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Add source_location::to_string

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This commit is contained in:
Peter Dimov
2021-09-19 00:45:15 +03:00
parent 6aabfebae6
commit b7a43990e6
2 changed files with 54 additions and 23 deletions
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65
include/boost/assert/source_location.hpp
View File

@ -1,16 +1,17 @@
#ifndef BOOST_ASSERT_SOURCE_LOCATION_HPP_INCLUDED
#define BOOST_ASSERT_SOURCE_LOCATION_HPP_INCLUDED
// http://www.boost.org/libs/assert
// http://www.boost.org/libs/assert
//
// Copyright 2019 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// Copyright 2019, 2021 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/current_function.hpp>
#include <boost/config.hpp>
#include <boost/cstdint.hpp>
#include <iosfwd>
#include <string>
namespace boost
{
@ -53,28 +54,48 @@ public:
{
return column_;
}
#if defined(BOOST_MSVC)
# pragma warning( push )
# pragma warning( disable: 4996 )
#endif
std::string to_string() const
{
if( line() == 0 )
{
return "(unknown source location)";
}
std::string r = file_name();
char buffer[ 16 ];
sprintf( buffer, ":%ld", static_cast<long>( line() ) );
r += buffer;
if( column() )
{
sprintf( buffer, ":%ld", static_cast<long>( column() ) );
r += buffer;
}
r += " in function '";
r += function_name();
r += '\'';
return r;
}
#if defined(BOOST_MSVC)
# pragma warning( pop )
#endif
};
template<class E, class T> std::basic_ostream<E, T> & operator<<( std::basic_ostream<E, T> & os, source_location const & loc )
{
os.width( 0 );
if( loc.line() == 0 )
{
os << "(unknown source location)";
}
else
{
os << loc.file_name() << ':' << loc.line();
if( loc.column() )
{
os << ':' << loc.column();
}
os << ": in function '" << loc.function_name() << '\'';
}
os << loc.to_string();
return os;
}

12
test/source_location_test3.cpp
View File

@ -8,6 +8,11 @@
int main()
{
{
boost::source_location loc;
BOOST_TEST_EQ( loc.to_string(), std::string( "(unknown source location)" ) );
}
{
boost::source_location loc;
@ -17,13 +22,18 @@ int main()
BOOST_TEST_EQ( os.str(), std::string( "(unknown source location)" ) );
}
{
boost::source_location loc = BOOST_CURRENT_LOCATION;
BOOST_TEST_EQ( loc.to_string(), std::string( __FILE__ ) + ":26 in function '" + BOOST_CURRENT_FUNCTION + "'" );
}
{
boost::source_location loc = BOOST_CURRENT_LOCATION;
std::ostringstream os;
os << loc;
BOOST_TEST_EQ( os.str(), std::string( __FILE__ ) + ":21: in function '" + BOOST_CURRENT_FUNCTION + "'" );
BOOST_TEST_EQ( os.str(), std::string( __FILE__ ) + ":31 in function '" + BOOST_CURRENT_FUNCTION + "'" );
}
return boost::report_errors();