Re: [Boost-users] [iostreams] Some basic questions about filtering_stream

Jens,

to 1: Make your functions take a std::ostream& reference, that way you are not bound to the streamtype.

to 2: A streambuf is not a stream, its a buffer for a stream, please consult the documentation for usage :)

Many thanks -- I see that now. However, there is a mysterious piece of this puzzle that still eludes me: Since the filtering_streambuf (myCompressedFileStream) needs the ofstream file (myFileStream) defined FIRST, in order to push it, how do I then construct a valid ostream that I can stream to and will be compressed INTO the file I specified in the ofstream. If I just output to myFileStream, it doesn't go through the filtering_streambuf and UNCOMPRESSED text ends up in the file.

to 3: if you do not specify a concrete path, afaik the file should be created in the directory where the file is run from.

I found the location where the file was being created: <user>/Library/Preferences/. Because the path wasn't specified in the test case of "hello.z", it might be because that was the last folder/directory navigated to by the app's code. I didn't originally find it because normally Spotlight doesn't search those folders. However, Activity Monitor revealed hello.z as an open file -- complete with path! Stephen