X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
X-Received: by 10.224.129.196 with SMTP id p4mr1722274qas.6.1372202820327;
        Tue, 25 Jun 2013 16:27:00 -0700 (PDT)
X-Received: by 10.50.73.69 with SMTP id j5mr871310igv.14.1372202820289; Tue,
 25 Jun 2013 16:27:00 -0700 (PDT)
Newsgroups: comp.os.msdos.djgpp
Date: Tue, 25 Jun 2013 16:26:59 -0700 (PDT)
In-Reply-To: <fa6e9d1a-62f9-42c9-a020-5c317d7c33da@googlegroups.com>
Complaints-To: groups-abuse AT google DOT com
Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=71.222.72.40; posting-account=jrLHRgkAAABPV01ZW_RN_U6Tm5UnYNUx
NNTP-Posting-Host: 71.222.72.40
References: <36e857f0-9899-496b-9fc6-32251e109888 AT googlegroups DOT com>
 <kpo3gh$4qo$1 AT speranza DOT aioe DOT org> <858cbded-7989-46e6-a997-93f842cdb3b0 AT googlegroups DOT com>
 <kq75ni$qvf$1 AT speranza DOT aioe DOT org> <020e0244-406c-4c1f-9dbc-d82a0fae976f AT googlegroups DOT com>
 <fa6e9d1a-62f9-42c9-a020-5c317d7c33da AT googlegroups DOT com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <efcd3df3-8410-4735-92c4-fee6c18e12fc@googlegroups.com>
Subject: Re: General Protection Fault error is intermittent
From: "K.J.Williams" <lordwilliams1972 AT gmail DOT com>
Injection-Date: Tue, 25 Jun 2013 23:27:00 +0000
Content-Type: text/plain; charset=ISO-8859-1
Bytes: 2980
Lines: 55
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id r5PNj2KA015453
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

On Tuesday, June 25, 2013 8:45:35 AM UTC-7, rug DOT  DOT  DOT  AT gmail DOT com wrote:
> Hi,
> 
> 
> 
> On Tuesday, June 25, 2013 3:24:59 AM UTC-5, K.J.Williams wrote:
> 
> > 
> 
> > BTW, I found another bug with DJGPP 
> 
> >
> 
> > if you have program that just uses :
> 
> > 
> 
> > #include<stdio.h>
> 
> > #include<string.h> 
> 
> > 
> 
> > ...and you use a function from ctype.h - as I did with isspace(),
> 
> > without including ctype.h in your includes ... DJGPP/GCC will NOT
> 
> > complain about it and will still compile it.
> 
> 
> 
> Originally, way way back, C didn't have a preprocessor at all. I
> 
> think, without explicit prototypes, C assumes every function returns
> 
> an int. C nowadays only has simple file inclusion, thus it's not true
> 
> modules, hence instead of the compiler checking for consistency, it's
> 
> left to the linker to resolve. But for varargs functions (e.g. printf)
> 
> you always have to include the header for prototype as it's allowed
> 
> to change the ABI.
> 

Well I have noticed this in some .h files (which I can read in RHIDE), they sometimes #include other .h(s) before the defintions. I thought , maybe string.h or stdio.h has a ctype.h included which is allowing me to get away from actually using #include<ctype.h> in my code that I was needing isspace(); for. But I immediately added that #include to my source code to prevent future problems