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From: deb@gt-eedsp.UUCP
Newsgroups: comp.lang.c
Subject: Trouble with arrays
Message-ID: <40@gt-eedsp.UUCP>
Date: Wed, 27-May-87 11:44:24 EDT
Article-I.D.: gt-eedsp.40
Posted: Wed May 27 11:44:24 1987
Date-Received: Fri, 29-May-87 01:23:49 EDT
Reply-To: deb@gt-eedsp.UUCP (Deb Jackson)
Distribution: na
Organization: School of Electrical Engineering, Ga. Tech, Atlanta, GA  30332
Lines: 50

Perhaps this is a stupid question, but...

If I have a procedure in the same file that it's called from I get the
one array dimension as given by 4.3's version of DBX.  When I place
it in a separate file, DBX reports a different dimension!  

For example:  (same file)
        #include <stdio.h>
        #define MAXOUTSIZE  318
        #define MAXFILTSIZE 62
        main()
        {
          static float X[MAXOUTSIZE][MAXOUTSIZE]; /* input image */
          .../* other decls, etc. */...
          writearray(X, (dim + L - 1));
        }
        writearray(a, size)
          float a[MAXOUTSIZE][MAXOUTSIZE];
          int size;
        { /* body */ }

(dbx) whatis writearray.a
        array[0..62] of float *a;

If writearray is in another file, with MAXOUTSIZE defined as above:

(dbx) whatis writearray.writearray.a
        array[0..MAXINT] of float *a;
                 ^^^^^^of course, it doesn't say 'MAXINT', but the
                       integer there is indeed MAXINT (unsigned on 
                       a Vax 11/780)

Neither is correct!  In the first, it's too small, in the second it's
much greater than necessary.  Is this dbx that is messing up, or am I
missing the point entirely???  Maybe it's important to mention that
I'm running 4.2BSD(BRL)...just have the 4.3 version of dbx since it
handles fortran better than the old one.

Normally, I wouldn't really care what dbx says, but the printf's in
writearray die when malloc'ing in the latter version, so I'm quite
sure somethings terribly wrong!  [Note:  I have checked all the
declarations, etc...I know I haven't made a typo along the way.]

Thanks for any insight you can offer!
Deb Jackson
-- 
Georgia Tech, School of Electrical Engineering, Atlanta, GA 30332
(404)894-3058
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