Mail Archives: djgpp/1998/02/24/15:16:07
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Date: Tue, 24 Feb 1998 12:59:48 -0700
From: Mike Williams <mikewilliams3 AT mci2000 DOT com>
Subject: Re: HELP!!!!
To: Nate Eldredge <eldredge AT ap DOT net>
Cc: eldredge AT ap DOT com, djgpp AT delorie DOT com
Reply-to: mikewilliams3 AT mci2000 DOT com
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Nate Eldredge wrote:
> At 12:29 2/10/1998 -0700, Mike Williams wrote:
> >Hope somebody can help me. I'm a real newbie to 'C' programming, trying
> >to teach myself with your fine software and a copy of "C for
> >Dummies"...an appropriate choice...:)
> > The first lesson is how to compile, link and run a simple
> >(really, really simple) source file and produce an .exe file. It appears
> >to work, and produces an exe file, and doing an [ALT F5] shows an output
> >screen with the text as it should be. Once it's compiled, I get an "Exit
> >code 17" or "Exit code 22" in Rhide, but although it says "no errors" in
> >the lower window, it also says Access denied. I don't know if these
> >messages are normal; I didn't find anything in a quick look over the
> >FAQ's. My problem is that if I try to run it from the DOS prompt, it
> >says "program too big to load". I have plenty of spare RAM, both
> >conventional and extended, and the program size is 78Kb. I've tried it
> >on 3 different PC's now; a 486/66, Dos 6.2: a486 DX4/100 running Win95,
> >and a full-blown Pentium 220MMX. I've tried starting in DOS, or invoking
> >the DOS prompt from Windows, and I get the same message on all 3 PC's.
> I don't know about the "too big to load" message. It's come up a few times
> and I never heard what the cause or the solution was. Try these:
> * Compile your file from the command line:
> gcc -o foo.exe foo.c
> I did that.
> and see if it works then.
> No difference
> * Make sure you are using DJGPP v2.01, the latest version.Got that!
> * Scan for viruses, file corruptions, etc.
> None!
> * If none of these helps, post again. I have some more specific ideas about
> finding the problem.
> In any case, if you find what caused or fixed this problem, please post a
> summary so your solution can help other people.
>
> Read on for the fix to the "Exit code 22" problem.
> >Any ideas?
> > This is the source file:
> >#include <stdio.h>
> >
> >void main()
> >{
> > printf("GO AWAY, MORON!\n");
> >}
> This is wrong. According to ANSI C, the `main' function must return an
> `int'. If not, behavior is "undefined" and usually results in funny return
> codes. If there were no errors, that return value should be 0. Correct code:
>
> #include <stdio.h>
>
> int main(void)
> {
> printf("Hello, world\n"); /* more friendly :) */
> return 0;
> } Thanks, that
> fixed the error exit problem.
> I think you should get rid of the Dummies book. Their examples are no good,
> and that doesn't help at all. Someone else, here or on comp.lang.c, might be
> able to recommend a better one. You might also check the comp.lang.c FAQ.
> (_The_C_Programming_Language,_Second_Edition_ is recommended frequently and
> is practically the definitive reference, but I don't know how well it works
> as a tutorial. The First Edition wasn't bad...)
>
> Nate Eldredge
> eldredge AT ap DOT net
Thanks for the input..now I hope you can help again. If I compile and run the
program, it works from within rhide,as before, but as soon as it has run, the
bottom window has the following message:-
permission denied (EACCESS)
no errors
As Christian (ChrHenz AT aol DOT com) and you suggested earlier, I have experimented
with using "int main()" instead of the original "void main()" as instructed by
the rather silly C for Dummies book from which I'm trying to learn C.
Unfortunately, the office budget will not run to a "proper" book Also,
including the "return 0;" statement took care of the exit error problem. I still
can't get the blasted thing to run outside Rhide, though...still the "too big to
load" error. Something else I noticed is that if I try to run it from within
Win95, instead of opening a DOS window, as other DOS files do, it says "this is
not a valid win32 program"
None of these errors are fatal, or anything, because I'm still learning C,
and as long as they work from within Rhide, I know the source code is working.
It's just that once I start writing "real" programs, it would be nice if they
would actually run independently! Still, at the rate I'm progressing, that day
is still a long way off, however eager my boss is that I start editing some
applications!
Thanks for your help!
