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#include <__assert> // all public C++ headers provide the assertion handler
46#include <__config>
47#include <cstddef>
48
49#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
50#  pragma GCC system_header
51#endif
52
53namespace std // purposefully not versioned
54{
55
56#ifndef _LIBCPP_CXX03_LANG
57
58template <class _Ep>
59class _LIBCPP_TEMPLATE_VIS initializer_list {
60  const _Ep* __begin_;
61  size_t __size_;
62
63  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 initializer_list(const _Ep* __b, size_t __s) _NOEXCEPT
64      : __begin_(__b),
65        __size_(__s) {}
66
67public:
68  typedef _Ep value_type;
69  typedef const _Ep& reference;
70  typedef const _Ep& const_reference;
71  typedef size_t size_type;
72
73  typedef const _Ep* iterator;
74  typedef const _Ep* const_iterator;
75
76  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
77
78  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 size_t size() const _NOEXCEPT { return __size_; }
79
80  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* begin() const _NOEXCEPT { return __begin_; }
81
82  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* end() const _NOEXCEPT { return __begin_ + __size_; }
83};
84
85template <class _Ep>
86inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* begin(initializer_list<_Ep> __il) _NOEXCEPT {
87  return __il.begin();
88}
89
90template <class _Ep>
91inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Ep* end(initializer_list<_Ep> __il) _NOEXCEPT {
92  return __il.end();
93}
94
95#endif // !defined(_LIBCPP_CXX03_LANG)
96
97} // namespace std
98
99#endif // _LIBCPP_INITIALIZER_LIST
100