I have been working on a library that is used for low level bit manipulation of integral types, and modeling of n-bit length types. I have written it as a template library, for inclusion with the Boost library ( hopefully). This is my public request for interest to see if anyone would be interested in such a library. This code runs under Visual Studio and g++ ( linux, and Mac ) . I have posted a web page with documentation ( still a work in progress ), of most all the functionality in the library. There is also a tar ball there, that has been tested with Boost 1.33.1 . Documentation and source tar-ball can be found here : http://www.emulogic.com/bit_logic Any feedback, positive, negative, suggestions is always appreciated. Also if there is a better suggestion for a name, I am open to it. I realize the Boost.Logic library has a very different purpose than this one, and don't want them to be confused. -Art