Date: Wed, 15 Sep 1999 12:02:18 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Batchex <thedark1 AT Phreaker DOT net>
cc: djgpp AT delorie DOT com
Subject: Re: invalid operands
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On Mon, 13 Sep 1999, Batchex wrote:

>   char **lpszTable;
[snip]
>   for(nIdx=1;nIdx<nNumEntries;nIdx++)
>    lpszTable[nIdx]=(char *)(lpszTable[0]+(lpszTable[nIdx]-lnDataStart));
[snip]
> 
>   The last line of the code always gives me "invalid operands for
>   binary +".

lpszTable is a pointer to a pointer.  Therefore, lpszTable[0] and
(lpszTable[nIdx]-lnDataStart) are both pointers.  You cannot add two
pointers in C.  That's what the compiler keeps telling you.

>   One other question, not related to the above code, anybody know any
>   function that can read raw data from file (like _dos_read()) that is
>   POSIX compliant? fread() seems to stop whenever it encounter CR/LF
>   pair ("\n"), and my data have a lot of them.

Use the "b" specifier when you open the file, like this:

    FILE *fp - fopen ("filename", "rb");

And no, _dos_read is not Posix.  The DJGPP library docs explicitly
tell which functions are ANSI- and Posix-compliant and which aren't.
Please use that information, it is there for you.