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Date: Wed, 26 Jun 2013 23:29:42 -0700 (PDT)
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Subject: Re: General Protection Fault error is intermittent
From: "K.J.Williams" <lordwilliams1972 AT gmail DOT com>
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On Wednesday, June 26, 2013 7:24:34 AM UTC-7, rug DOT  DOT  DOT  AT gmail DOT com wrote:
> Hi,
> 
> 
> 
> On Tuesday, June 25, 2013 6:26:59 PM UTC-5, K.J.Williams wrote:
> 
> > 
> 
> > 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
> 
> 
> 
> You mentioned C99 explicitly, so you must be targeting that. I'm
> 
> far from standards expert, but C89 (aka, ANSI C) only had 15
> 
> headers, and they were all standalone. (Doesn't mean they didn't
> 
> include system dependent stuff behind the scenes, but the 15
> 
> weren't mixed amongst themselves.)
> 
> 
> 
> C99 changed that, as I recently found out on djgpp-workers.
> 
> Apparently some are mixed these days, e.g. inttypes.h apparently
> 
> includes stdint.h. But you can't always count on such things
> 
> for other headers, so it's best to be explicit in always including
> 
> headers for functions you use.
> 
> 
> 
> http://stackoverflow.com/questions/2027991/list-of-standard-header-files-in-c-and-c
> 
> 
> 
> BTW, my recommendation (for you) is to use "-Wall -Wextra -Wpedantic -std=c99"
> 
> with latest GCC 4.8.1, though I doubt that will automatically avoid all possible errors. But hey, it's better than nothing.

Ok thanks... btw I am using GCC 4.7.3, the previous edition for building console programs.