Followup to: <[EMAIL PROTECTED]>
By author: Geert Uytterhoeven <[EMAIL PROTECTED]>
In newsgroup: linux.dev.kernel
>
> What about defining new types for this? Like e.g. `x8', being `u8' on platforms
> were that's OK, and `u32' on platforms where that's more efficient?
>
You may just want to look at how C99 handles this using <stdint.h>;
stdint.h defines types of the following format:
int, uint ... signed/unsigned
<size> ... exact size
_least<size> ... no smaller than
_fast<size> ... no smaller than, and efficient
_t
E.g. uint32_t, int_least64_t, uint_fast8_t (the latter could easily be
a 32-bit type, for eaxmple.)
In addition, constructor macros are defined, as well as (u)intmax_t
and (u)intptr_t; which are defined as the largest
possible integer and an integer large enough to hold a (void *),
respectively.
In other words:
(void *)(uintptr_t)(void *)foo == (void *)foo
-hpa
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