You shouldn't have worried: his points are not valid at all. Using fixed-width types across various embedded (as in "small and exotic") platforms is a nightmare

You shouldn't have worried: his points are not valid at all. Using fixed-width types across various embedded (as in "small and exotic") platforms is a nightmare for portability. There is no reason not to use standard integer types, providing you understood their definition. Use fixed-width types only when absolutely really needed; don't use standard types when you need fixed-width width, assuming they will be an exact size, and everything will be fine.