size guarantee for integral/arithmetic types in C and C++

Question

I know that the C++ standard explicitly guarantees the size of only char, signed char and unsigned char. Also it gives guarantees that

Answer 1

Just be careful about the fact that some machines have chars that are more than 8 bits. For example, IIRC on the TI C5x, a long is 32 bits, but sizeof(long)==2 because chars, shorts and ints are all 16 bits with sizeof(char)==1.