k < __n0; ++__k)
|
|
{
|
|
_Engine_result_type __u;
|
|
do
|
|
{
|
|
__u = __e_() - _Engine::min();
|
|
} while (__u >= __y0);
|
|
_Sp = static_cast<result_type>(__lshift<__w0>(_Sp) + (__u & __mask0));
|
|
}
|
|
for (size_t __k = __n0; __k < __n; ++__k)
|
|
{
|
|
_Engine_result_type __u;
|
|
do
|
|
{
|
|
__u = __e_() - _Engine::min();
|
|
} while (__u >= __y1);
|
|
_Sp = static_cast<result_type>(__lshift<__w0+1>(_Sp) + (__u & __mask1));
|
|
}
|
|
return _Sp;
|
|
}
|
|
|
|
template<class _Eng, size_t _Wp, class _UI>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __y)
|
|
{
|
|
return __x.base() == __y.base();
|
|
}
|
|
|
|
template<class _Eng, size_t _Wp, class _UI>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Wp, class _UI>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const independent_bits_engine<_Eng, _Wp, _UI>& __x)
|
|
{
|
|
return __os << __x.base();
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Wp, class _UI>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
independent_bits_engine<_Eng, _Wp, _UI>& __x)
|
|
{
|
|
_Eng __e;
|
|
__is >> __e;
|
|
if (!__is.fail())
|
|
__x.__e_ = __e;
|
|
return __is;
|
|
}
|
|
|
|
// shuffle_order_engine
|
|
|
|
template <uint64_t _Xp, uint64_t _Yp>
|
|
struct __ugcd
|
|
{
|
|
static _LIBCPP_CONSTEXPR const uint64_t value = __ugcd<_Yp, _Xp % _Yp>::value;
|
|
};
|
|
|
|
template <uint64_t _Xp>
|
|
struct __ugcd<_Xp, 0>
|
|
{
|
|
static _LIBCPP_CONSTEXPR const uint64_t value = _Xp;
|
|
};
|
|
|
|
template <uint64_t _Np, uint64_t _Dp>
|
|
class __uratio
|
|
{
|
|
static_assert(_Dp != 0, "__uratio divide by 0");
|
|
static _LIBCPP_CONSTEXPR const uint64_t __gcd = __ugcd<_Np, _Dp>::value;
|
|
public:
|
|
static _LIBCPP_CONSTEXPR const uint64_t num = _Np / __gcd;
|
|
static _LIBCPP_CONSTEXPR const uint64_t den = _Dp / __gcd;
|
|
|
|
typedef __uratio<num, den> type;
|
|
};
|
|
|
|
template<class _Engine, size_t __k>
|
|
class _LIBCPP_TYPE_VIS_ONLY shuffle_order_engine
|
|
{
|
|
static_assert(0 < __k, "shuffle_order_engine invalid parameters");
|
|
public:
|
|
// types
|
|
typedef typename _Engine::result_type result_type;
|
|
|
|
private:
|
|
_Engine __e_;
|
|
result_type _V_[__k];
|
|
result_type _Y_;
|
|
|
|
public:
|
|
// engine characteristics
|
|
static _LIBCPP_CONSTEXPR const size_t table_size = __k;
|
|
|
|
#ifdef _LIBCPP_HAS_NO_CONSTEXPR
|
|
static const result_type _Min = _Engine::_Min;
|
|
static const result_type _Max = _Engine::_Max;
|
|
#else
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = _Engine::min();
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = _Engine::max();
|
|
#endif
|
|
static_assert(_Min < _Max, "shuffle_order_engine invalid parameters");
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() { return _Min; }
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() { return _Max; }
|
|
|
|
static _LIBCPP_CONSTEXPR const unsigned long long _Rp = _Max - _Min + 1ull;
|
|
|
|
// constructors and seeding functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
shuffle_order_engine() {__init();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit shuffle_order_engine(const _Engine& __e)
|
|
: __e_(__e) {__init();}
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit shuffle_order_engine(_Engine&& __e)
|
|
: __e_(_VSTD::move(__e)) {__init();}
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit shuffle_order_engine(result_type __sd) : __e_(__sd) {__init();}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit shuffle_order_engine(_Sseq& __q,
|
|
typename enable_if<__is_seed_sequence<_Sseq, shuffle_order_engine>::value &&
|
|
!is_convertible<_Sseq, _Engine>::value>::type* = 0)
|
|
: __e_(__q) {__init();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed() {__e_.seed(); __init();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void seed(result_type __sd) {__e_.seed(__sd); __init();}
|
|
template<class _Sseq>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__is_seed_sequence<_Sseq, shuffle_order_engine>::value,
|
|
void
|
|
>::type
|
|
seed(_Sseq& __q) {__e_.seed(__q); __init();}
|
|
|
|
// generating functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()() {return __eval(integral_constant<bool, _Rp != 0>());}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void discard(unsigned long long __z) {for (; __z; --__z) operator()();}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const _Engine& base() const _NOEXCEPT {return __e_;}
|
|
|
|
private:
|
|
template<class _Eng, size_t _Kp>
|
|
friend
|
|
bool
|
|
operator==(
|
|
const shuffle_order_engine<_Eng, _Kp>& __x,
|
|
const shuffle_order_engine<_Eng, _Kp>& __y);
|
|
|
|
template<class _Eng, size_t _Kp>
|
|
friend
|
|
bool
|
|
operator!=(
|
|
const shuffle_order_engine<_Eng, _Kp>& __x,
|
|
const shuffle_order_engine<_Eng, _Kp>& __y);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Kp>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const shuffle_order_engine<_Eng, _Kp>& __x);
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Kp>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
shuffle_order_engine<_Eng, _Kp>& __x);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void __init()
|
|
{
|
|
for (size_t __i = 0; __i < __k; ++__i)
|
|
_V_[__i] = __e_();
|
|
_Y_ = __e_();
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type __eval(false_type) {return __eval2(integral_constant<bool, __k & 1>());}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type __eval(true_type) {return __eval(__uratio<__k, _Rp>());}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type __eval2(false_type) {return __eval(__uratio<__k/2, 0x8000000000000000ull>());}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type __eval2(true_type) {return __evalf<__k, 0>();}
|
|
|
|
template <uint64_t _Np, uint64_t _Dp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
(__uratio<_Np, _Dp>::num > 0xFFFFFFFFFFFFFFFFull / (_Max - _Min)),
|
|
result_type
|
|
>::type
|
|
__eval(__uratio<_Np, _Dp>)
|
|
{return __evalf<__uratio<_Np, _Dp>::num, __uratio<_Np, _Dp>::den>();}
|
|
|
|
template <uint64_t _Np, uint64_t _Dp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if
|
|
<
|
|
__uratio<_Np, _Dp>::num <= 0xFFFFFFFFFFFFFFFFull / (_Max - _Min),
|
|
result_type
|
|
>::type
|
|
__eval(__uratio<_Np, _Dp>)
|
|
{
|
|
const size_t __j = static_cast<size_t>(__uratio<_Np, _Dp>::num * (_Y_ - _Min)
|
|
/ __uratio<_Np, _Dp>::den);
|
|
_Y_ = _V_[__j];
|
|
_V_[__j] = __e_();
|
|
return _Y_;
|
|
}
|
|
|
|
template <uint64_t __n, uint64_t __d>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type __evalf()
|
|
{
|
|
const double _Fp = __d == 0 ?
