https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90646
--- Comment #3 from myLC at gmx dot net ---
(In reply to Andrew Pinski from comment #2)
> Can you provide a compilable example?
Good point. The example works, hence the problem seems to be somewhere else:
#include <optional>
#include <iostream>
#include <fstream>
#include <filesystem>
std::optional< std::string > read( const std::filesystem::path &path, const
std::string &filename ) {
std::string s;
if( !filename.empty() ) {
std::filesystem::path file( path );
file /= filename;
if( std::filesystem::exists( file ) ) {
std::ifstream input( std::filesystem::absolute( file )
);
std::stringstream buffer;
buffer << input.rdbuf();
if( input.bad() )
goto errout;
s = buffer.str();
}
} else {
errout: return {};
}
return s;
}
int main( int argc, char **argv ) {
std::string read_write_test;
if( auto rwt = read( "./", argv[ 0 ] ) )
read_write_test = *rwt;
if( !read_write_test.empty() )
std::cout << "fine" << std::endl;
return 0;
}
I need to investigate this further...
