libstdc++
stack
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1 // <stack> -*- C++ -*-
2 
3 // Copyright (C) 2001-2025 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /*
26  *
27  * Copyright (c) 1994
28  * Hewlett-Packard Company
29  *
30  * Permission to use, copy, modify, distribute and sell this software
31  * and its documentation for any purpose is hereby granted without fee,
32  * provided that the above copyright notice appear in all copies and
33  * that both that copyright notice and this permission notice appear
34  * in supporting documentation. Hewlett-Packard Company makes no
35  * representations about the suitability of this software for any
36  * purpose. It is provided "as is" without express or implied warranty.
37  *
38  *
39  * Copyright (c) 1996,1997
40  * Silicon Graphics Computer Systems, Inc.
41  *
42  * Permission to use, copy, modify, distribute and sell this software
43  * and its documentation for any purpose is hereby granted without fee,
44  * provided that the above copyright notice appear in all copies and
45  * that both that copyright notice and this permission notice appear
46  * in supporting documentation. Silicon Graphics makes no
47  * representations about the suitability of this software for any
48  * purpose. It is provided "as is" without express or implied warranty.
49  */
50 
51 /** @file include/stack
52  * This is a Standard C++ Library header.
53  */
54 
55 #ifndef _GLIBCXX_STACK
56 #define _GLIBCXX_STACK 1
57 
58 #ifdef _GLIBCXX_SYSHDR
59 #pragma GCC system_header
60 #endif
61 
62 #include <bits/requires_hosted.h> // containers
63 
64 #define __glibcxx_want_adaptor_iterator_pair_constructor
65 #define __glibcxx_want_containers_ranges
66 #include <bits/version.h>
67 
68 #include <deque>
69 #include <bits/stl_stack.h>
70 
71 #ifdef __glibcxx_format_ranges // C++ >= 23 && HOSTED
72 #include <bits/formatfwd.h>
73 
74 namespace std _GLIBCXX_VISIBILITY(default)
75 {
76 _GLIBCXX_BEGIN_NAMESPACE_VERSION
77  // Standard does not constrain accepted _CharT, we do so we can
78  // befriend specializations.
79  template<__format::__char _CharT, typename _Tp,
80  formattable<_CharT> _Container>
81  struct formatter<stack<_Tp, _Container>, _CharT>
82  {
83  private:
84  using __maybe_const_adaptor
85  = __conditional_t<
86  __format::__const_formattable_range<_Container, _CharT>,
87  const stack<_Tp, _Container>, stack<_Tp, _Container>>;
88 
89  public:
90  // Standard declares this as template accepting unconstrained
91  // ParseContext type.
92  constexpr typename basic_format_parse_context<_CharT>::iterator
93  parse(basic_format_parse_context<_CharT>& __pc)
94  { return _M_f.parse(__pc); }
95 
96  // Standard declares this as template accepting unconstrained
97  // FormatContext type.
98  template<typename _Out>
99  typename basic_format_context<_Out, _CharT>::iterator
100  format(__maybe_const_adaptor& __a,
101  basic_format_context<_Out, _CharT>& __fc) const
102  { return _M_f.format(__a.c, __fc); }
103 
104  private:
105  // Standard uses formatter<ref_view<_Container>, _CharT>.
106  range_formatter<_Tp, _CharT> _M_f;
107  };
108 _GLIBCXX_END_NAMESPACE_VERSION
109 } // namespace std
110 #endif // __glibcxx_format_ranges
111 
112 
113 #endif /* _GLIBCXX_STACK */