|
|
__n / (2. * 0x8000000000000000ull) :
|
|
__n / (double)__d;
|
|
const size_t __j = static_cast<size_t>(_Fp * (_Y_ - _Min));
|
|
_Y_ = _V_[__j];
|
|
_V_[__j] = __e_();
|
|
return _Y_;
|
|
}
|
|
};
|
|
|
|
template<class _Engine, size_t __k>
|
|
_LIBCPP_CONSTEXPR const size_t shuffle_order_engine<_Engine, __k>::table_size;
|
|
|
|
template<class _Eng, size_t _Kp>
|
|
bool
|
|
operator==(
|
|
const shuffle_order_engine<_Eng, _Kp>& __x,
|
|
const shuffle_order_engine<_Eng, _Kp>& __y)
|
|
{
|
|
return __x._Y_ == __y._Y_ && _VSTD::equal(__x._V_, __x._V_ + _Kp, __y._V_) &&
|
|
__x.__e_ == __y.__e_;
|
|
}
|
|
|
|
template<class _Eng, size_t _Kp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(
|
|
const shuffle_order_engine<_Eng, _Kp>& __x,
|
|
const shuffle_order_engine<_Eng, _Kp>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Kp>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const shuffle_order_engine<_Eng, _Kp>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.__e_ << __sp << __x._V_[0];
|
|
for (size_t __i = 1; __i < _Kp; ++__i)
|
|
__os << __sp << __x._V_[__i];
|
|
return __os << __sp << __x._Y_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits,
|
|
class _Eng, size_t _Kp>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
shuffle_order_engine<_Eng, _Kp>& __x)
|
|
{
|
|
typedef typename shuffle_order_engine<_Eng, _Kp>::result_type result_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
_Eng __e;
|
|
result_type _Vp[_Kp+1];
|
|
__is >> __e;
|
|
for (size_t __i = 0; __i < _Kp+1; ++__i)
|
|
__is >> _Vp[__i];
|
|
if (!__is.fail())
|
|
{
|
|
__x.__e_ = __e;
|
|
for (size_t __i = 0; __i < _Kp; ++__i)
|
|
__x._V_[__i] = _Vp[__i];
|
|
__x._Y_ = _Vp[_Kp];
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
typedef shuffle_order_engine<minstd_rand0, 256> knuth_b;
|
|
|
|
// random_device
|
|
|
|
class _LIBCPP_TYPE_VIS random_device
|
|
{
|
|
#if !(defined(_WIN32) || defined(_LIBCPP_USING_NACL_RANDOM))
|
|
int __f_;
|
|
#endif // !(defined(_WIN32) || defined(_LIBCPP_USING_NACL_RANDOM))
|
|
public:
|
|
// types
|
|
typedef unsigned result_type;
|
|
|
|
// generator characteristics
|
|
static _LIBCPP_CONSTEXPR const result_type _Min = 0;
|
|
static _LIBCPP_CONSTEXPR const result_type _Max = 0xFFFFFFFFu;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type min() { return _Min;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static _LIBCPP_CONSTEXPR result_type max() { return _Max;}
|
|
|
|
// constructors
|
|
explicit random_device(const string& __token = "/dev/urandom");
|
|
~random_device();
|
|
|
|
// generating functions
|
|
result_type operator()();
|
|
|
|
// property functions
|
|
double entropy() const _NOEXCEPT;
|
|
|
|
private:
|
|
// no copy functions
|
|
random_device(const random_device&); // = delete;
|
|
random_device& operator=(const random_device&); // = delete;
|
|
};
|
|
|
|
// seed_seq
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY seed_seq
|
|
{
|
|
public:
|
|
// types
|
|
typedef uint32_t result_type;
|
|
|
|
private:
|
|
vector<result_type> __v_;
|
|
|
|
template<class _InputIterator>
|
|
void init(_InputIterator __first, _InputIterator __last);
|
|
public:
|
|
// constructors
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
seed_seq() _NOEXCEPT {}
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _Tp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
seed_seq(initializer_list<_Tp> __il) {init(__il.begin(), __il.end());}
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _InputIterator>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
seed_seq(_InputIterator __first, _InputIterator __last)
|
|
{init(__first, __last);}
|
|
|
|
// generating functions
|
|
template<class _RandomAccessIterator>
|
|
void generate(_RandomAccessIterator __first, _RandomAccessIterator __last);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_t size() const _NOEXCEPT {return __v_.size();}
|
|
template<class _OutputIterator>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(_OutputIterator __dest) const
|
|
{_VSTD::copy(__v_.begin(), __v_.end(), __dest);}
|
|
|
|
private:
|
|
// no copy functions
|
|
seed_seq(const seed_seq&); // = delete;
|
|
void operator=(const seed_seq&); // = delete;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
static result_type _Tp(result_type __x) {return __x ^ (__x >> 27);}
|
|
};
|
|
|
|
template<class _InputIterator>
|
|
void
|
|
seed_seq::init(_InputIterator __first, _InputIterator __last)
|
|
{
|
|
for (_InputIterator __s = __first; __s != __last; ++__s)
|
|
__v_.push_back(*__s & 0xFFFFFFFF);
|
|
}
|
|
|
|
template<class _RandomAccessIterator>
|
|
void
|
|
seed_seq::generate(_RandomAccessIterator __first, _RandomAccessIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_VSTD::fill(__first, __last, 0x8b8b8b8b);
|
|
const size_t __n = static_cast<size_t>(__last - __first);
|
|
const size_t __s = __v_.size();
|
|
const size_t __t = (__n >= 623) ? 11
|
|
: (__n >= 68) ? 7
|
|
: (__n >= 39) ? 5
|
|
: (__n >= 7) ? 3
|
|
: (__n - 1) / 2;
|
|
const size_t __p = (__n - __t) / 2;
|
|
const size_t __q = __p + __t;
|
|
const size_t __m = _VSTD::max(__s + 1, __n);
|
|
// __k = 0;
|
|
{
|
|
result_type __r = 1664525 * _Tp(__first[0] ^ __first[__p]
|
|
^ __first[__n - 1]);
|
|
__first[__p] += __r;
|
|
__r += __s;
|
|
__first[__q] += __r;
|
|
__first[0] = __r;
|
|
}
|
|
for (size_t __k = 1; __k <= __s; ++__k)
|
|
{
|
|
const size_t __kmodn = __k % __n;
|
|
const size_t __kpmodn = (__k + __p) % __n;
|
|
result_type __r = 1664525 * _Tp(__first[__kmodn] ^ __first[__kpmodn]
|
|
^ __first[(__k - 1) % __n]);
|
|
__first[__kpmodn] += __r;
|
|
__r += __kmodn + __v_[__k-1];
|
|
__first[(__k + __q) % __n] += __r;
|
|
__first[__kmodn] = __r;
|
|
}
|
|
for (size_t __k = __s + 1; __k < __m; ++__k)
|
|
{
|
|
const size_t __kmodn = __k % __n;
|
|
const size_t __kpmodn = (__k + __p) % __n;
|
|
result_type __r = 1664525 * _Tp(__first[__kmodn] ^ __first[__kpmodn]
|
|
^ __first[(__k - 1) % __n]);
|
|
__first[__kpmodn] += __r;
|
|
__r += __kmodn;
|
|
__first[(__k + __q) % __n] += __r;
|
|
__first[__kmodn] = __r;
|
|
}
|
|
for (size_t __k = __m; __k < __m + __n; ++__k)
|
|
{
|
|
const size_t __kmodn = __k % __n;
|
|
const size_t __kpmodn = (__k + __p) % __n;
|
|
result_type __r = 1566083941 * _Tp(__first[__kmodn] +
|
|
__first[__kpmodn] +
|
|
__first[(__k - 1) % __n]);
|
|
__first[__kpmodn] ^= __r;
|
|
__r -= __kmodn;
|
|
__first[(__k + __q) % __n] ^= __r;
|
|
__first[__kmodn] = __r;
|
|
}
|
|
}
|
|
}
|
|
|
|
// generate_canonical
|
|
|
|
template<class _RealType, size_t __bits, class _URNG>
|
|
_RealType
|
|
generate_canonical(_URNG& __g)
|
|
{
|
|
const size_t _Dt = numeric_limits<_RealType>::digits;
|
|
const size_t __b = _Dt < __bits ? _Dt : __bits;
|
|
#ifdef _LIBCPP_HAS_NO_CONSTEXPR
|
|
const size_t __logR = __log2<uint64_t, _URNG::_Max - _URNG::_Min + uint64_t(1)>::value;
|
|
#else
|
|
const size_t __logR = __log2<uint64_t, _URNG::max() - _URNG::min() + uint64_t(1)>::value;
|
|
#endif
|
|
const size_t __k = __b / __logR + (__b % __logR != 0) + (__b == 0);
|
|
const _RealType _Rp = _URNG::max() - _URNG::min() + _RealType(1);
|
|
_RealType __base = _Rp;
|
|
_RealType _Sp = __g() - _URNG::min();
|
|
for (size_t __i = 1; __i < __k; ++__i, __base *= _Rp)
|
|
_Sp += (__g() - _URNG::min()) * __base;
|
|
return _Sp / __base;
|
|
}
|
|
|
|
// uniform_int_distribution
|
|
|
|
// in <algorithm>
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const uniform_int_distribution<_IT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.a() << __sp << __x.b();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
uniform_int_distribution<_IT>& __x)
|
|
{
|
|
typedef uniform_int_distribution<_IT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __a;
|
|
result_type __b;
|
|
__is >> __a >> __b;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__a, __b));
|
|
return __is;
|
|
}
|
|
|
|
// uniform_real_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY uniform_real_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __a_;
|
|
result_type __b_;
|
|
public:
|
|
typedef uniform_real_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __a = 0,
|
|
result_type __b = 1)
|
|
: __a_(__a), __b_(__b) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __a_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __b_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__a_ == __y.__a_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit uniform_real_distribution(result_type __a = 0, result_type __b = 1)
|
|
: __p_(param_type(__a, __b)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit uniform_real_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __p_.a();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __p_.b();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return a();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return b();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const uniform_real_distribution& __x,
|
|
const uniform_real_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const uniform_real_distribution& __x,
|
|
const uniform_real_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template<class _RealType>
|
|
template<class _URNG>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
typename uniform_real_distribution<_RealType>::result_type
|
|
uniform_real_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
return (__p.b() - __p.a())
|
|
* _VSTD::generate_canonical<_RealType, numeric_limits<_RealType>::digits>(__g)
|
|
+ __p.a();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const uniform_real_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.a() << __sp << __x.b();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
uniform_real_distribution<_RT>& __x)
|
|
{
|
|
