extracting compressed file with boost::iostreams

Question

I'm searching for a way to extract a file in c++ by using the boost::iostreams classes.

There is an example in the boost documentation. But it outputs the content of the compressed file to std::cout. I'm looking for a way to extract it to a file structure.

Does anybody know how to do that?

Thanks!

Answer 1

Boost.IOStreams does not support compressed archives, just single compressed files. If you want to extract a .zip or .tar file to a directory tree, you'll need to use a different library.

Answer 2

The example in the documentation shows how to decompress the file and push the result to another stream.

If you want the output to be directed to an in-memory array instead, you can use a stream of type boost::iostreams::stream<boost::iostreams::array_source>instead.

That is basically a stream-wrapper around an array.

I'm not sure what you mean when you say you want the output in "a file structure" though.