I've just released a new gem called "sizes". This is a very simple gem that exposes "sizeof" to Ruby to enable checking size of primitive types like :float, :unsigned_int, and so forth. I needed this for a parser I was writing, (I didn't feel like writing the whole thing in C), couldn't find a way to do it without an extension, and saw no reason not to publish the code afterward. :) I hope I didn't just reinvent something that already exists in core Ruby -- but I couldn't find it if it does, no matter how hard I Googled. Documentation and source code: http://github.com/sinisterchipmunk/sizes -Colin MacKenzie IV http://thoughtsincomputation.com -- Posted via http://www.ruby-forum.com/.