1// <experimental/source_location> -*- C++ -*-
2
3// Copyright (C) 2015-2019 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#if __cplusplus >= 201402L
33#include <cstdint>
34
35namespace std {
36_GLIBCXX_BEGIN_NAMESPACE_VERSION
37
38namespace experimental {
39inline namespace fundamentals_v2 {
40#define __cpp_lib_experimental_source_location 201505
41
42  struct source_location
43  {
44#ifndef _GLIBCXX_USE_C99_STDINT_TR1
45  private:
46    using uint_least32_t = unsigned;
47  public:
48#endif
49
50    // 14.1.2, source_location creation
51    static constexpr source_location
52    current(const char* __file = __builtin_FILE(),
53	    const char* __func = __builtin_FUNCTION(),
54	    int __line = __builtin_LINE(),
55	    int __col = 0) noexcept
56    {
57      source_location __loc;
58      __loc._M_file = __file;
59      __loc._M_func = __func;
60      __loc._M_line = __line;
61      __loc._M_col = __col;
62      return __loc;
63    }
64
65    constexpr source_location() noexcept
66    : _M_file("unknown"), _M_func(_M_file), _M_line(0), _M_col(0)
67    { }
68
69    // 14.1.3, source_location field access
70    constexpr uint_least32_t line() const noexcept { return _M_line; }
71    constexpr uint_least32_t column() const noexcept { return _M_col; }
72    constexpr const char* file_name() const noexcept { return _M_file; }
73    constexpr const char* function_name() const noexcept { return _M_func; }
74
75  private:
76    const char* _M_file;
77    const char* _M_func;
78    uint_least32_t _M_line;
79    uint_least32_t _M_col;
80  };
81} // namespace fundamentals_v2
82} // namespace experimental
83
84_GLIBCXX_END_NAMESPACE_VERSION
85} // namespace std
86
87#endif // C++14
88#endif // _GLIBCXX_EXPERIMENTAL_SRCLOC
89