llvm-project/libcxx/include/initializer_list

100 lines
2.2 KiB
C++

// -*- C++ -*-
//===----------------------- initializer_list -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_INITIALIZER_LIST
#define _LIBCPP_INITIALIZER_LIST
/*
initializer_list synopsis
namespace std
{
template<class E>
class initializer_list
{
public:
typedef E value_type;
typedef const E& reference;
typedef const E& const_reference;
typedef size_t size_type;
typedef const E* iterator;
typedef const E* const_iterator;
initializer_list() noexcept;
size_t size() const noexcept;
const E* begin() const noexcept;
const E* end() const noexcept;
};
template<class E> const E* begin(initializer_list<E> il) noexcept;
template<class E> const E* end(initializer_list<E> il) noexcept;
} // std
*/
#include <__config>
#include <cstddef>
#pragma GCC system_header
namespace std // purposefully not versioned
{
template<class _E>
class _LIBCPP_VISIBLE initializer_list
{
const _E* __begin_;
size_t __size_;
_LIBCPP_ALWAYS_INLINE
initializer_list(const _E* __b, size_t __s) _NOEXCEPT
: __begin_(__b),
__size_(__s)
{}
public:
typedef _E value_type;
typedef const _E& reference;
typedef const _E& const_reference;
typedef size_t size_type;
typedef const _E* iterator;
typedef const _E* const_iterator;
_LIBCPP_ALWAYS_INLINE initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
_LIBCPP_ALWAYS_INLINE size_t size() const _NOEXCEPT {return __size_;}
_LIBCPP_ALWAYS_INLINE const _E* begin() const _NOEXCEPT {return __begin_;}
_LIBCPP_ALWAYS_INLINE const _E* end() const _NOEXCEPT {return __begin_ + __size_;}
};
template<class _E>
inline _LIBCPP_INLINE_VISIBILITY
const _E*
begin(initializer_list<_E> __il) _NOEXCEPT
{
return __il.begin();
}
template<class _E>
inline _LIBCPP_INLINE_VISIBILITY
const _E*
end(initializer_list<_E> __il) _NOEXCEPT
{
return __il.end();
}
} // std
#endif // _LIBCPP_INITIALIZER_LIST