AMDG

Kraus Philipp wrote:

Thanks that was a very big hint.

My code is now:

bio::basic_null_sink<char> l_out;

bio::counter l_counter;

bio::filtering_streambuf< bio::output > l_deflate;

l_deflate.push( bio::gzip_compressor() );

l_deflate.push( boost::ref(l_counter) );

l_deflate.push( l_out );

std::ifstream l_file( p_str1.c_str(), std::ifstream::in | std::ifstream::binary );

bio::copy( l_file, l_deflate );

l_file.close();

l_file.open( p_str2.c_str(), std::ifstream::in | std::ifstream::binary );

===> bio::copy( l_file, l_deflate ); <==== error

l_file.close();

It works perfectly, except the second copy. On this line I get a "segmentation fault" (sorry I can't use the debugger, because the code runs on another system).

I'm guessing that the problem is that copy closes the sink.