On 7/25/13 8:22 PM, "Larry Evans" <cppljevans@suddenlink.net> wrote:

> 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

filtering_streambuf that is connected to the zlib_compressor() and the

how do I then construct an object that can accept data from the Stream

void CompressUsingFilteringStreambuf()

std::ofstream myFile("hello.z", std::ios_base::out |

std::ios_base::binary);

boost::iostreams::filtering_streambuf<boost::iostreams::output> out;

out.push(boost::iostreams::zlib_compressor());

// 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

I have scoured the documentation and the web looking for the answer -- and

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