cppcheck/test/testsuites/duma/wrong1.c

#include <stdio.h>

int main() {
  printf("Hello world!\n");

  int* pI = (int*)malloc(sizeof(int));
  *pI=2;
  free(pI);
  printf("Now freeing a pointer twice...\n");
  free(pI);
  printf("Did you notice?\n");
  return 0;
}