#include <quiz.h>
  #include <stddef.h>
  #include <assert.h>
  #include "helpers.h"
  
  QUIZ_CASE(liba_stddef) {
    assert(NULL == 0);
  
    assert_unsigned(size_t);
    assert(sizeof(size_t) == __SIZEOF_SIZE_T__);
    assert_signed(ssize_t);
    assert(sizeof(ssize_t) == __SIZEOF_SIZE_T__);
  }