forked from OSchip/llvm-project
260 lines
7.9 KiB
C++
260 lines
7.9 KiB
C++
// -*- C++ -*-
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//===---------------------------- stack -----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_STACK
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#define _LIBCPP_STACK
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/*
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stack synopsis
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namespace std
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{
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template <class T, class Container = deque<T>>
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class stack
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{
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public:
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typedef Container container_type;
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typedef typename container_type::value_type value_type;
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typedef typename container_type::reference reference;
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typedef typename container_type::const_reference const_reference;
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typedef typename container_type::size_type size_type;
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protected:
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container_type c;
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public:
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explicit stack();
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explicit stack(const container_type& c);
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explicit stack(container_type&& c);
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stack(stack&& s);
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stack& operator=(stack&& s);
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template <class Alloc> explicit stack(const Alloc& a);
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template <class Alloc> stack(const container_type& c, const Alloc& a);
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template <class Alloc> stack(container_type&& c, const Alloc& a);
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template <class Alloc> stack(stack&& c, const Alloc& a);
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bool empty() const;
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size_type size() const;
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reference top();
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const_reference top() const;
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void push(const value_type& x);
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void push(value_type&& x);
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template <class... Args> void emplace(Args&&... args);
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void pop();
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void swap(stack& c);
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};
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template <class T, class Container>
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bool operator==(const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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bool operator< (const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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bool operator!=(const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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bool operator> (const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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bool operator>=(const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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bool operator<=(const stack<T, Container>& x, const stack<T, Container>& y);
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template <class T, class Container>
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void swap(stack<T, Container>& x, stack<T, Container>& y);
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} // std
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*/
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#include <__config>
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#include <deque>
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#pragma GCC system_header
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp, class _Container> class stack;
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template <class _Tp, class _Container>
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bool
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operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);
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template <class _Tp, class _Container>
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bool
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operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);
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template <class _Tp, class _Container = deque<_Tp> >
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class _LIBCPP_VISIBLE stack
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{
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public:
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typedef _Container container_type;
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typedef typename container_type::value_type value_type;
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typedef typename container_type::reference reference;
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typedef typename container_type::const_reference const_reference;
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typedef typename container_type::size_type size_type;
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protected:
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container_type c;
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public:
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_LIBCPP_INLINE_VISIBILITY
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stack() : c() {}
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_LIBCPP_INLINE_VISIBILITY
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explicit stack(const container_type& __c) : c(__c) {}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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_LIBCPP_INLINE_VISIBILITY
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explicit stack(container_type&& __c) : c(_STD::move(__c)) {}
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_LIBCPP_INLINE_VISIBILITY
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stack(stack&& __s) : c(_STD::move(__s.c)) {}
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_LIBCPP_INLINE_VISIBILITY
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stack& operator=(stack&& __s) {c = _STD::move(__s.c); return *this;}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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template <class _Alloc>
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_LIBCPP_INLINE_VISIBILITY
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explicit stack(const _Alloc& __a,
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typename enable_if<uses_allocator<container_type,
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_Alloc>::value>::type* = 0)
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: c(__a) {}
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template <class _Alloc>
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_LIBCPP_INLINE_VISIBILITY
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stack(const container_type& __c, const _Alloc& __a,
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typename enable_if<uses_allocator<container_type,
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_Alloc>::value>::type* = 0)
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: c(__c, __a) {}
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template <class _Alloc>
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_LIBCPP_INLINE_VISIBILITY
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stack(const stack& __s, const _Alloc& __a,
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typename enable_if<uses_allocator<container_type,
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_Alloc>::value>::type* = 0)
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: c(__s.c, __a) {}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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template <class _Alloc>
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_LIBCPP_INLINE_VISIBILITY
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stack(container_type&& __c, const _Alloc& __a,
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typename enable_if<uses_allocator<container_type,
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_Alloc>::value>::type* = 0)
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: c(_STD::move(__c), __a) {}
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template <class _Alloc>
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_LIBCPP_INLINE_VISIBILITY
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stack(stack&& __s, const _Alloc& __a,
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typename enable_if<uses_allocator<container_type,
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_Alloc>::value>::type* = 0)
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: c(_STD::move(__s.c), __a) {}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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_LIBCPP_INLINE_VISIBILITY
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bool empty() const {return c.empty();}
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_LIBCPP_INLINE_VISIBILITY
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size_type size() const {return c.size();}
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_LIBCPP_INLINE_VISIBILITY
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reference top() {return c.back();}
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_LIBCPP_INLINE_VISIBILITY
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const_reference top() const {return c.back();}
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_LIBCPP_INLINE_VISIBILITY
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void push(const value_type& __v) {c.push_back(__v);}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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_LIBCPP_INLINE_VISIBILITY
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void push(value_type&& __v) {c.push_back(_STD::move(__v));}
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#ifndef _LIBCPP_HAS_NO_VARIADICS
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template <class... _Args>
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_LIBCPP_INLINE_VISIBILITY
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void emplace(_Args&&... __args)
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{c.emplace_back(_STD::forward<_Args>(__args)...);}
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#endif // _LIBCPP_HAS_NO_VARIADICS
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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_LIBCPP_INLINE_VISIBILITY
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void pop() {c.pop_back();}
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_LIBCPP_INLINE_VISIBILITY
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void swap(stack& __s)
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{
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using _STD::swap;
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swap(c, __s.c);
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}
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template <class T1, class _C1>
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friend
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bool
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operator==(const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);
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template <class T1, class _C1>
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friend
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bool
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operator< (const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);
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};
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return __x.c == __y.c;
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return __x.c < __y.c;
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator!=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return !(__x == __y);
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator> (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return __y < __x;
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator>=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return !(__x < __y);
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator<=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
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{
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return !(__y < __x);
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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void
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swap(stack<_Tp, _Container>& __x, stack<_Tp, _Container>& __y)
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{
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__x.swap(__y);
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}
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template <class _Tp, class _Container, class _Alloc>
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struct _LIBCPP_VISIBLE uses_allocator<stack<_Tp, _Container>, _Alloc>
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: public uses_allocator<_Container, _Alloc>
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{
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STACK
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