typedef uniform_real_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __a;
|
|
result_type __b;
|
|
__is >> __a >> __b;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__a, __b));
|
|
return __is;
|
|
}
|
|
|
|
// bernoulli_distribution
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY bernoulli_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef bool result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
double __p_;
|
|
public:
|
|
typedef bernoulli_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(double __p = 0.5) : __p_(__p) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit bernoulli_distribution(double __p = 0.5)
|
|
: __p_(param_type(__p)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit bernoulli_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_.p();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return false;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return true;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const bernoulli_distribution& __x,
|
|
const bernoulli_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const bernoulli_distribution& __x,
|
|
const bernoulli_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template<class _URNG>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bernoulli_distribution::result_type
|
|
bernoulli_distribution::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
uniform_real_distribution<double> __gen;
|
|
return __gen(__g) < __p.p();
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, const bernoulli_distribution& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.p();
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, bernoulli_distribution& __x)
|
|
{
|
|
typedef bernoulli_distribution _Eng;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
double __p;
|
|
__is >> __p;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__p));
|
|
return __is;
|
|
}
|
|
|
|
// binomial_distribution
|
|
|
|
template<class _IntType = int>
|
|
class _LIBCPP_TYPE_VIS_ONLY binomial_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _IntType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __t_;
|
|
double __p_;
|
|
double __pr_;
|
|
double __odds_ratio_;
|
|
result_type __r0_;
|
|
public:
|
|
typedef binomial_distribution distribution_type;
|
|
|
|
explicit param_type(result_type __t = 1, double __p = 0.5);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type t() const {return __t_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__t_ == __y.__t_ && __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
|
|
friend class binomial_distribution;
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit binomial_distribution(result_type __t = 1, double __p = 0.5)
|
|
: __p_(param_type(__t, __p)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit binomial_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type t() const {return __p_.t();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_.p();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return t();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const binomial_distribution& __x,
|
|
const binomial_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const binomial_distribution& __x,
|
|
const binomial_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template<class _IntType>
|
|
binomial_distribution<_IntType>::param_type::param_type(result_type __t, double __p)
|
|
: __t_(__t), __p_(__p)
|
|
{
|
|
if (0 < __p_ && __p_ < 1)
|
|
{
|
|
__r0_ = static_cast<result_type>((__t_ + 1) * __p_);
|
|
__pr_ = _VSTD::exp(_VSTD::lgamma(__t_ + 1.) - _VSTD::lgamma(__r0_ + 1.) -
|
|
_VSTD::lgamma(__t_ - __r0_ + 1.) + __r0_ * _VSTD::log(__p_) +
|
|
(__t_ - __r0_) * _VSTD::log(1 - __p_));
|
|
__odds_ratio_ = __p_ / (1 - __p_);
|
|
}
|
|
}
|
|
|
|
// Reference: Kemp, C.D. (1986). `A modal method for generating binomial
|
|
// variables', Commun. Statist. - Theor. Meth. 15(3), 805-813.
|
|
template<class _IntType>
|
|
template<class _URNG>
|
|
_IntType
|
|
binomial_distribution<_IntType>::operator()(_URNG& __g, const param_type& __pr)
|
|
{
|
|
if (__pr.__t_ == 0 || __pr.__p_ == 0)
|
|
return 0;
|
|
if (__pr.__p_ == 1)
|
|
return __pr.__t_;
|
|
uniform_real_distribution<double> __gen;
|
|
double __u = __gen(__g) - __pr.__pr_;
|
|
if (__u < 0)
|
|
return __pr.__r0_;
|
|
double __pu = __pr.__pr_;
|
|
double __pd = __pu;
|
|
result_type __ru = __pr.__r0_;
|
|
result_type __rd = __ru;
|
|
while (true)
|
|
{
|
|
if (__rd >= 1)
|
|
{
|
|
__pd *= __rd / (__pr.__odds_ratio_ * (__pr.__t_ - __rd + 1));
|
|
__u -= __pd;
|
|
if (__u < 0)
|
|
return __rd - 1;
|
|
}
|
|
if ( __rd != 0 )
|
|
--__rd;
|
|
++__ru;
|
|
if (__ru <= __pr.__t_)
|
|
{
|
|
__pu *= (__pr.__t_ - __ru + 1) * __pr.__odds_ratio_ / __ru;
|
|
__u -= __pu;
|
|
if (__u < 0)
|
|
return __ru;
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const binomial_distribution<_IntType>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.t() << __sp << __x.p();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
binomial_distribution<_IntType>& __x)
|
|
{
|
|
typedef binomial_distribution<_IntType> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __t;
|
|
double __p;
|
|
__is >> __t >> __p;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__t, __p));
|
|
return __is;
|
|
}
|
|
|
|
// exponential_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY exponential_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __lambda_;
|
|
public:
|
|
typedef exponential_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __lambda = 1) : __lambda_(__lambda) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type lambda() const {return __lambda_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__lambda_ == __y.__lambda_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit exponential_distribution(result_type __lambda = 1)
|
|
: __p_(param_type(__lambda)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit exponential_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type lambda() const {return __p_.lambda();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const exponential_distribution& __x,
|
|
const exponential_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const exponential_distribution& __x,
|
|
const exponential_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
exponential_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
return -_VSTD::log
|
|
(
|
|
result_type(1) -
|
|
_VSTD::generate_canonical<result_type,
|
|
numeric_limits<result_type>::digits>(__g)
|
|
)
|
|
/ __p.lambda();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RealType>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const exponential_distribution<_RealType>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
return __os << __x.lambda();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RealType>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
exponential_distribution<_RealType>& __x)
|
|
{
|
|
typedef exponential_distribution<_RealType> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __lambda;
|
|
__is >> __lambda;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__lambda));
|
|
return __is;
|
|
}
|
|
|
|
// normal_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY normal_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __mean_;
|
|
result_type __stddev_;
|
|
public:
|
|
typedef normal_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __mean = 0, result_type __stddev = 1)
|
|
: __mean_(__mean), __stddev_(__stddev) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type mean() const {return __mean_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type stddev() const {return __stddev_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__mean_ == __y.__mean_ && __x.__stddev_ == __y.__stddev_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
result_type _V_;
|
|
bool _V_hot_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit normal_distribution(result_type __mean = 0, result_type __stddev = 1)
|
|
: __p_(param_type(__mean, __stddev)), _V_hot_(false) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit normal_distribution(const param_type& __p)
|
|
: __p_(__p), _V_hot_(false) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {_V_hot_ = false;}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type mean() const {return __p_.mean();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type stddev() const {return __p_.stddev();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return -numeric_limits<result_type>::infinity();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const normal_distribution& __x,
|
|
const normal_distribution& __y)
|
|
{return __x.__p_ == __y.__p_ && __x._V_hot_ == __y._V_hot_ &&
|
|
(!__x._V_hot_ || __x._V_ == __y._V_);}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const normal_distribution& __x,
|
|
const normal_distribution& __y)
|
|
{return !(__x == __y);}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const normal_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
normal_distribution<_RT>& __x);
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
normal_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
result_type _Up;
|
|
if (_V_hot_)
|
|
{
|
|
_V_hot_ = false;
|
|
_Up = _V_;
|
|
}
|
|
else
|
|
{
|
|
uniform_real_distribution<result_type> _Uni(-1, 1);
|
|
result_type __u;
|
|
result_type __v;
|
|
result_type __s;
|
|
do
|
|
{
|
|
__u = _Uni(__g);
|
|
__v = _Uni(__g);
|
|
__s = __u * __u + __v * __v;
|
|
} while (__s > 1 || __s == 0);
|
|
result_type _Fp = _VSTD::sqrt(-2 * _VSTD::log(__s) / __s);
|
|
_V_ = __v * _Fp;
|
|
_V_hot_ = true;
|
|
_Up = __u * _Fp;
|
|
}
|
|
return _Up * __p.stddev() + __p.mean();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const normal_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.mean() << __sp << __x.stddev() << __sp << __x._V_hot_;
