linux-kernel - Re: [patch 2/9] Store max number of objects in the page struct.

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Date:	Fri, 21 Mar 2008 20:27:31 -0700
From:	Ben Pfaff <blp@...stanford.edu>
To:	linux-kernel@...r.kernel.org
Cc:	linux-mm@...ck.org
Subject:  Re: [patch 2/9] Store max number of objects in the page struct.

Andrew Morton <akpm@...ux-foundation.org> writes:

>> +#define USHRT_MAX	((u16)(~0U))
>> +#define SHRT_MAX	((s16)(USHRT_MAX>>1))
>> +#define SHRT_MIN	(-SHRT_MAX - 1)
>
> We have UINT_MAX and ULONG_MAX and ULLONG_MAX.  If these were actually
> UNT_MAX, ULNG_MAX and ULLNG_MAX then USHRT_MAX would make sense.
>
> But they aren't, so it doesn't ;)
>
> Please, let's call them USHORT_MAX, SHORT_MAX and SHORT_MIN.

SHRT_MIN, SHRT_MAX, and USHRT_MAX are the spellings used by
<limits.h> required in ISO-conforming C implementations.  That
doesn't mean that the kernel has to use those spellings, but it
does mean that those names are widely understood by C
programmers.
-- 
Ben Pfaff 
http://benpfaff.org

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