C/Memory/Memory Free
Deallocate dynamically allocated memory: how to use free
#include <stdio.h>
#include <stdlib.h>
int main ()
{
int *buffer1, *buffer2, *buffer3;
buffer1 = (int*) malloc (10*sizeof(int));
buffer2 = (int*) calloc (10,sizeof(int));
buffer3 = (int*) realloc (buffer2,50*sizeof(int));
free (buffer1);
free (buffer3);
return 0;
}