164 lines
4.3 KiB
C++
Executable File
164 lines
4.3 KiB
C++
Executable File
#ifndef BOOST_ASSERT_SOURCE_LOCATION_HPP_INCLUDED
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#define BOOST_ASSERT_SOURCE_LOCATION_HPP_INCLUDED
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// http://www.boost.org/libs/assert
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//
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// Copyright 2019, 2021 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/current_function.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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#include <boost/cstdint.hpp>
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#include <iosfwd>
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#include <string>
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#include <cstdio>
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#include <cstring>
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#if defined(__cpp_lib_source_location) && __cpp_lib_source_location >= 201907L
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# include <source_location>
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#endif
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namespace boost
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{
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struct source_location
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{
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private:
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char const * file_;
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char const * function_;
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boost::uint_least32_t line_;
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boost::uint_least32_t column_;
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public:
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BOOST_CONSTEXPR source_location() BOOST_NOEXCEPT: file_( "" ), function_( "" ), line_( 0 ), column_( 0 )
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{
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}
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BOOST_CONSTEXPR source_location( char const * file, boost::uint_least32_t ln, char const * function, boost::uint_least32_t col = 0 ) BOOST_NOEXCEPT: file_( file ), function_( function ), line_( ln ), column_( col )
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{
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}
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#if defined(__cpp_lib_source_location) && __cpp_lib_source_location >= 201907L
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BOOST_CONSTEXPR source_location( std::source_location const& loc ) BOOST_NOEXCEPT: file_( loc.file_name() ), function_( loc.function_name() ), line_( loc.line() ), column_( loc.column() )
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{
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}
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#endif
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BOOST_CONSTEXPR char const * file_name() const BOOST_NOEXCEPT
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{
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return file_;
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}
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BOOST_CONSTEXPR char const * function_name() const BOOST_NOEXCEPT
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{
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return function_;
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}
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BOOST_CONSTEXPR boost::uint_least32_t line() const BOOST_NOEXCEPT
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{
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return line_;
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}
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BOOST_CONSTEXPR boost::uint_least32_t column() const BOOST_NOEXCEPT
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{
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return column_;
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}
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#if defined(BOOST_MSVC)
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# pragma warning( push )
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# pragma warning( disable: 4996 )
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#endif
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std::string to_string() const
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{
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unsigned long ln = line();
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if( ln == 0 )
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{
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return "(unknown source location)";
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}
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std::string r = file_name();
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char buffer[ 16 ];
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std::sprintf( buffer, ":%lu", ln );
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r += buffer;
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unsigned long co = column();
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if( co )
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{
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std::sprintf( buffer, ":%lu", co );
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r += buffer;
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}
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char const* fn = function_name();
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if( *fn != 0 )
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{
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r += " in function '";
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r += fn;
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r += '\'';
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}
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return r;
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}
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#if defined(BOOST_MSVC)
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# pragma warning( pop )
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#endif
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};
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template<class E, class T> std::basic_ostream<E, T> & operator<<( std::basic_ostream<E, T> & os, source_location const & loc )
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{
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os << loc.to_string();
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return os;
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}
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} // namespace boost
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#if defined(BOOST_DISABLE_CURRENT_LOCATION)
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# define BOOST_CURRENT_LOCATION ::boost::source_location()
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#elif defined(BOOST_MSVC) && BOOST_MSVC >= 1926
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// std::source_location::current() is available in -std:c++20, but fails with consteval errors before 19.31, and doesn't produce
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// the correct result under 19.31, so prefer the built-ins
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# define BOOST_CURRENT_LOCATION ::boost::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION(), __builtin_COLUMN())
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#elif defined(__cpp_lib_source_location) && __cpp_lib_source_location >= 201907L
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# define BOOST_CURRENT_LOCATION ::boost::source_location(::std::source_location::current())
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#elif defined(BOOST_CLANG) && BOOST_CLANG_VERSION >= 90000
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# define BOOST_CURRENT_LOCATION ::boost::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION(), __builtin_COLUMN())
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#elif defined(BOOST_GCC) && BOOST_GCC >= 70000
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// The built-ins are available in 4.8+, but are not constant expressions until 7
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# define BOOST_CURRENT_LOCATION ::boost::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION())
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#elif defined(BOOST_GCC) && BOOST_GCC >= 50000
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// __PRETTY_FUNCTION__ is allowed outside functions under GCC, but 4.x suffers from codegen bugs
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# define BOOST_CURRENT_LOCATION ::boost::source_location(__FILE__, __LINE__, __PRETTY_FUNCTION__)
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#else
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// __func__ macros aren't allowed outside functions, but BOOST_CURRENT_LOCATION is
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# define BOOST_CURRENT_LOCATION ::boost::source_location(__FILE__, __LINE__, "")
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#endif
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#endif // #ifndef BOOST_ASSERT_SOURCE_LOCATION_HPP_INCLUDED
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