Functions like `atoi` parse strings into integers, but will happily accept “ 10blah” and return 10. In my experience it’s best to validate that the string is we

Functions like `atoi` parse strings into integers, but will happily accept “ 10blah” and return 10. In my experience it’s best to validate that the string is well-formed (e.g. contains only digits) before passing it to one of those functions.