Mike
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<HTML>
Nate Eldredge wrote:
<BLOCKQUOTE TYPE=CITE>At 12:29 2/10/1998 -0700, Mike Williams wrote:
<BR>>Hope somebody can help me. I'm a real newbie to 'C' programming, trying
<BR>>to teach myself with your fine software and a copy of "C for
<BR>>Dummies"...an appropriate choice...:)
<BR>> The first lesson is how to compile,
link and run a simple
<BR>>(really, really simple) source file and produce an .exe file. It appears
<BR>>to work, and produces an exe file, and doing an [ALT F5] shows an
output
<BR>>screen with the text as it should be. Once it's compiled, I get an
"Exit
<BR>>code 17" or "Exit code 22" in Rhide, but although it says "no errors"
in
<BR>>the lower window, it also says Access denied. I don't know if these
<BR>>messages are normal; I didn't find anything in a quick look over the
<BR>>FAQ's. My problem is that if I try to run it from the DOS prompt,
it
<BR>>says "program too big to load". I have plenty of spare RAM, both
<BR>>conventional and extended, and the program size is 78Kb. I've tried
it
<BR>>on 3 different PC's now; a 486/66, Dos 6.2: a486 DX4/100 running Win95,
<BR>>and a full-blown Pentium 220MMX. I've tried starting in DOS, or invoking
<BR>>the DOS prompt from Windows, and I get the same message on all 3 PC's.
<BR>I don't know about the "too big to load" message. It's come up a few
times
<BR>and I never heard what the cause or the solution was. Try these:
<BR>* Compile your file from the command line:
<BR> gcc -o foo.exe foo.c
<FONT COLOR="#3333FF">I did that.</FONT>
<BR>and see if it works then. <FONT COLOR="#3333FF">
No difference</FONT>
<BR>* Make sure you are using DJGPP v2.01, the latest version.<FONT COLOR="#3333FF">Got
that!</FONT>
<BR>* Scan for viruses, file corruptions, etc.<FONT COLOR="#3333FF">
None!</FONT>
<BR>* If none of these helps, post again. I have some more specific ideas
about
<BR>finding the problem.
<BR>In any case, if you find what caused or fixed this problem, please
post a
<BR>summary so your solution can help other people.
<P>Read on for the fix to the "Exit code 22" problem.
<BR>>Any ideas?
<BR>> This is the source file:
<BR>>#include <stdio.h>
<BR>>
<BR>>void main()
<BR>>{
<BR>> printf("GO AWAY, MORON!\n");
<BR>>}
<BR>This is wrong. According to ANSI C, the `main' function must return
an
<BR>`int'. If not, behavior is "undefined" and usually results in funny
return
<BR>codes. If there were no errors, that return value should be 0. Correct
code:
<P>#include <stdio.h>
<P>int main(void)
<BR>{
<BR> printf("Hello, world\n"); /* more friendly :) */
<BR> return 0;
<BR>}<FONT COLOR="#3333FF">
Thanks, that fixed the error exit problem.</FONT></BLOCKQUOTE>
<BLOCKQUOTE TYPE=CITE>I think you should get rid of the Dummies book. Their
examples are no good,
<BR>and that doesn't help at all. Someone else, here or on comp.lang.c,
might be
<BR>able to recommend a better one. You might also check the comp.lang.c
FAQ.
<BR>(_The_C_Programming_Language,_Second_Edition_ is recommended frequently
and
<BR>is practically the definitive reference, but I don't know how well
it works
<BR>as a tutorial. The First Edition wasn't bad...)
<P>Nate Eldredge
<BR>eldredge AT ap DOT net</BLOCKQUOTE>
<FONT COLOR="#3333FF"> Thanks for the input..now I hope you can help
again. If I compile and run the program, it works from within rhide,as
before, but as soon as it has run, the bottom window has the following
message:-</FONT>
<BR><FONT COLOR="#3333FF">permission denied (EACCESS)</FONT>
<BR><FONT COLOR="#3333FF">no errors</FONT>
<BR><FONT COLOR="#3333FF">As Christian (ChrHenz AT aol DOT com) and you
suggested earlier, I have experimented with using "int main()" instead
of the original "void main()" as instructed by the rather silly C
for Dummies book from which I'm trying to learn C. Unfortunately, the office
budget will not run to a "proper" book Also, including the "return
0;" statement took care of the exit error problem. I still can't get the
blasted thing to run outside Rhide, though...still the "too big to load"
error. Something else I noticed is that if I try to run it from within
Win95, instead of opening a DOS window, as other DOS files do, it says
"this is not a valid win32 program"</FONT>
<BR><FONT COLOR="#3333FF"> None of these errors are fatal,
or anything, because I'm still learning C, and as long as they work from
within Rhide, I know the source code is working. It's just that once I
start writing "real" programs, it would be nice if they would actually
run independently! Still, at the rate I'm progressing, that day is still
a long way off, however eager my boss is that I start editing some applications!</FONT>
<P><FONT COLOR="#3333FF">Thanks for your help!</FONT>
<P><FONT COLOR="#3333FF">Mike</FONT>
<BR> </HTML>
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