|
|
if (__x._V_hot_)
|
|
__os << __sp << __x._V_;
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
normal_distribution<_RT>& __x)
|
|
{
|
|
typedef normal_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __mean;
|
|
result_type __stddev;
|
|
result_type _Vp = 0;
|
|
bool _V_hot = false;
|
|
__is >> __mean >> __stddev >> _V_hot;
|
|
if (_V_hot)
|
|
__is >> _Vp;
|
|
if (!__is.fail())
|
|
{
|
|
__x.param(param_type(__mean, __stddev));
|
|
__x._V_hot_ = _V_hot;
|
|
__x._V_ = _Vp;
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
// lognormal_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY lognormal_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
normal_distribution<result_type> __nd_;
|
|
public:
|
|
typedef lognormal_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __m = 0, result_type __s = 1)
|
|
: __nd_(__m, __s) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type m() const {return __nd_.mean();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type s() const {return __nd_.stddev();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__nd_ == __y.__nd_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
friend class lognormal_distribution;
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const lognormal_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
lognormal_distribution<_RT>& __x);
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit lognormal_distribution(result_type __m = 0, result_type __s = 1)
|
|
: __p_(param_type(__m, __s)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit lognormal_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {__p_.__nd_.reset();}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g, const param_type& __p)
|
|
{return _VSTD::exp(const_cast<normal_distribution<result_type>&>(__p.__nd_)(__g));}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type m() const {return __p_.m();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type s() const {return __p_.s();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const lognormal_distribution& __x,
|
|
const lognormal_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const lognormal_distribution& __x,
|
|
const lognormal_distribution& __y)
|
|
{return !(__x == __y);}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const lognormal_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
lognormal_distribution<_RT>& __x);
|
|
};
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const lognormal_distribution<_RT>& __x)
|
|
{
|
|
return __os << __x.__p_.__nd_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
lognormal_distribution<_RT>& __x)
|
|
{
|
|
return __is >> __x.__p_.__nd_;
|
|
}
|
|
|
|
// poisson_distribution
|
|
|
|
template<class _IntType = int>
|
|
class _LIBCPP_TYPE_VIS_ONLY poisson_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _IntType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
double __mean_;
|
|
double __s_;
|
|
double __d_;
|
|
double __l_;
|
|
double __omega_;
|
|
double __c0_;
|
|
double __c1_;
|
|
double __c2_;
|
|
double __c3_;
|
|
double __c_;
|
|
|
|
public:
|
|
typedef poisson_distribution distribution_type;
|
|
|
|
explicit param_type(double __mean = 1.0);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double mean() const {return __mean_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__mean_ == __y.__mean_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
|
|
friend class poisson_distribution;
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit poisson_distribution(double __mean = 1.0) : __p_(__mean) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit poisson_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double mean() const {return __p_.mean();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::max();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const poisson_distribution& __x,
|
|
const poisson_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const poisson_distribution& __x,
|
|
const poisson_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template<class _IntType>
|
|
poisson_distribution<_IntType>::param_type::param_type(double __mean)
|
|
: __mean_(__mean)
|
|
{
|
|
if (__mean_ < 10)
|
|
{
|
|
__s_ = 0;
|
|
__d_ = 0;
|
|
__l_ = _VSTD::exp(-__mean_);
|
|
__omega_ = 0;
|
|
__c3_ = 0;
|
|
__c2_ = 0;
|
|
__c1_ = 0;
|
|
__c0_ = 0;
|
|
__c_ = 0;
|
|
}
|
|
else
|
|
{
|
|
__s_ = _VSTD::sqrt(__mean_);
|
|
__d_ = 6 * __mean_ * __mean_;
|
|
__l_ = static_cast<result_type>(__mean_ - 1.1484);
|
|
__omega_ = .3989423 / __s_;
|
|
double __b1_ = .4166667E-1 / __mean_;
|
|
double __b2_ = .3 * __b1_ * __b1_;
|
|
__c3_ = .1428571 * __b1_ * __b2_;
|
|
__c2_ = __b2_ - 15. * __c3_;
|
|
__c1_ = __b1_ - 6. * __b2_ + 45. * __c3_;
|
|
__c0_ = 1. - __b1_ + 3. * __b2_ - 15. * __c3_;
|
|
__c_ = .1069 / __mean_;
|
|
}
|
|
}
|
|
|
|
template <class _IntType>
|
|
template<class _URNG>
|
|
_IntType
|
|
poisson_distribution<_IntType>::operator()(_URNG& __urng, const param_type& __pr)
|
|
{
|
|
result_type __x;
|
|
uniform_real_distribution<double> __urd;
|
|
if (__pr.__mean_ < 10)
|
|
{
|
|
__x = 0;
|
|
for (double __p = __urd(__urng); __p > __pr.__l_; ++__x)
|
|
__p *= __urd(__urng);
|
|
}
|
|
else
|
|
{
|
|
double __difmuk;
|
|
double __g = __pr.__mean_ + __pr.__s_ * normal_distribution<double>()(__urng);
|
|
double __u;
|
|
if (__g > 0)
|
|
{
|
|
__x = static_cast<result_type>(__g);
|
|
if (__x >= __pr.__l_)
|
|
return __x;
|
|
__difmuk = __pr.__mean_ - __x;
|
|
__u = __urd(__urng);
|
|
if (__pr.__d_ * __u >= __difmuk * __difmuk * __difmuk)
|
|
return __x;
|
|
}
|
|
exponential_distribution<double> __edist;
|
|
for (bool __using_exp_dist = false; true; __using_exp_dist = true)
|
|
{
|
|
double __e;
|
|
if (__using_exp_dist || __g < 0)
|
|
{
|
|
double __t;
|
|
do
|
|
{
|
|
__e = __edist(__urng);
|
|
__u = __urd(__urng);
|
|
__u += __u - 1;
|
|
__t = 1.8 + (__u < 0 ? -__e : __e);
|
|
} while (__t <= -.6744);
|
|
__x = __pr.__mean_ + __pr.__s_ * __t;
|
|
__difmuk = __pr.__mean_ - __x;
|
|
__using_exp_dist = true;
|
|
}
|
|
double __px;
|
|
double __py;
|
|
if (__x < 10)
|
|
{
|
|
const result_type __fac[] = {1, 1, 2, 6, 24, 120, 720, 5040,
|
|
40320, 362880};
|
|
__px = -__pr.__mean_;
|
|
__py = _VSTD::pow(__pr.__mean_, (double)__x) / __fac[__x];
|
|
}
|
|
else
|
|
{
|
|
double __del = .8333333E-1 / __x;
|
|
__del -= 4.8 * __del * __del * __del;
|
|
double __v = __difmuk / __x;
|
|
if (_VSTD::abs(__v) > 0.25)
|
|
__px = __x * _VSTD::log(1 + __v) - __difmuk - __del;
|
|
else
|
|
__px = __x * __v * __v * (((((((.1250060 * __v + -.1384794) *
|
|
__v + .1421878) * __v + -.1661269) * __v + .2000118) *
|
|
__v + -.2500068) * __v + .3333333) * __v + -.5) - __del;
|
|
__py = .3989423 / _VSTD::sqrt(__x);
|
|
}
|
|
double __r = (0.5 - __difmuk) / __pr.__s_;
|
|
double __r2 = __r * __r;
|
|
double __fx = -0.5 * __r2;
|
|
double __fy = __pr.__omega_ * (((__pr.__c3_ * __r2 + __pr.__c2_) *
|
|
__r2 + __pr.__c1_) * __r2 + __pr.__c0_);
|
|
if (__using_exp_dist)
|
|
{
|
|
if (__pr.__c_ * _VSTD::abs(__u) <= __py * _VSTD::exp(__px + __e) -
|
|
__fy * _VSTD::exp(__fx + __e))
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (__fy - __u * __fy <= __py * _VSTD::exp(__px - __fx))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return __x;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const poisson_distribution<_IntType>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
return __os << __x.mean();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
poisson_distribution<_IntType>& __x)
|
|
{
|
|
typedef poisson_distribution<_IntType> _Eng;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
double __mean;
|
|
__is >> __mean;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__mean));
|
|
return __is;
|
|
}
|
|
|
|
// weibull_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY weibull_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __a_;
|
|
result_type __b_;
|
|
public:
|
|
typedef weibull_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __a = 1, result_type __b = 1)
|
|
: __a_(__a), __b_(__b) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __a_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __b_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__a_ == __y.__a_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit weibull_distribution(result_type __a = 1, result_type __b = 1)
|
|
: __p_(param_type(__a, __b)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit weibull_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g, const param_type& __p)
|
|
{return __p.b() *
|
|
_VSTD::pow(exponential_distribution<result_type>()(__g), 1/__p.a());}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __p_.a();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __p_.b();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const weibull_distribution& __x,
|
|
const weibull_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const weibull_distribution& __x,
|
|
const weibull_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const weibull_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.a() << __sp << __x.b();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
weibull_distribution<_RT>& __x)
|
|
{
|
|
typedef weibull_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __a;
|
|
result_type __b;
|
|
__is >> __a >> __b;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__a, __b));
|
|
return __is;
|
|
}
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY extreme_value_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __a_;
|
|
result_type __b_;
|
|
public:
|
|
typedef extreme_value_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __a = 0, result_type __b = 1)
