[Boost-users] [iostreams] Question about correct opened file

13 Feb 2008

      Hi,

I've the following code:

namespace io = boost::iostreams;

bool foo::open( const std::string& file )
{
     io::filtering_istream is;

     is.push( my_line_filter() );
     is.push( io::file_source( file ) );

     // ??? how to check success

     do {
         std::string line;
         std::getline(is, line);
         std::cout << line << std::endl;
     } while (!is.eof());

     return true;
}

Well, how can I check that the file is opened correct/the stream is 
valid? is_open() and good() seems not supported? Or I'm wrong? Giving a 
wrong name does nothings.

Thanks,
Olaf