1 sizeof (int8_t) = 1 2 sizeof (int16_t) = 2 3 sizeof (int32_t) = 4 4 sizeof (int64_t) = 8 5 sizeof (uint8_t) = 1 6 sizeof (uint16_t) = 2 7 sizeof (uint32_t) = 4 8 sizeof (uint64_t) = 8 9 sizeof (intptr_t) = 8 10 sizeof (uintptr_t) = 8 11 sizeof (uchar_t) = 1 12 sizeof (ushort_t) = 2 13 sizeof (uint_t) = 4 14 sizeof (ulong_t) = 8 15 sizeof (u_longlong_t) = 8 16 sizeof (ptrdiff_t) = 8 17 sizeof (signed) = 4 18 sizeof (unsigned) = 4 19 sizeof (void) = 0 20 sizeof (char) = 1 21 sizeof (short) = 2 22 sizeof (int) = 4 23 sizeof (long) = 8 24 sizeof (_Bool) = 1 25 sizeof (float) = 4 26 sizeof (double) = 8