|
|
: __a_(__a), __b_(__b) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __a_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __b_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__a_ == __y.__a_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit extreme_value_distribution(result_type __a = 0, result_type __b = 1)
|
|
: __p_(param_type(__a, __b)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit extreme_value_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __p_.a();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __p_.b();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return -numeric_limits<result_type>::infinity();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const extreme_value_distribution& __x,
|
|
const extreme_value_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const extreme_value_distribution& __x,
|
|
const extreme_value_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template<class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
extreme_value_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
return __p.a() - __p.b() *
|
|
_VSTD::log(-_VSTD::log(1-uniform_real_distribution<result_type>()(__g)));
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const extreme_value_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.a() << __sp << __x.b();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
extreme_value_distribution<_RT>& __x)
|
|
{
|
|
typedef extreme_value_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __a;
|
|
result_type __b;
|
|
__is >> __a >> __b;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__a, __b));
|
|
return __is;
|
|
}
|
|
|
|
// gamma_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY gamma_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __alpha_;
|
|
result_type __beta_;
|
|
public:
|
|
typedef gamma_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __alpha = 1, result_type __beta = 1)
|
|
: __alpha_(__alpha), __beta_(__beta) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type alpha() const {return __alpha_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type beta() const {return __beta_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__alpha_ == __y.__alpha_ && __x.__beta_ == __y.__beta_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit gamma_distribution(result_type __alpha = 1, result_type __beta = 1)
|
|
: __p_(param_type(__alpha, __beta)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit gamma_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type alpha() const {return __p_.alpha();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type beta() const {return __p_.beta();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const gamma_distribution& __x,
|
|
const gamma_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const gamma_distribution& __x,
|
|
const gamma_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
gamma_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
result_type __a = __p.alpha();
|
|
uniform_real_distribution<result_type> __gen(0, 1);
|
|
exponential_distribution<result_type> __egen;
|
|
result_type __x;
|
|
if (__a == 1)
|
|
__x = __egen(__g);
|
|
else if (__a > 1)
|
|
{
|
|
const result_type __b = __a - 1;
|
|
const result_type __c = 3 * __a - result_type(0.75);
|
|
while (true)
|
|
{
|
|
const result_type __u = __gen(__g);
|
|
const result_type __v = __gen(__g);
|
|
const result_type __w = __u * (1 - __u);
|
|
if (__w != 0)
|
|
{
|
|
const result_type __y = _VSTD::sqrt(__c / __w) *
|
|
(__u - result_type(0.5));
|
|
__x = __b + __y;
|
|
if (__x >= 0)
|
|
{
|
|
const result_type __z = 64 * __w * __w * __w * __v * __v;
|
|
if (__z <= 1 - 2 * __y * __y / __x)
|
|
break;
|
|
if (_VSTD::log(__z) <= 2 * (__b * _VSTD::log(__x / __b) - __y))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else // __a < 1
|
|
{
|
|
while (true)
|
|
{
|
|
const result_type __u = __gen(__g);
|
|
const result_type __es = __egen(__g);
|
|
if (__u <= 1 - __a)
|
|
{
|
|
__x = _VSTD::pow(__u, 1 / __a);
|
|
if (__x <= __es)
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
const result_type __e = -_VSTD::log((1-__u)/__a);
|
|
__x = _VSTD::pow(1 - __a + __a * __e, 1 / __a);
|
|
if (__x <= __e + __es)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return __x * __p.beta();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const gamma_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.alpha() << __sp << __x.beta();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
gamma_distribution<_RT>& __x)
|
|
{
|
|
typedef gamma_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __alpha;
|
|
result_type __beta;
|
|
__is >> __alpha >> __beta;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__alpha, __beta));
|
|
return __is;
|
|
}
|
|
|
|
// negative_binomial_distribution
|
|
|
|
template<class _IntType = int>
|
|
class _LIBCPP_TYPE_VIS_ONLY negative_binomial_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _IntType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __k_;
|
|
double __p_;
|
|
public:
|
|
typedef negative_binomial_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __k = 1, double __p = 0.5)
|
|
: __k_(__k), __p_(__p) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type k() const {return __k_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__k_ == __y.__k_ && __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit negative_binomial_distribution(result_type __k = 1, double __p = 0.5)
|
|
: __p_(__k, __p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit negative_binomial_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type k() const {return __p_.k();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_.p();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::max();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const negative_binomial_distribution& __x,
|
|
const negative_binomial_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const negative_binomial_distribution& __x,
|
|
const negative_binomial_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _IntType>
|
|
template<class _URNG>
|
|
_IntType
|
|
negative_binomial_distribution<_IntType>::operator()(_URNG& __urng, const param_type& __pr)
|
|
{
|
|
result_type __k = __pr.k();
|
|
double __p = __pr.p();
|
|
if (__k <= 21 * __p)
|
|
{
|
|
bernoulli_distribution __gen(__p);
|
|
result_type __f = 0;
|
|
result_type __s = 0;
|
|
while (__s < __k)
|
|
{
|
|
if (__gen(__urng))
|
|
++__s;
|
|
else
|
|
++__f;
|
|
}
|
|
return __f;
|
|
}
|
|
return poisson_distribution<result_type>(gamma_distribution<double>
|
|
(__k, (1-__p)/__p)(__urng))(__urng);
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const negative_binomial_distribution<_IntType>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
return __os << __x.k() << __sp << __x.p();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
negative_binomial_distribution<_IntType>& __x)
|
|
{
|
|
typedef negative_binomial_distribution<_IntType> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __k;
|
|
double __p;
|
|
__is >> __k >> __p;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__k, __p));
|
|
return __is;
|
|
}
|
|
|
|
// geometric_distribution
|
|
|
|
template<class _IntType = int>
|
|
class _LIBCPP_TYPE_VIS_ONLY geometric_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _IntType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
double __p_;
|
|
public:
|
|
typedef geometric_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(double __p = 0.5) : __p_(__p) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructors and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit geometric_distribution(double __p = 0.5) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit geometric_distribution(const param_type& __p) : __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g, const param_type& __p)
|
|
{return negative_binomial_distribution<result_type>(1, __p.p())(__g);}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
double p() const {return __p_.p();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::max();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const geometric_distribution& __x,
|
|
const geometric_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const geometric_distribution& __x,
|
|
const geometric_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const geometric_distribution<_IntType>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
return __os << __x.p();
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IntType>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
geometric_distribution<_IntType>& __x)
|
|
{
|
|
typedef geometric_distribution<_IntType> _Eng;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
double __p;
|
|
__is >> __p;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__p));
|
|
return __is;
|
|
}
|
|
|
|
// chi_squared_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY chi_squared_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __n_;
|
|
public:
|
|
typedef chi_squared_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __n = 1) : __n_(__n) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __n_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__n_ == __y.__n_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit chi_squared_distribution(result_type __n = 1)
|
|
: __p_(param_type(__n)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit chi_squared_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g, const param_type& __p)
|
|
{return gamma_distribution<result_type>(__p.n() / 2, 2)(__g);}
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __p_.n();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const chi_squared_distribution& __x,
|
|
