Path: utzoo!utgpu!attcan!uunet!mcvax!hp4nl!philmds!prle!cstw01!meulenbr
From: meulenbr@cstw01.UUCP (Frans Meulenbroeks)
Newsgroups: comp.os.minix
Subject: Minix/ST <stdio.h> problems.
Message-ID: <249@cstw01.UUCP>
Date: 21 Oct 88 08:47:19 GMT
Reply-To: meulenbr@cst.UUCP ()
Organization: Centre for Software Technology, Philips Eindhoven
Lines: 24

Hi!

I've encountered a number of problems using Minix/ST <stdio.h>.
The major problem is that it defines NULL as 0.
This is a killer on an ST since sizeof(char *) == 32 and sizeof(int) == 16.
Solution: change the 0 in (char *)0

Some other problems are encountered when a program tries to access the
private part of a FILE struct (e.g. the count field, which is normally
called cnt), or when someone refers to _iob (which is _io_table on
Minix). I have a quick and dirty fix using defines, which fixes most of
these problems. The question is: should I post it (is there interest),
and can I post it (context diffs will be greater than the complete file;
however, I'm also a little reluctant to post the complete file without
permission of Dr. Tanenbaum).

A side note: don't expect that _doprintf uses the parameter order you're
used to. It doesn't. Of course decent programs don't call _doprintf
directly (but dirty ones like the curses lib do.

-- 
Frans Meulenbroeks        (meulenbr@cst.prl.philips.nl)
	Centre for Software Technology
	( or try: ...!mcvax!philmds!prle!cst!meulenbr)