You used sprintf over strcat_s, which would make it less safe.
But why are we bothering with C API in the first place? This is C++. If we want to use sprintf, we can use Boost.Format. Or we can use std::string.
Originally Posted by Adak
io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
Originally Posted by Salem
You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.
Outside of your DOS world, your header file is meaningless.