const chi_squared_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const chi_squared_distribution& __x,
|
|
const chi_squared_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const chi_squared_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
__os << __x.n();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
chi_squared_distribution<_RT>& __x)
|
|
{
|
|
typedef chi_squared_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __n;
|
|
__is >> __n;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__n));
|
|
return __is;
|
|
}
|
|
|
|
// cauchy_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY cauchy_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __a_;
|
|
result_type __b_;
|
|
public:
|
|
typedef cauchy_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __a = 0, result_type __b = 1)
|
|
: __a_(__a), __b_(__b) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __a_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __b_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__a_ == __y.__a_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit cauchy_distribution(result_type __a = 0, result_type __b = 1)
|
|
: __p_(param_type(__a, __b)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit cauchy_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type a() const {return __p_.a();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type b() const {return __p_.b();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return -numeric_limits<result_type>::infinity();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const cauchy_distribution& __x,
|
|
const cauchy_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const cauchy_distribution& __x,
|
|
const cauchy_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_RealType
|
|
cauchy_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
uniform_real_distribution<result_type> __gen;
|
|
// purposefully let tan arg get as close to pi/2 as it wants, tan will return a finite
|
|
return __p.a() + __p.b() * _VSTD::tan(3.1415926535897932384626433832795 * __gen(__g));
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const cauchy_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.a() << __sp << __x.b();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
cauchy_distribution<_RT>& __x)
|
|
{
|
|
typedef cauchy_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __a;
|
|
result_type __b;
|
|
__is >> __a >> __b;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__a, __b));
|
|
return __is;
|
|
}
|
|
|
|
// fisher_f_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY fisher_f_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __m_;
|
|
result_type __n_;
|
|
public:
|
|
typedef fisher_f_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __m = 1, result_type __n = 1)
|
|
: __m_(__m), __n_(__n) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type m() const {return __m_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __n_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__m_ == __y.__m_ && __x.__n_ == __y.__n_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit fisher_f_distribution(result_type __m = 1, result_type __n = 1)
|
|
: __p_(param_type(__m, __n)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit fisher_f_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type m() const {return __p_.m();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __p_.n();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const fisher_f_distribution& __x,
|
|
const fisher_f_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const fisher_f_distribution& __x,
|
|
const fisher_f_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
fisher_f_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
gamma_distribution<result_type> __gdm(__p.m() * result_type(.5));
|
|
gamma_distribution<result_type> __gdn(__p.n() * result_type(.5));
|
|
return __p.n() * __gdm(__g) / (__p.m() * __gdn(__g));
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const fisher_f_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
__os << __x.m() << __sp << __x.n();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
fisher_f_distribution<_RT>& __x)
|
|
{
|
|
typedef fisher_f_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __m;
|
|
result_type __n;
|
|
__is >> __m >> __n;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__m, __n));
|
|
return __is;
|
|
}
|
|
|
|
// student_t_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY student_t_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
result_type __n_;
|
|
public:
|
|
typedef student_t_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit param_type(result_type __n = 1) : __n_(__n) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __n_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__n_ == __y.__n_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
normal_distribution<result_type> __nd_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit student_t_distribution(result_type __n = 1)
|
|
: __p_(param_type(__n)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit student_t_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {__nd_.reset();}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type n() const {return __p_.n();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return -numeric_limits<result_type>::infinity();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return numeric_limits<result_type>::infinity();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const student_t_distribution& __x,
|
|
const student_t_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const student_t_distribution& __x,
|
|
const student_t_distribution& __y)
|
|
{return !(__x == __y);}
|
|
};
|
|
|
|
template <class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
student_t_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
gamma_distribution<result_type> __gd(__p.n() * .5, 2);
|
|
return __nd_(__g) * _VSTD::sqrt(__p.n()/__gd(__g));
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const student_t_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
__os << __x.n();
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
student_t_distribution<_RT>& __x)
|
|
{
|
|
typedef student_t_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
result_type __n;
|
|
__is >> __n;
|
|
if (!__is.fail())
|
|
__x.param(param_type(__n));
|
|
return __is;
|
|
}
|
|
|
|
// discrete_distribution
|
|
|
|
template<class _IntType = int>
|
|
class _LIBCPP_TYPE_VIS_ONLY discrete_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _IntType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
vector<double> __p_;
|
|
public:
|
|
typedef discrete_distribution distribution_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type() {}
|
|
template<class _InputIterator>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type(_InputIterator __f, _InputIterator __l)
|
|
: __p_(__f, __l) {__init();}
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type(initializer_list<double> __wl)
|
|
: __p_(__wl.begin(), __wl.end()) {__init();}
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
param_type(size_t __nw, double __xmin, double __xmax,
|
|
_UnaryOperation __fw);
|
|
|
|
vector<double> probabilities() const;
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
void __init();
|
|
|
|
friend class discrete_distribution;
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const discrete_distribution<_IT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
discrete_distribution<_IT>& __x);
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
discrete_distribution() {}
|
|
template<class _InputIterator>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
discrete_distribution(_InputIterator __f, _InputIterator __l)
|
|
: __p_(__f, __l) {}
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
discrete_distribution(initializer_list<double> __wl)
|
|
: __p_(__wl) {}
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
discrete_distribution(size_t __nw, double __xmin, double __xmax,
|
|
_UnaryOperation __fw)
|
|
: __p_(__nw, __xmin, __xmax, __fw) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit discrete_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<double> probabilities() const {return __p_.probabilities();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return 0;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return __p_.__p_.size();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const discrete_distribution& __x,
|
|
const discrete_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const discrete_distribution& __x,
|
|
const discrete_distribution& __y)
|
|
{return !(__x == __y);}
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const discrete_distribution<_IT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
discrete_distribution<_IT>& __x);
|
|
};
|
|
|
|
template<class _IntType>
|
|
template<class _UnaryOperation>
|
|
discrete_distribution<_IntType>::param_type::param_type(size_t __nw,
|
|
double __xmin,
|
|
double __xmax,
|
|
_UnaryOperation __fw)
|
|
{
|
|
if (__nw > 1)
|
|
{
|
|
__p_.reserve(__nw - 1);
|
|
double __d = (__xmax - __xmin) / __nw;
|
|
double __d2 = __d / 2;
|
|
for (size_t __k = 0; __k < __nw; ++__k)
|
|
__p_.push_back(__fw(__xmin + __k * __d + __d2));
|
|
__init();
|
|
}
|
|
}
|
|
|
|
template<class _IntType>
|
|
void
|
|
discrete_distribution<_IntType>::param_type::__init()
|
|
{
|
|
if (!__p_.empty())
|
|
{
|
|
if (__p_.size() > 1)
|
|
{
|
|
double __s = _VSTD::accumulate(__p_.begin(), __p_.end(), 0.0);
|
|
for (_VSTD::vector<double>::iterator __i = __p_.begin(), __e = __p_.end();
|
|
__i < __e; ++__i)
|
|
*__i /= __s;
|
|
vector<double> __t(__p_.size() - 1);
|
|
_VSTD::partial_sum(__p_.begin(), __p_.end() - 1, __t.begin());
|
|
swap(__p_, __t);
