title: CRC32 C or C++ implementation
body: <p>I'm looking for an implementation of CRC32 in C or C++ that is explicitly licensed as being no cost or public domain.  The implementation <a href="http://www.networkdls.com/Software/View/CRC32" rel="noreferrer">here</a> seems nice, but the only thing it says about the license is "source code", which isn't good enough.  I'd prefer non LGPL so I don't have to fool around with a DLL (my app is closed source).  I saw the adler32 implementation in zlib, but I'm checking small chunks of data, which adler is not good for.  </p>