108 lines
3.9 KiB
C++
108 lines
3.9 KiB
C++
/**
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This file is a part of rexy's general purpose library
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Copyright (C) 2022 rexy712
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef REXY_COMPAT_17_SOURCE_LOCATION_HPP
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#define REXY_COMPAT_17_SOURCE_LOCATION_HPP
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#include <cstdint> //uint_least32_t
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//clang bug: https://bugs.llvm.org/show_bug.cgi?id=48886
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#if __cplusplus >= 202002L && !defined(__clang__)
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#define CONSTEVAL consteval
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#else
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#define CONSTEVAL constexpr
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#endif
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namespace rexy::compat::cpp17{
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class source_location
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{
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private:
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const char* m_file;
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const char* m_func;
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uint_least32_t m_line;
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uint_least32_t m_column;
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public:
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constexpr source_location(void)noexcept;
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constexpr source_location(const source_location&);
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constexpr source_location(source_location&&)noexcept;
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constexpr uint_least32_t line(void)const noexcept;
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constexpr uint_least32_t column(void)const noexcept;
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constexpr const char* file_name(void)const noexcept;
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constexpr const char* function_name(void)const noexcept;
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public:
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#if (defined(__clang__) && (__clang_major__ >= 9)) || (defined(_MSC_VER) && (_MSC_VER >= 1926))
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static CONSTEVAL source_location current(uint_least32_t line = __builtin_LINE(),
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uint_least32_t col = __builtin_COLUMN(),
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const char* file = __builtin_FILE(),
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const char* func = __builtin_FUNCTION())noexcept;
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#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
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static CONSTEVAL source_location current(uint_least32_t line = __builtin_LINE(),
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uint_least32_t col = 0,
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const char* file = __builtin_FILE(),
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const char* func = __builtin_FUNCTION())noexcept;
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#else
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static CONSTEVAL source_location current(uint_least32_t line = 0,
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uint_least32_t col = 0,
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const char* file = "unknown",
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const char* func = "unknown")noexcept;
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#endif
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private:
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constexpr source_location(uint_least32_t line, uint_least32_t col, const char* file, const char* func)noexcept;
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};
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constexpr source_location::source_location(void)noexcept:
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source_location(0, 0, "unknown", "unknown"){}
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constexpr source_location::source_location(const source_location& s):
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source_location(s.m_line, s.m_column, s.m_file, s.m_func){}
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constexpr source_location::source_location(source_location&& s)noexcept:
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source_location(s.m_line, s.m_column, s.m_file, s.m_func){}
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constexpr source_location::source_location(uint_least32_t line, uint_least32_t col, const char* file, const char* func)noexcept:
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m_file(file),
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m_func(func),
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m_line(line),
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m_column(col){}
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constexpr uint_least32_t source_location::line(void)const noexcept{
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return m_line;
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}
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constexpr uint_least32_t source_location::column(void)const noexcept{
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return m_column;
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}
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constexpr const char* source_location::file_name(void)const noexcept{
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return m_file;
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}
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constexpr const char* source_location::function_name(void)const noexcept{
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return m_func;
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}
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CONSTEVAL source_location source_location::current(uint_least32_t line, uint_least32_t col, const char* file, const char* func)noexcept{
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return source_location(line, col, file, func);
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}
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#undef CONSTEVAL
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}
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#endif
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