Subject: Re: CMSG_* problems
To: None <tech-userlevel@NetBSD.org>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: tech-userlevel
Date: 02/15/2007 00:39:29
> section 5.2.4.2 (Numerical limits) where the minimum and maximum
> sizes of integral types is specified.  It actually says char < short
> <= int < long < long long.  More precisely, the minimum number of
> bits for each type:
> 	char 	 8
> 	short	16
> 	int	16
> 	long	32
> 	llong	64

Your "more precisely" makes it sound as though the table is what is
present and the rest is your interpretation.

This table does not, in itself, compel char < short or int < long or
long < long long.  These are *minimums*; for example, nothing here
prevents long and long long from each being 64 bits - or for that
matter prevents all five of these types from being 64 bits wide.
(Other factors prevent that last, actually; int must be strictly wider
than unsigned char because of the existence of EOF.)

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