1// -*- C++ -*-
  2//===----------------------------------------------------------------------===//
  3//
  4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  5// See https://llvm.org/LICENSE.txt for license information.
  6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  7//
  8//===----------------------------------------------------------------------===//
  9
 10#ifndef _LIBCPP_INITIALIZER_LIST
 11#define _LIBCPP_INITIALIZER_LIST
 12
 13/*
 14    initializer_list synopsis
 15
 16namespace std
 17{
 18
 19template<class E>
 20class initializer_list
 21{
 22public:
 23    typedef E        value_type;
 24    typedef const E& reference;
 25    typedef const E& const_reference;
 26    typedef size_t   size_type;
 27
 28    typedef const E* iterator;
 29    typedef const E* const_iterator;
 30
 31    initializer_list() noexcept; // constexpr in C++14
 32
 33    size_t   size()  const noexcept; // constexpr in C++14
 34    const E* begin() const noexcept; // constexpr in C++14
 35    const E* end()   const noexcept; // constexpr in C++14
 36};
 37
 38template<class E> const E* begin(initializer_list<E> il) noexcept; // constexpr in C++14
 39template<class E> const E* end(initializer_list<E> il) noexcept; // constexpr in C++14
 40
 41}  // std
 42
 43*/
 44
 45#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
 46#  include <__cxx03/__config>
 47#else
 48#  include <__config>
 49#  include <__cstddef/size_t.h>
 50#  include <version>
 51
 52#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 53#    pragma GCC system_header
 54#  endif
 55
 56namespace std // purposefully not versioned
 57{
 58
 59#  ifndef _LIBCPP_CXX03_LANG
 60
 61template <class _Ep>
 62class _LIBCPP_NO_SPECIALIZATIONS initializer_list {
 63  const _Ep* __begin_;
 64  size_t __size_;
 65
 66  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 initializer_list(const _Ep* __b, size_t __s) _NOEXCEPT
 67      : __begin_(__b),
 68        __size_(__s) {}
 69
 70public:
 71  typedef _Ep value_type;
 72  typedef const _Ep& reference;
 73  typedef const _Ep& const_reference;
 74  typedef size_t size_type;
 75
 76  typedef const _Ep* iterator;
 77  typedef const _Ep* const_iterator;
 78
 79  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
 80
 81  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 size_t size() const _NOEXCEPT { return __size_; }
 82
 83  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* begin() const _NOEXCEPT { return __begin_; }
 84
 85  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* end() const _NOEXCEPT { return __begin_ + __size_; }
 86};
 87
 88template <class _Ep>
 89inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* begin(initializer_list<_Ep> __il) _NOEXCEPT {
 90  return __il.begin();
 91}
 92
 93template <class _Ep>
 94inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* end(initializer_list<_Ep> __il) _NOEXCEPT {
 95  return __il.end();
 96}
 97
 98#  endif // !defined(_LIBCPP_CXX03_LANG)
 99
100} // namespace std
101
102#  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
103#    include <cstddef>
104#  endif
105#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
106
107#endif // _LIBCPP_INITIALIZER_LIST