1// -*- C++ -*-
2//===----------------------- initializer_list -----------------------------===//
3//
4//                     The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10
11#ifndef _LIBCPP_INITIALIZER_LIST
12#define _LIBCPP_INITIALIZER_LIST
13
14/*
15    initializer_list synopsis
16
17namespace std
18{
19
20template<class E>
21class initializer_list
22{
23public:
24    typedef E        value_type;
25    typedef const E& reference;
26    typedef const E& const_reference;
27    typedef size_t   size_type;
28
29    typedef const E* iterator;
30    typedef const E* const_iterator;
31
32    initializer_list() noexcept; // constexpr in C++14
33
34    size_t   size()  const noexcept; // constexpr in C++14
35    const E* begin() const noexcept; // constexpr in C++14
36    const E* end()   const noexcept; // constexpr in C++14
37};
38
39template<class E> const E* begin(initializer_list<E> il) noexcept; // constexpr in C++14
40template<class E> const E* end(initializer_list<E> il) noexcept; // constexpr in C++14
41
42}  // std
43
44*/
45
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_HAS_NO_GENERALIZED_INITIALIZERS
57
58template<class _Ep>
59class _LIBCPP_TYPE_VIS_ONLY initializer_list
60{
61    const _Ep* __begin_;
62    size_t    __size_;
63
64    _LIBCPP_ALWAYS_INLINE
65    _LIBCPP_CONSTEXPR_AFTER_CXX11
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_ALWAYS_INLINE
80    _LIBCPP_CONSTEXPR_AFTER_CXX11
81    initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
82
83    _LIBCPP_ALWAYS_INLINE
84    _LIBCPP_CONSTEXPR_AFTER_CXX11
85    size_t    size()  const _NOEXCEPT {return __size_;}
86
87    _LIBCPP_ALWAYS_INLINE
88    _LIBCPP_CONSTEXPR_AFTER_CXX11
89    const _Ep* begin() const _NOEXCEPT {return __begin_;}
90
91    _LIBCPP_ALWAYS_INLINE
92    _LIBCPP_CONSTEXPR_AFTER_CXX11
93    const _Ep* end()   const _NOEXCEPT {return __begin_ + __size_;}
94};
95
96template<class _Ep>
97inline _LIBCPP_INLINE_VISIBILITY
98_LIBCPP_CONSTEXPR_AFTER_CXX11
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_AFTER_CXX11
108const _Ep*
109end(initializer_list<_Ep> __il) _NOEXCEPT
110{
111    return __il.end();
112}
113
114#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
115
116}  // std
117
118#endif  // _LIBCPP_INITIALIZER_LIST
119