Re: test13-pre5

[H. Peter Anvin]

Followup to:  <[e-mail]>
By author:    Geert Uytterhoeven <[e-mail]>
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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