Memory allocated not used unless initialized?

Question

This is a followup to the question I just asked here.

I\'ve created a simple program to help myself understand memory allocation, malloc() and free()<

Answer 1

it could be compiler optimization : the memory is not used at all, so a possible optimization is to not allocate this memory depening on compiler and on optimization options.

i tested your code, the line : free((void *)pmeg); does not cause any memory leak for me.