On 7/25/13 8:22 PM, "Larry Evans"
Instead of someStream, try myFile, and see if the resulting hello.z is what you want.
Larry -- I should have mentioned: I TRIED exactly that: myFile << "some text I want to be compressed"; And in that case, the text DOES end up in the file — but UNCOMPRESSED. Apparently, that bypasses the filtering_streambuf. I'm beginning to wonder if 1) it's not possible, or 2) I should try to contact the original authors of that class for their insight. I'm getting the sense this isn't one of the more commonly-understood areas of of the Boost libraries. One additional note: While I am linking in the ZLIB libraries and including their headers, I don't believe I have ANY Boost binaries linked in — only headers that are relevant. But — I'm compiling, linking and executing… Stephen -- On 07/25/13 19:37, Stephen Greenfield wrote: Partially asked in another question, but so far unanswered: Once I create a filtering_streambuf that is connected to the zlib_compressor() and the output file, how do I then construct an object that can accept data from the Stream Insertion Operator? void CompressUsingFilteringStreambuf() { std::ofstream myFile("hello.z", std::ios_base::out | std::ios_base::binary); boost::iostreams::filtering_streambufboost::iostreams::output out; out.push(boost::iostreams::zlib_compressor()); out.push(myFile); // MY QUESTION: How can I use the "stream insertion" operator (<<) // to go through the filtering_streambuf // and place compressed text into myFile? // HOW DO I CREATE someStream? someStream << "text I want to be compressed and end up in the file..."; myFile.close(); } I have scoured the documentation and the web looking for the answer -- and come up empty. Stephen _______________________________________________ Boost-users mailing list Boost-users@lists.boost.orgmailto:Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users