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Re: Patch: Re: glimits.h is not compatible with -traditional


On Sep  1, 2000, "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> +#ifdef __STDC__
>  #define UINT_MAX (INT_MAX * 2U + 1)
> +#else
> +#define UINT_MAX ((unsigned)INT_MAX * 2 + 1)
> +#endif
 
I don't think there are equivalent.  INT_MAX * 2 overflows.  The right
fix would be `INT_MAX * (unsigned)2 + 1'.  In any case, it wouldn't be
possible to use these macros as CPP constants; I'm not sure whether
this is required by the standards.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me


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