Comprehensive Cheat Sheet for C Developers

This list really just scratches the surface of the standard C libraries and C syntax. You can't really call it comprehensive if it's missing something as fundamental as memcpy(). As a truly comprehensive reference for serious C programmers, I'd recommend this book:

C: A Reference Manual, by Harbison and Steele

http://www.amazon.com/Reference-Manual-5th-Edition/dp/013089...

(That's the same Guy Steele who's known for his work on the Common Lisp specification. He's a man of many talents...)