|
|
}
|
|
else
|
|
{
|
|
__p_.clear();
|
|
__p_.shrink_to_fit();
|
|
}
|
|
}
|
|
}
|
|
|
|
template<class _IntType>
|
|
vector<double>
|
|
discrete_distribution<_IntType>::param_type::probabilities() const
|
|
{
|
|
size_t __n = __p_.size();
|
|
_VSTD::vector<double> __p(__n+1);
|
|
_VSTD::adjacent_difference(__p_.begin(), __p_.end(), __p.begin());
|
|
if (__n > 0)
|
|
__p[__n] = 1 - __p_[__n-1];
|
|
else
|
|
__p[0] = 1;
|
|
return __p;
|
|
}
|
|
|
|
template<class _IntType>
|
|
template<class _URNG>
|
|
_IntType
|
|
discrete_distribution<_IntType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
uniform_real_distribution<double> __gen;
|
|
return static_cast<_IntType>(
|
|
_VSTD::upper_bound(__p.__p_.begin(), __p.__p_.end(), __gen(__g)) -
|
|
__p.__p_.begin());
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const discrete_distribution<_IT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
size_t __n = __x.__p_.__p_.size();
|
|
__os << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__p_[__i];
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _IT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
discrete_distribution<_IT>& __x)
|
|
{
|
|
typedef discrete_distribution<_IT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
size_t __n;
|
|
__is >> __n;
|
|
vector<double> __p(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __p[__i];
|
|
if (!__is.fail())
|
|
swap(__x.__p_.__p_, __p);
|
|
return __is;
|
|
}
|
|
|
|
// piecewise_constant_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY piecewise_constant_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
vector<result_type> __b_;
|
|
vector<result_type> __densities_;
|
|
vector<result_type> __areas_;
|
|
public:
|
|
typedef piecewise_constant_distribution distribution_type;
|
|
|
|
param_type();
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
param_type(_InputIteratorB __fB, _InputIteratorB __lB,
|
|
_InputIteratorW __fW);
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
param_type(initializer_list<result_type> __bl, _UnaryOperation __fw);
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
param_type(size_t __nw, result_type __xmin, result_type __xmax,
|
|
_UnaryOperation __fw);
|
|
param_type & operator=(const param_type& __rhs);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> intervals() const {return __b_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> densities() const {return __densities_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__densities_ == __y.__densities_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
void __init();
|
|
|
|
friend class piecewise_constant_distribution;
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_constant_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_constant_distribution<_RT>& __x);
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_constant_distribution() {}
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_constant_distribution(_InputIteratorB __fB,
|
|
_InputIteratorB __lB,
|
|
_InputIteratorW __fW)
|
|
: __p_(__fB, __lB, __fW) {}
|
|
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_constant_distribution(initializer_list<result_type> __bl,
|
|
_UnaryOperation __fw)
|
|
: __p_(__bl, __fw) {}
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _UnaryOperation>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_constant_distribution(size_t __nw, result_type __xmin,
|
|
result_type __xmax, _UnaryOperation __fw)
|
|
: __p_(__nw, __xmin, __xmax, __fw) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit piecewise_constant_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> intervals() const {return __p_.intervals();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> densities() const {return __p_.densities();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return __p_.__b_.front();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return __p_.__b_.back();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const piecewise_constant_distribution& __x,
|
|
const piecewise_constant_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const piecewise_constant_distribution& __x,
|
|
const piecewise_constant_distribution& __y)
|
|
{return !(__x == __y);}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_constant_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_constant_distribution<_RT>& __x);
|
|
};
|
|
|
|
template<class _RealType>
|
|
typename piecewise_constant_distribution<_RealType>::param_type &
|
|
piecewise_constant_distribution<_RealType>::param_type::operator=
|
|
(const param_type& __rhs)
|
|
{
|
|
// These can throw
|
|
__b_.reserve (__rhs.__b_.size ());
|
|
__densities_.reserve(__rhs.__densities_.size());
|
|
__areas_.reserve (__rhs.__areas_.size());
|
|
|
|
// These can not throw
|
|
__b_ = __rhs.__b_;
|
|
__densities_ = __rhs.__densities_;
|
|
__areas_ = __rhs.__areas_;
|
|
return *this;
|
|
}
|
|
|
|
template<class _RealType>
|
|
void
|
|
piecewise_constant_distribution<_RealType>::param_type::__init()
|
|
{
|
|
// __densities_ contains non-normalized areas
|
|
result_type __total_area = _VSTD::accumulate(__densities_.begin(),
|
|
__densities_.end(),
|
|
result_type());
|
|
for (size_t __i = 0; __i < __densities_.size(); ++__i)
|
|
__densities_[__i] /= __total_area;
|
|
// __densities_ contains normalized areas
|
|
__areas_.assign(__densities_.size(), result_type());
|
|
_VSTD::partial_sum(__densities_.begin(), __densities_.end() - 1,
|
|
__areas_.begin() + 1);
|
|
// __areas_ contains partial sums of normalized areas: [0, __densities_ - 1]
|
|
__densities_.back() = 1 - __areas_.back(); // correct round off error
|
|
for (size_t __i = 0; __i < __densities_.size(); ++__i)
|
|
__densities_[__i] /= (__b_[__i+1] - __b_[__i]);
|
|
// __densities_ now contains __densities_
|
|
}
|
|
|
|
template<class _RealType>
|
|
piecewise_constant_distribution<_RealType>::param_type::param_type()
|
|
: __b_(2),
|
|
__densities_(1, 1.0),
|
|
__areas_(1, 0.0)
|
|
{
|
|
__b_[1] = 1;
|
|
}
|
|
|
|
template<class _RealType>
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
piecewise_constant_distribution<_RealType>::param_type::param_type(
|
|
_InputIteratorB __fB, _InputIteratorB __lB, _InputIteratorW __fW)
|
|
: __b_(__fB, __lB)
|
|
{
|
|
if (__b_.size() < 2)
|
|
{
|
|
__b_.resize(2);
|
|
__b_[0] = 0;
|
|
__b_[1] = 1;
|
|
__densities_.assign(1, 1.0);
|
|
__areas_.assign(1, 0.0);
|
|
}
|
|
else
|
|
{
|
|
__densities_.reserve(__b_.size() - 1);
|
|
for (size_t __i = 0; __i < __b_.size() - 1; ++__i, ++__fW)
|
|
__densities_.push_back(*__fW);
|
|
__init();
|
|
}
|
|
}
|
|
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _RealType>
|
|
template<class _UnaryOperation>
|
|
piecewise_constant_distribution<_RealType>::param_type::param_type(
|
|
initializer_list<result_type> __bl, _UnaryOperation __fw)
|
|
: __b_(__bl.begin(), __bl.end())
|
|
{
|
|
if (__b_.size() < 2)
|
|
{
|
|
__b_.resize(2);
|
|
__b_[0] = 0;
|
|
__b_[1] = 1;
|
|
__densities_.assign(1, 1.0);
|
|
__areas_.assign(1, 0.0);
|
|
}
|
|
else
|
|
{
|
|
__densities_.reserve(__b_.size() - 1);
|
|
for (size_t __i = 0; __i < __b_.size() - 1; ++__i)
|
|
__densities_.push_back(__fw((__b_[__i+1] + __b_[__i])*.5));
|
|
__init();
|
|
}
|
|
}
|
|
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _RealType>
|
|
template<class _UnaryOperation>
|
|
piecewise_constant_distribution<_RealType>::param_type::param_type(
|
|
size_t __nw, result_type __xmin, result_type __xmax, _UnaryOperation __fw)
|
|
: __b_(__nw == 0 ? 2 : __nw + 1)
|
|
{
|
|
size_t __n = __b_.size() - 1;
|
|
result_type __d = (__xmax - __xmin) / __n;
|
|
__densities_.reserve(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
{
|
|
__b_[__i] = __xmin + __i * __d;
|
|
__densities_.push_back(__fw(__b_[__i] + __d*.5));
|
|
}
|
|
__b_[__n] = __xmax;
|
|
__init();
|
|
}
|
|
|
|
template<class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
piecewise_constant_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
typedef uniform_real_distribution<result_type> _Gen;
|
|
result_type __u = _Gen()(__g);
|
|
ptrdiff_t __k = _VSTD::upper_bound(__p.__areas_.begin(), __p.__areas_.end(),
|
|
__u) - __p.__areas_.begin() - 1;
|
|
return (__u - __p.__areas_[__k]) / __p.__densities_[__k] + __p.__b_[__k];
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_constant_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
size_t __n = __x.__p_.__b_.size();
|
|
__os << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__b_[__i];
|
|
__n = __x.__p_.__densities_.size();
|
|
__os << __sp << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__densities_[__i];
|
|
__n = __x.__p_.__areas_.size();
|
|
__os << __sp << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__areas_[__i];
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_constant_distribution<_RT>& __x)
|
|
{
|
|
typedef piecewise_constant_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
size_t __n;
|
|
__is >> __n;
|
|
vector<result_type> __b(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __b[__i];
|
|
__is >> __n;
|
|
vector<result_type> __densities(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __densities[__i];
|
|
__is >> __n;
|
|
vector<result_type> __areas(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __areas[__i];
|
|
if (!__is.fail())
|
|
{
|
|
swap(__x.__p_.__b_, __b);
|
|
swap(__x.__p_.__densities_, __densities);
|
|
swap(__x.__p_.__areas_, __areas);
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
// piecewise_linear_distribution
|
|
|
|
template<class _RealType = double>
|
|
class _LIBCPP_TYPE_VIS_ONLY piecewise_linear_distribution
|
|
{
|
|
public:
|
|
// types
|
|
typedef _RealType result_type;
|
|
|
|
class _LIBCPP_TYPE_VIS_ONLY param_type
|
|
{
|
|
vector<result_type> __b_;
|
|
