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Path: utzoo!mnetor!seismo!gatech!hubcap!beede
From: beede@hubcap.UUCP (Mike Beede)
Newsgroups: comp.lang.c
Subject: Re: Two dimensional arrays in C (Oops)
Message-ID: <245@hubcap.UUCP>
Date: Tue, 30-Jun-87 19:26:00 EDT
Article-I.D.: hubcap.245
Posted: Tue Jun 30 19:26:00 1987
Date-Received: Wed, 1-Jul-87 06:57:12 EDT
References: <238@hubcap.UUCP>
Organization: Clemson University, Clemson, SC
Lines: 20

in article <238@hubcap.UUCP>, beede@hubcap.UUCP (Me) says:
> 
> #define matrix_el(array,i,j) (array[y*sizeof(double)+j])
> 
which of course is completely bogus.  I'm not sure _where_ that
sizeof(double) popped in, but anyway the correct version is

#define matrix_el(array,i,j) (array[i*y+j]) ,

as a kind reader pointed out by email--thanks.  I guess I'll see a few cards
and letters on this one.

P.S.,

 Well, not _completely_ bogus -- it _does_ produce an l-valued expression :-)  
-- 
Mike Beede                      UUCP: . . . !gatech!hubcap!beede
Computer Science Dept.          ARPA: BEEDE@TECNET-CLEMSON.ARPA
Clemson University              INET: beede@hubcap.clemson.edu
Clemson SC 29631-1906           PH: (803)656-{2845,3444}