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{
61    const _Ep* __begin_;
62    size_t    __size_;
63
64    _LIBCPP_INLINE_VISIBILITY
65    _LIBCPP_CONSTEXPR_SINCE_CXX14
66    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_INLINE_VISIBILITY
80    _LIBCPP_CONSTEXPR_SINCE_CXX14
81    initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
82
83    _LIBCPP_INLINE_VISIBILITY
84    _LIBCPP_CONSTEXPR_SINCE_CXX14
85    size_t    size()  const _NOEXCEPT {return __size_;}
86
87    _LIBCPP_INLINE_VISIBILITY
88    _LIBCPP_CONSTEXPR_SINCE_CXX14
89    const _Ep* begin() const _NOEXCEPT {return __begin_;}
90
91    _LIBCPP_INLINE_VISIBILITY
92    _LIBCPP_CONSTEXPR_SINCE_CXX14
93    const _Ep* end()   const _NOEXCEPT {return __begin_ + __size_;}
94};
95
96template<class _Ep>
97inline _LIBCPP_INLINE_VISIBILITY
98_LIBCPP_CONSTEXPR_SINCE_CXX14
99const _Ep*
100begin(initializer_list<_Ep> __il) _NOEXCEPT
101{
102    return __il.begin();
103}
104
105template<class _Ep>
106inline _LIBCPP_INLINE_VISIBILITY
107_LIBCPP_CONSTEXPR_SINCE_CXX14
108const _Ep*
109end(initializer_list<_Ep> __il) _NOEXCEPT
110{
111    return __il.end();
112}
113
114#endif // !defined(_LIBCPP_CXX03_LANG)
115
116} // namespace std
117
118#endif // _LIBCPP_INITIALIZER_LIST
119