Am Dienstag, den 02.12.2014, 20:02 -0500 schrieb Rich Felker:
> UINT32_MAX and UINT64_MAX lack the U suffix. This probably does not
> matter for UINT64_MAX since the value does not fit in intmax_t, but
> for UINT32_MAX, it will be treated as a signed value at the
> preprocessor level without the U suffix.

right, so I should add such a signed/unsigned preprocessor test to my
test program. (makes it even more ugly)

> It may be possible to eliminate the #if UINTPTR_MAX == UINT64_MAX
> check for defining INT64_C() etc. using an expression that yields the
> right type naturally (e.g. (c)+0*0x7fffffffffffffff etc.) but I'm not
> sure if that's an improvement.

With the patch I proposed, there is no conditional compilation of that
kind anymore.

Jens


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