__SIZE_TYPE__
#ifndef __SIZE_TYPE__
__SIZE_TYPE__ fread(void *, __SIZE_TYPE__, __SIZE_TYPE__, FILE *);
__SIZE_TYPE__ fwrite(const void *, __SIZE_TYPE__, __SIZE_TYPE__, FILE *);
__SIZE_TYPE__ b = __builtin_va_arg_pack_len();
TEST_UMAX(SIZE, __SIZE_TYPE__);
TEST_SIZEOF(SIZE_T, __SIZE_TYPE__);