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From: mouse@thunder.mcrcim.mcgill.edu (der Mouse)
Newsgroups: comp.lang.c
Subject: Re: is this array access portable?
Message-ID: <1991Jun29.123056.21366@thunder.mcrcim.mcgill.edu>
Date: 29 Jun 91 12:30:56 GMT
References: <1991Jun23.185351.5695@thunder.mcrcim.mcgill.edu> <1991Jun25.135920.4120@cs.odu.edu>
Organization: McGill Research Centre for Intelligent Machines
Lines: 20

In article <1991Jun25.135920.4120@cs.odu.edu>, kremer@cs.odu.edu (Lloyd Kremer) writes:
> In article <1991Jun23.185351.5695@thunder.mcrcim.mcgill.edu> mouse@thunder.mcrcim.mcgill.edu (der Mouse) writes:
>>	sometype foo[40][50]; sometype *fp; int i;
>>	fp = &foo[0][0]; for (i=2000;i>0;i--) *fp++ = something;
>> Is this portable?

> Arrays are guaranteed contiguous, therefore arrays of arrays (being
> arrays themselves) are guaranteed contiguous.

Yes, but that doesn't necessarily mean that a pointer can run through
the whole array as I outlined above.

(By the way, does the answer to my original question change any if
"sometime" is known to be "char"?)

					der Mouse

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