Just learning C++ because why not:
At the end of the day, booleans don't have to be used to make true and/or false statements in C.
C Libraries (PART 1):
The <iso646.h> library
What is wrong with the C code? Game 1
What happens if you type in C++ code in a C app in front of an experienced C/C++ program developer, and intentionally annoy them?