Banned C standard library functions in Git source code
I'm glad to see that setjmp() and longjmp() are still allowed.I'm just kidding by the way. For those C programmers who  haven't encountered these before, it is a powerful way to do a "goto" in C. Powerful in the sense that you can jump anywhere, not limited to the same function. If it's used at all these days, it's used for exception handling.More info:
https://en.wikipedia.org/wiki/Setjmp.h