1// <experimental/source_location> -*- C++ -*-
2
3// Copyright (C) 2015-2018 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 */
28
29#ifndef _GLIBCXX_EXPERIMENTAL_SRCLOC
30#define _GLIBCXX_EXPERIMENTAL_SRCLOC 1
31
32#include <cstdint>
33
34namespace std {
35_GLIBCXX_BEGIN_NAMESPACE_VERSION
36
37namespace experimental {
38inline namespace fundamentals_v2 {
39#define __cpp_lib_experimental_source_location 201505
40
41 struct source_location
42 {
43#ifndef _GLIBCXX_USE_C99_STDINT_TR1
44 private:
45 using uint_least32_t = unsigned;
46 public:
47#endif
48
49 // 14.1.2, source_location creation
50 static constexpr source_location
51 current(const char* __file = __builtin_FILE(),
52 const char* __func = __builtin_FUNCTION(),
53 int __line = __builtin_LINE(),
54 int __col = 0) noexcept
55 {
56 source_location __loc;
57 __loc._M_file = __file;
58 __loc._M_func = __func;
59 __loc._M_line = __line;
60 __loc._M_col = __col;
61 return __loc;
62 }
63
64 constexpr source_location() noexcept
65 : _M_file("unknown"), _M_func(_M_file), _M_line(0), _M_col(0)
66 { }
67
68 // 14.1.3, source_location field access
69 constexpr uint_least32_t line() const noexcept { return _M_line; }
70 constexpr uint_least32_t column() const noexcept { return _M_col; }
71 constexpr const char* file_name() const noexcept { return _M_file; }
72 constexpr const char* function_name() const noexcept { return _M_func; }
73
74 private:
75 const char* _M_file;
76 const char* _M_func;
77 uint_least32_t _M_line;
78 uint_least32_t _M_col;
79 };
80} // namespace fundamentals_v2
81} // namespace experimental
82
83_GLIBCXX_END_NAMESPACE_VERSION
84} // namespace std
85
86#endif
87