#include #include "test.h" struct s { char a; char b; }; ptrdiff_t test_ptrdiff; size_t test_size; wchar_t test_wchar; void test_stddef_h(void) { static struct s the_s; testing_header("stddef.h"); test_true(NULL == 0); test_int_equals(offsetof(struct s, b), (char*)&(the_s.b) - (char*)&the_s); testing_end(); }