dev-cpp-users

RE: [Dev-C++] Problem on XP Professional

[Ed C. <em...@ed...>]

Mohammed,

You have a buffer overflow or a problem with pointers. For example, if you
declared in one place char a[] = "Hello world", then tried to do
sprintf(a,"xxxxxxxxxxxxxxxxxxxx"), that could do it. More likely, you're
doing something like assigning an invalid value to a pointer or failing to
use malloc().

If your program took three hours to compile and you haven't debugged it,
yet, it's going to take you a LONG time to find all the problems. I suggest
reading up on pointers at http://www.eskimo.com/~scs/C-faq/top.html

Hope that helps!

-Ed

 


-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Mohammed
Iqbal
Sent: Saturday, January 24, 2004 12:36 AM
To: Dev-Cpp-Users
Subject: [Dev-C++] Problem on XP Professional


Hi...


I wrote a a large program with Dev-C++ on Windows XP Professional. The
compilation went smooth for three hours and the program ran fine. There's
only one problem I can't find the reason for it. Some parts of my program
when I try to use produces an error message saying that some portion of
memory can't be written. Why?


Mohammed



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RE: [Dev-C++] Problem on XP Professional

[Ed C. <em...@ed...>]

Marhaba Mohammed,

Glad it's working for you! I'm sorry if I sounded patronizing, earlier; =
I
didn't mean to be. I'm surprised adding memory worked, but I'm glad it
works.

-Ed

P.S. Are you in Jordan? (I saw the .jo in your address.) Where, if you =
don't
mind my asking? I've spent some time in Amman, and I love the country.

=20


-----Original Message-----
From: Mohammed Iqbal [mailto:mi...@ac...]=20
Sent: Tuesday, January 27, 2004 12:52 PM
To: Ed Cottrell; 'Dev-Cpp-Users'
Subject: Re: [Dev-C++] Problem on XP Professional



----- Original Message -----
From: "Ed Cottrell" <em...@ed...>
To: "'Mohammed Iqbal'" <mi...@ac...>; "'Dev-Cpp-Users'"
<dev...@li...>
Sent: Tuesday, January 27, 2004 6:16 PM
Subject: RE: [Dev-C++] Problem on XP Professional


> Mohammed,
>
> You have a buffer overflow or a problem with pointers. For example, if =
you
> declared in one place char a[] =3D "Hello world", then tried to do
> sprintf(a,"xxxxxxxxxxxxxxxxxxxx"), that could do it. More likely, =
you're
> doing something like assigning an invalid value to a pointer or =
failing to
> use malloc().

I checked it many times. No problem with pointers. It is a memory =
allocation
problem. The problem is solved because I added more memory to my =
computer.


> If your program took three hours to compile and you haven't debugged =
it,
> yet, it's going to take you a LONG time to find all the problems. I
suggest
> reading up on pointers at http://www.eskimo.com/~scs/C-faq/top.html

it took all that time to compile because it is very big and uses class
templates and function templates heavily.

Mohammed

Re: [Dev-C++] Problem on XP Professional

[Mohammed I. <mi...@ac...>]

----- Original Message -----
From: "Ed Cottrell" <em...@ed...>
To: "'Mohammed Iqbal'" <mi...@ac...>; "'Dev-Cpp-Users'"
<dev...@li...>
Sent: Tuesday, January 27, 2004 6:16 PM
Subject: RE: [Dev-C++] Problem on XP Professional


> Mohammed,
>
> You have a buffer overflow or a problem with pointers. For example, if you
> declared in one place char a[] = "Hello world", then tried to do
> sprintf(a,"xxxxxxxxxxxxxxxxxxxx"), that could do it. More likely, you're
> doing something like assigning an invalid value to a pointer or failing to
> use malloc().

I checked it many times. No problem with pointers. It is a memory allocation
problem. The problem is solved because I added more memory to my computer.


> If your program took three hours to compile and you haven't debugged it,
> yet, it's going to take you a LONG time to find all the problems. I
suggest
> reading up on pointers at http://www.eskimo.com/~scs/C-faq/top.html

it took all that time to compile because it is very big and uses class
templates and function templates heavily.

Mohammed

Re: [Dev-C++] Problem on XP Professional

[Per W. <pw...@ia...>]

You should still track down the problem. If a memory allocation fail, you
want to trap the problem and either terminate the program with a message
that the user should release more memory before running it, or you want
the program to continue but without the exptra features that requires more
memory.

/Per W

On Tue, 27 Jan 2004, Mohammed Iqbal wrote:

>
> ----- Original Message -----
> From: "Ed Cottrell" <em...@ed...>
> To: "'Mohammed Iqbal'" <mi...@ac...>; "'Dev-Cpp-Users'"
> <dev...@li...>
> Sent: Tuesday, January 27, 2004 6:16 PM
> Subject: RE: [Dev-C++] Problem on XP Professional
>
>
> > Mohammed,
> >
> > You have a buffer overflow or a problem with pointers. For example, if you
> > declared in one place char a[] = "Hello world", then tried to do
> > sprintf(a,"xxxxxxxxxxxxxxxxxxxx"), that could do it. More likely, you're
> > doing something like assigning an invalid value to a pointer or failing to
> > use malloc().
>
> I checked it many times. No problem with pointers. It is a memory allocation
> problem. The problem is solved because I added more memory to my computer.
>
>
> > If your program took three hours to compile and you haven't debugged it,
> > yet, it's going to take you a LONG time to find all the problems. I
> suggest
> > reading up on pointers at http://www.eskimo.com/~scs/C-faq/top.html
>
> it took all that time to compile because it is very big and uses class
> templates and function templates heavily.
>
> Mohammed
>
>
>
>
>
> -------------------------------------------------------
> The SF.Net email is sponsored by EclipseCon 2004
> Premiere Conference on Open Tools Development and Integration
> See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
> http://www.eclipsecon.org/osdn
> _______________________________________________
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> Dev...@li...
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>