What are the problems with setjmp/longjmp? (a honest question; I've drafted a proof-of-concept implementation of C coroutines yesterday, just to see how long it

What are the problems with setjmp/longjmp? (a honest question; I've drafted a proof-of-concept implementation of C coroutines yesterday, just to see how long it will take me to get it working -- http://gist.github.com/491302 http://gist.github.com/491302).