malloc-3.c

#include <stdio.h>
#include <stdlib.h>

int main (void)
{
  int *buffer = NULL;

  buffer = malloc (24 * sizeof (int));   /* 42 Integer-Variable anlegen */
                /* ^^ Zahlendreher infolge Code-Verdopplung! */

  for (int i = 0; i < 42000; i++)
    buffer[i] = i;

  /* free() vergessen! :-( */

  return 0;
}