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
108