1// <experimental/source_location> -*- C++ -*-
2
3// Copyright (C) 2015-2023 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/** @file experimental/source_location
26 * This is a TS C++ Library header.
27 * @ingroup libfund-ts
28 */
29
30#ifndef _GLIBCXX_EXPERIMENTAL_SRCLOC
31#define _GLIBCXX_EXPERIMENTAL_SRCLOC 1
32
33#include <bits/requires_hosted.h> // experimental is currently omitted
34
35#if __cplusplus >= 201402L
36#include <cstdint>
37
38namespace std {
39_GLIBCXX_BEGIN_NAMESPACE_VERSION
40
41namespace experimental {
42inline namespace fundamentals_v2 {
43#define __cpp_lib_experimental_source_location 201505
44
45 struct source_location
46 {
47#ifndef _GLIBCXX_USE_C99_STDINT_TR1
48 private:
49 using uint_least32_t = unsigned;
50 public:
51#endif
52
53 // 14.1.2, source_location creation
54 static constexpr source_location
55 current(const char* __file = __builtin_FILE(),
56 const char* __func = __builtin_FUNCTION(),
57 int __line = __builtin_LINE(),
58 int __col = 0) noexcept
59 {
60 source_location __loc;
61 __loc._M_file = __file;
62 __loc._M_func = __func;
63 __loc._M_line = __line;
64 __loc._M_col = __col;
65 return __loc;
66 }
67
68 constexpr source_location() noexcept
69 : _M_file("unknown"), _M_func(_M_file), _M_line(0), _M_col(0)
70 { }
71
72 // 14.1.3, source_location field access
73 constexpr uint_least32_t line() const noexcept { return _M_line; }
74 constexpr uint_least32_t column() const noexcept { return _M_col; }
75 constexpr const char* file_name() const noexcept { return _M_file; }
76 constexpr const char* function_name() const noexcept { return _M_func; }
77
78 private:
79 const char* _M_file;
80 const char* _M_func;
81 uint_least32_t _M_line;
82 uint_least32_t _M_col;
83 };
84} // namespace fundamentals_v2
85} // namespace experimental
86
87_GLIBCXX_END_NAMESPACE_VERSION
88} // namespace std
89
90#endif // C++14
91#endif // _GLIBCXX_EXPERIMENTAL_SRCLOC
92

source code of include/c++/13/experimental/source_location