I was looking through the manuals on strcpy() and strcat(). Seems there's no way to evaluate the "success" of the function call. (ie return value will never be NULL), is that correct?
It's just assumed that if you follow the rules for the input of these functions that the output will be valid? Just wanted to make sure I wasn’t missing anything here…
These functions cannot fail in any well-defined way. They will either succeed, or things have gone horribly wrong (e.g. missing 0 char or too small output buffer), and anything could happen.