vector<result_type> __densities_;
|
|
vector<result_type> __areas_;
|
|
public:
|
|
typedef piecewise_linear_distribution distribution_type;
|
|
|
|
param_type();
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
param_type(_InputIteratorB __fB, _InputIteratorB __lB,
|
|
_InputIteratorW __fW);
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
param_type(initializer_list<result_type> __bl, _UnaryOperation __fw);
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
param_type(size_t __nw, result_type __xmin, result_type __xmax,
|
|
_UnaryOperation __fw);
|
|
param_type & operator=(const param_type& __rhs);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> intervals() const {return __b_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> densities() const {return __densities_;}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const param_type& __x, const param_type& __y)
|
|
{return __x.__densities_ == __y.__densities_ && __x.__b_ == __y.__b_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const param_type& __x, const param_type& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
void __init();
|
|
|
|
friend class piecewise_linear_distribution;
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_linear_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_linear_distribution<_RT>& __x);
|
|
};
|
|
|
|
private:
|
|
param_type __p_;
|
|
|
|
public:
|
|
// constructor and reset functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_linear_distribution() {}
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_linear_distribution(_InputIteratorB __fB,
|
|
_InputIteratorB __lB,
|
|
_InputIteratorW __fW)
|
|
: __p_(__fB, __lB, __fW) {}
|
|
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
template<class _UnaryOperation>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_linear_distribution(initializer_list<result_type> __bl,
|
|
_UnaryOperation __fw)
|
|
: __p_(__bl, __fw) {}
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _UnaryOperation>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
piecewise_linear_distribution(size_t __nw, result_type __xmin,
|
|
result_type __xmax, _UnaryOperation __fw)
|
|
: __p_(__nw, __xmin, __xmax, __fw) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit piecewise_linear_distribution(const param_type& __p)
|
|
: __p_(__p) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void reset() {}
|
|
|
|
// generating functions
|
|
template<class _URNG>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type operator()(_URNG& __g)
|
|
{return (*this)(__g, __p_);}
|
|
template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
|
|
|
|
// property functions
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> intervals() const {return __p_.intervals();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
vector<result_type> densities() const {return __p_.densities();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
param_type param() const {return __p_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void param(const param_type& __p) {__p_ = __p;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type min() const {return __p_.__b_.front();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
result_type max() const {return __p_.__b_.back();}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const piecewise_linear_distribution& __x,
|
|
const piecewise_linear_distribution& __y)
|
|
{return __x.__p_ == __y.__p_;}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const piecewise_linear_distribution& __x,
|
|
const piecewise_linear_distribution& __y)
|
|
{return !(__x == __y);}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_linear_distribution<_RT>& __x);
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
friend
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_linear_distribution<_RT>& __x);
|
|
};
|
|
|
|
template<class _RealType>
|
|
typename piecewise_linear_distribution<_RealType>::param_type &
|
|
piecewise_linear_distribution<_RealType>::param_type::operator=
|
|
(const param_type& __rhs)
|
|
{
|
|
// These can throw
|
|
__b_.reserve (__rhs.__b_.size ());
|
|
__densities_.reserve(__rhs.__densities_.size());
|
|
__areas_.reserve (__rhs.__areas_.size());
|
|
|
|
// These can not throw
|
|
__b_ = __rhs.__b_;
|
|
__densities_ = __rhs.__densities_;
|
|
__areas_ = __rhs.__areas_;
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<class _RealType>
|
|
void
|
|
piecewise_linear_distribution<_RealType>::param_type::__init()
|
|
{
|
|
__areas_.assign(__densities_.size() - 1, result_type());
|
|
result_type _Sp = 0;
|
|
for (size_t __i = 0; __i < __areas_.size(); ++__i)
|
|
{
|
|
__areas_[__i] = (__densities_[__i+1] + __densities_[__i]) *
|
|
(__b_[__i+1] - __b_[__i]) * .5;
|
|
_Sp += __areas_[__i];
|
|
}
|
|
for (size_t __i = __areas_.size(); __i > 1;)
|
|
{
|
|
--__i;
|
|
__areas_[__i] = __areas_[__i-1] / _Sp;
|
|
}
|
|
__areas_[0] = 0;
|
|
for (size_t __i = 1; __i < __areas_.size(); ++__i)
|
|
__areas_[__i] += __areas_[__i-1];
|
|
for (size_t __i = 0; __i < __densities_.size(); ++__i)
|
|
__densities_[__i] /= _Sp;
|
|
}
|
|
|
|
template<class _RealType>
|
|
piecewise_linear_distribution<_RealType>::param_type::param_type()
|
|
: __b_(2),
|
|
__densities_(2, 1.0),
|
|
__areas_(1, 0.0)
|
|
{
|
|
__b_[1] = 1;
|
|
}
|
|
|
|
template<class _RealType>
|
|
template<class _InputIteratorB, class _InputIteratorW>
|
|
piecewise_linear_distribution<_RealType>::param_type::param_type(
|
|
_InputIteratorB __fB, _InputIteratorB __lB, _InputIteratorW __fW)
|
|
: __b_(__fB, __lB)
|
|
{
|
|
if (__b_.size() < 2)
|
|
{
|
|
__b_.resize(2);
|
|
__b_[0] = 0;
|
|
__b_[1] = 1;
|
|
__densities_.assign(2, 1.0);
|
|
__areas_.assign(1, 0.0);
|
|
}
|
|
else
|
|
{
|
|
__densities_.reserve(__b_.size());
|
|
for (size_t __i = 0; __i < __b_.size(); ++__i, ++__fW)
|
|
__densities_.push_back(*__fW);
|
|
__init();
|
|
}
|
|
}
|
|
|
|
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _RealType>
|
|
template<class _UnaryOperation>
|
|
piecewise_linear_distribution<_RealType>::param_type::param_type(
|
|
initializer_list<result_type> __bl, _UnaryOperation __fw)
|
|
: __b_(__bl.begin(), __bl.end())
|
|
{
|
|
if (__b_.size() < 2)
|
|
{
|
|
__b_.resize(2);
|
|
__b_[0] = 0;
|
|
__b_[1] = 1;
|
|
__densities_.assign(2, 1.0);
|
|
__areas_.assign(1, 0.0);
|
|
}
|
|
else
|
|
{
|
|
__densities_.reserve(__b_.size());
|
|
for (size_t __i = 0; __i < __b_.size(); ++__i)
|
|
__densities_.push_back(__fw(__b_[__i]));
|
|
__init();
|
|
}
|
|
}
|
|
|
|
#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
|
|
|
|
template<class _RealType>
|
|
template<class _UnaryOperation>
|
|
piecewise_linear_distribution<_RealType>::param_type::param_type(
|
|
size_t __nw, result_type __xmin, result_type __xmax, _UnaryOperation __fw)
|
|
: __b_(__nw == 0 ? 2 : __nw + 1)
|
|
{
|
|
size_t __n = __b_.size() - 1;
|
|
result_type __d = (__xmax - __xmin) / __n;
|
|
__densities_.reserve(__b_.size());
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
{
|
|
__b_[__i] = __xmin + __i * __d;
|
|
__densities_.push_back(__fw(__b_[__i]));
|
|
}
|
|
__b_[__n] = __xmax;
|
|
__densities_.push_back(__fw(__b_[__n]));
|
|
__init();
|
|
}
|
|
|
|
template<class _RealType>
|
|
template<class _URNG>
|
|
_RealType
|
|
piecewise_linear_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
|
|
{
|
|
typedef uniform_real_distribution<result_type> _Gen;
|
|
result_type __u = _Gen()(__g);
|
|
ptrdiff_t __k = _VSTD::upper_bound(__p.__areas_.begin(), __p.__areas_.end(),
|
|
__u) - __p.__areas_.begin() - 1;
|
|
__u -= __p.__areas_[__k];
|
|
const result_type __dk = __p.__densities_[__k];
|
|
const result_type __dk1 = __p.__densities_[__k+1];
|
|
const result_type __deltad = __dk1 - __dk;
|
|
const result_type __bk = __p.__b_[__k];
|
|
if (__deltad == 0)
|
|
return __u / __dk + __bk;
|
|
const result_type __bk1 = __p.__b_[__k+1];
|
|
const result_type __deltab = __bk1 - __bk;
|
|
return (__bk * __dk1 - __bk1 * __dk +
|
|
_VSTD::sqrt(__deltab * (__deltab * __dk * __dk + 2 * __deltad * __u))) /
|
|
__deltad;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os,
|
|
const piecewise_linear_distribution<_RT>& __x)
|
|
{
|
|
__save_flags<_CharT, _Traits> __lx(__os);
|
|
__os.flags(ios_base::dec | ios_base::left | ios_base::fixed |
|
|
ios_base::scientific);
|
|
_CharT __sp = __os.widen(' ');
|
|
__os.fill(__sp);
|
|
size_t __n = __x.__p_.__b_.size();
|
|
__os << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__b_[__i];
|
|
__n = __x.__p_.__densities_.size();
|
|
__os << __sp << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__densities_[__i];
|
|
__n = __x.__p_.__areas_.size();
|
|
__os << __sp << __n;
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__os << __sp << __x.__p_.__areas_[__i];
|
|
return __os;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _RT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
piecewise_linear_distribution<_RT>& __x)
|
|
{
|
|
typedef piecewise_linear_distribution<_RT> _Eng;
|
|
typedef typename _Eng::result_type result_type;
|
|
typedef typename _Eng::param_type param_type;
|
|
__save_flags<_CharT, _Traits> __lx(__is);
|
|
__is.flags(ios_base::dec | ios_base::skipws);
|
|
size_t __n;
|
|
__is >> __n;
|
|
vector<result_type> __b(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __b[__i];
|
|
__is >> __n;
|
|
vector<result_type> __densities(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __densities[__i];
|
|
__is >> __n;
|
|
vector<result_type> __areas(__n);
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
__is >> __areas[__i];
|
|
if (!__is.fail())
|
|
{
|
|
swap(__x.__p_.__b_, __b);
|
|
swap(__x.__p_.__densities_, __densities);
|
|
swap(__x.__p_.__areas_, __areas);
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_RANDOM
|