How is dynamically allocated space freed when a program is interrupted using Ctrl-C?

Question

Given the following code:

#include 

int main()
{
    int *p;
    p = (int *)malloc(10 * sizeof(int));

    while(1);
    return 0;
}
<         


        

Answer 1

The full explanation of _exit is here:

http://pubs.opengroup.org/onlinepubs/9699919799/functions/_Exit.html

The same things happen when a process terminates as a result of a fatal signal.