Xref: utzoo comp.lang.c:35010 comp.os.msdos.programmer:2638
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From: marwk@levels.sait.edu.au
Newsgroups: comp.lang.c,comp.os.msdos.programmer
Subject: Re: Turbo C far pointer problem
Message-ID: <15797.2781f6d3@levels.sait.edu.au>
Date: 2 Jan 91 15:05:55 GMT
References: <1990Dec31.035801.26785@lingua.cltr.uq.OZ.AU>
Organization: Sth Australian Inst of Technology
Lines: 29


>       int     maxrows, maxcols;
>       char    **array;
>
>       maxrows = ...whatever...
>       maxcols = ...whatever...
>
>       array = (char **) malloc(maxcols * sizeof(char *));

Use maxrows in the above line.

>
>       for(x=0; x < maxrows; x++)      /* !!! do not change this line */
>               array[x] = (char *) malloc(maxrows);

Use maxrows in the above line


Your first malloc allocates MAXCOLS column pointers.
The second allocates MAXROWS rows for MAXROWS columns, not MAXCOLS columns.

The usual matrix use requires array[r][c] to refer to the r'th row and the
c'th column - the changes above will fix this.

Perhaps your UNIX program has a bug it in now?  ;-)

I have tested my solution with TC 2.01.

Ray