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Path: utzoo!utgpu!water!watmath!watvlsi!padpowell
From: padpowell@watvlsi.UUCP
Newsgroups: comp.lang.fortran,comp.lang.pascal
Subject: Re: Array storage order
Message-ID: <3538@watvlsi.UUCP>
Date: Tue, 30-Jun-87 13:56:51 EDT
Article-I.D.: watvlsi.3538
Posted: Tue Jun 30 13:56:51 1987
Date-Received: Fri, 3-Jul-87 05:49:01 EDT
References: <1215@batcomputer.tn.cornell.edu> <105@anumb.UUCP>
Reply-To: padpowell@watvlsi.UUCP (Patrick Powell)
Organization: U. of Waterloo, Ontario
Lines: 21
Xref: utgpu comp.lang.fortran:115 comp.lang.pascal:153

In article <105@anumb.UUCP> eao@anumb.UUCP (e.a.olson) writes:
>> 
>> One of the questions that has come up is with respect to the storage
>> order of 2-dimensional arrays. In C, array element [1][2] is stored
>> in memory immediately after element [1][1]. I believe this is locked
>> into the language - pointer arithmetic and all that. On the Fortran
>> compilers I can get to, (2,1), not (1,2), immediately follows (1,1).
>> The pascal I haven't investigated yet.

>> Question: is this array storage order mandated by the Fortran-77 standard?
>> How about the Pascal standard?   If so, then I'll document the arrays as being
>> garry wiegand   (garry@oak.cadif.cornell.edu - ARPA)
>> 		(garry@crnlthry - BITNET)
>    The order is mandated by the standard.
>    In fortran, arrays are stored in row-major order.  In 'C'
>    and Pascal arrays are stored in column-major order.

NO NO NO... Other way around.  Fortran Columns, Pascal and C are rows.
Don't worry,  I've had days like that.   In fact,  I've had LIVES like that.

Patrick ("Read the manual?  What manual?  OHHH! THAT manual...") Powell