<slavek.f.kuzniar@jpmorgan.com> wrote in message news:OFBB047E1B.B12BDF48-ON85256EA6.004E93AD@ny.jpmorgan.com...
I downloaded the library from the yahoo link you mentioned in the
review
request. When trying to use 'filtered_stream' I ran into some compilation issues (RedHat 9, g++ 3.3) and before looking into it I wanted to know the review status. Knowing that the library is in the review pipeline I will give it another try.
Thanks for trying it out. I'm sorry to hear about the compilation problems. gcc 3.3 on Linux is defintely one of the supported platforms. Last I rememeber it passed all the regression tests. Normally, I would ask you to post your code and error messages, but I think in this case it doesn't make much sense to patch an old version of the library. I'd like to put up the new version and have you try it out.
Some time ago I developed simple iostream adapter 'library' that allows to wrap IO device (sockets, pipes, etc) in std::[i,o,io]stream that is very similar to your sink/source technique. One difference is that the adapter is a template class parameterized by the source/sink types.
This is the approach I take in the latest version (actually its present in the previous version but sort of hidden). There are two main streambuf and stream templates -- streambuf_facade and stream_facade -- both parameterized by a source/sink. (The names are stolen from Boost.Iterator, of course.) For filtering there are also two templates, filtering_streambuf and filtering_stream, parameterized by a 'mode' (input, output, etc.) and by character type. Basically, everything is simpler to use, and more flexible. I've also improved the implementation. As an experiment I replaced tag dispatch with a technique using is_convertible and simulated partial specialization. To my amazement I found about a 30% speed-up on como and found that Borland 5.6.4 runs about twice as fast.
Since your library offers this functionality (plus much more) I am very pleased it will become part of boost soon.
Thanks for the encouragement. I certainly hope it will become part of boost. Best Regards, Jonathan