Why does malloc initialize the values to 0 in gcc?

Question

Maybe it is different from platform to platform, but

when I compile using gcc and run the code below, I get 0 every time in my ubuntu 11.10.

#include         


        

Answer 1

Your code doesn't demonstrate that malloc initialises its memory to 0. That could be done by the operating system, before the program starts. To see shich is the case, write a different value to the memory, free it, and call malloc again. You will probably get the same address, but you will have to check this. If so, you can look to see what it contains. Let us know!