evil.c

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

#define sizeof(n) ((size_t)(rand() % (sizeof(n) + 1)))

int main(int argc, char **argv)
{
  int i;

  for(i = 0; i < 100; ++i) {
    printf("%lu\n", sizeof(int));
  }

  return 0;
}