I love how in every C code snippet on every comment on this thread, somebody got something wrong. I take it as a sign that it's probably best to avoid C as much as possible.

! multithreaded it's not Hey, at least code

Any C compiler that isn't a trivial toy implementation will warn about that, so it's hardly a C gotcha.

clang and VC++ for x64 warn about this out of the box, but gcc seems to need -Wall.

Maybe my least favorite "feature" of C. I can manage most aspects of zero-terminated strings well enough, but when I have to specify the length of them, is it an 'int', 'size_t', 'ssize_t', or something else? (Answer: All of the above!)