Motivation for using size_t uint32 uint64 etc

Question

When I reading some code, for integer, they use bunch of different type such as size_t, uint32, uint64 etc. What is the motivation or purpose to do this? Why not ju

Answer 1

For info on size_t, see the Stack Overflow question: What is size_t in C?

You're right for uint32 and uint64 that they're just being specific about the number of bits that they would like, and that the compiler should interpret them as unsigned.