#include <stdio.h> #include <stdlib.h> #include <string.h> #define BUFSIZE1 512 int main(int argc, char **argv) { char *buf1R1; char *buf2R1; buf1R1 = (char *) malloc(BUFSIZE1); buf2R1 = (char *) malloc(BUFSIZE1); free(buf1R1); free(buf2R1); memset(buf1R1, 0x42, BUFSIZE1); }