Message-ID: <3BC35FB1.FF1958C@earthlink.net>
From: Martin Ambuhl <mambuhl AT earthlink DOT net>
Organization: Nocturnal Aviation
X-Mailer: Mozilla 4.77 [en] (Win95; U)
X-Accept-Language: en,de-CH,fr,ru,zh-CN,ja
MIME-Version: 1.0
Newsgroups: comp.os.msdos.djgpp
Subject: Re: compiler doesn't catch missing semicolon after struct
References: <c3114d1f DOT 0110091227 DOT 17603d3b AT posting DOT google DOT com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 46
Date: Tue, 09 Oct 2001 20:33:27 GMT
NNTP-Posting-Host: 64.152.170.173
X-Complaints-To: abuse AT earthlink DOT net
X-Trace: newsread1.prod.itd.earthlink.net 1002659607 64.152.170.173 (Tue, 09 Oct 2001 13:33:27 PDT)
NNTP-Posting-Date: Tue, 09 Oct 2001 13:33:27 PDT
X-Received-Date: Tue, 09 Oct 2001 13:29:52 PDT (newsmaster1.prod.itd.earthlink.net)
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

tenbux wrote:
> 
> Hi all,
> 
> I was working on a fairly simple lab for a CS class, and using DJGPP
> to compile and test my programs. Here is some sample code I had
> written:
> 
> #include <stdio.h>
> 
> struct bit {
>   int bit;
>   struct bit *next;
> }
> 
> main(int argc, char *argv[])
> {
>   int x;
>   FILE *in, *out;
> 
>   if (argc < 3) {
>     puts("Usage: binprint <numbers> <output>");
>     return;
>   }
> 
>   if ((in = fopen(argv[1], "r")) == NULL) {
>     printf("Error opening input file: %s\n", argv[1]);
>     return;
>   }
> 
> You'll notice that there is no semicolon after the struct declaration
> (as is required). But gcc didn't catch this, instead it warned me
> about main not being declared as int. 

gcc caught it.  You declared main as returning a struct bit instead of
an int.  It told you about, but ...

> So when I ran the binary with no
> arguments, 

you ignored the warning and got what you deserved.

> Is this a current bug or is it supposed
> to act that way? :)

Don't blame the compiler for your errors.