1// <experimental/source_location> -*- C++ -*-
2
3// Copyright (C) 2015-2021 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#if __cplusplus >= 201402L
34#include <cstdint>
35
36namespace std {
37_GLIBCXX_BEGIN_NAMESPACE_VERSION
38
39namespace experimental {
40inline namespace fundamentals_v2 {
41#define __cpp_lib_experimental_source_location 201505
42
43 struct source_location
44 {
45#ifndef _GLIBCXX_USE_C99_STDINT_TR1
46 private:
47 using uint_least32_t = unsigned;
48 public:
49#endif
50
51 // 14.1.2, source_location creation
52 static constexpr source_location
53 current(const char* __file = __builtin_FILE(),
54 const char* __func = __builtin_FUNCTION(),
55 int __line = __builtin_LINE(),
56 int __col = 0) noexcept
57 {
58 source_location __loc;
59 __loc._M_file = __file;
60 __loc._M_func = __func;
61 __loc._M_line = __line;
62 __loc._M_col = __col;
63 return __loc;
64 }
65
66 constexpr source_location() noexcept
67 : _M_file("unknown"), _M_func(_M_file), _M_line(0), _M_col(0)
68 { }
69
70 // 14.1.3, source_location field access
71 constexpr uint_least32_t line() const noexcept { return _M_line; }
72 constexpr uint_least32_t column() const noexcept { return _M_col; }
73 constexpr const char* file_name() const noexcept { return _M_file; }
74 constexpr const char* function_name() const noexcept { return _M_func; }
75
76 private:
77 const char* _M_file;
78 const char* _M_func;
79 uint_least32_t _M_line;
80 uint_least32_t _M_col;
81 };
82} // namespace fundamentals_v2
83} // namespace experimental
84
85_GLIBCXX_END_NAMESPACE_VERSION
86} // namespace std
87
88#endif // C++14
89#endif // _GLIBCXX_EXPERIMENTAL_SRCLOC
90

source code of include/c++/11/experimental/source_location