Thread: [Dev-C++] Help me with debugging pls.

Hello all,
here is my short code: 

#include <iostream.h> 
#include <stdio.h> 
#include <stdlib.h> 

int main (int argc, char *argv[]) 
{ 
    int x =3D 1000; 

    x =3D x*x; 
    cout << "Hello World!" << endl; 
    x =3D 1; 
    cout << "Press ENTER to continue... " << x <<endl; 
    getchar (); 

    return 0; 
} 

I need to watch variable x, but when I step in code while debugging each=
 line with x is skiped and no x value is displayed. Only three lines (cout=
 and getchar) are evaluated correctly. 
Some error "No symbol x in current context." is displayed in debugging=
 infos.

Does anyone know where is the problem, can you try it by yourself and write=
 me your status? I need to watch variables values while debugging because=
 otherwise it is not valuable for me. I have devcpp.exe 4.9.4.3.

Thank you very much for your help.

With best regards,

Vaclav Kremen. 

I do not know the GDB thing but i have to make your code ANSI C++
compliant. :)
 
 
Ioannis


 

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Vaclav
Kremen
Sent: Wednesday, July 31, 2002 5:44 PM
To: dev...@li...
Subject: [Dev-C++] Help me with debugging pls.


Hello all,
here is my short code: 

#include <iostream.h>  
 

#include <iostream>

 
#include <stdio.h>  

 
Or better: #include <cstdio>

 
 
#include <stdlib.h>  
 

 
Or better: #include <cstdlib> 

int main (int argc, char *argv[]) 
{  
 
int argc, char *argv[] are not used, so they are not needed.
 
using namespace std;
 
    int x = 1000; 

    x = x*x; 
    cout << "Hello World!" << endl; 
    x = 1; 
    cout << "Press ENTER to continue... " << x <<endl; 
    getchar ();  
 
 
or better: cin.ignore(); So <cstdio> is not needed.
 
 
    return 0; 
}  

 
Ioannis

* Ioannis Vranos
* Programming pages:  <http://www.noicys.cjb.net/>
http://www.noicys.cjb.net
* Alternative URL:  <http://run.to/noicys> http://run.to/noicys

Just one comment, Ioannis, writing the following:

using namespace std;

completely defeats the purpose of namespaces, as it just includes everything
within the std namespace, including those things that are not needed.
Instead, I suggest writing:

using std::cout;
using std::system;
//etc

at the top of whichever file needs these functions.

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...]On Behalf Of Ioannis
Vranos
Sent: Thursday, 1 August 2002 7:37 PM
To: dev...@li...
Subject: RE: [Dev-C++] Help me with debugging pls.


I do not know the GDB thing but i have to make your code ANSI C++ compliant.
:)


Ioannis



-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Vaclav
Kremen
Sent: Wednesday, July 31, 2002 5:44 PM
To: dev...@li...
Subject: [Dev-C++] Help me with debugging pls.


Hello all,
here is my short code:

#include <iostream.h>

#include <iostream>

#include <stdio.h>

Or better: #include <cstdio>


#include <stdlib.h>


Or better: #include <cstdlib>

int main (int argc, char *argv[])
{

int argc, char *argv[] are not used, so they are not needed.

using namespace std;

    int x = 1000;

    x = x*x;
    cout << "Hello World!" << endl;
    x = 1;
    cout << "Press ENTER to continue... " << x <<endl;
    getchar ();


or better: cin.ignore(); So <cstdio> is not needed.


    return 0;
}


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys

> -----Original Message-----
> From: Ramana Kumar [mailto:ra...@my...] 
> Sent: Monday, August 05, 2002 2:30 PM
> To: Ioannis Vranos; C++
> Subject: RE: [Dev-C++] Help me with debugging pls.
> 
> 
> Just one comment, Ioannis, writing the following:
> 
> using namespace std;
> 
> completely defeats the purpose of namespaces, as it just 
> includes everything
> within the std namespace, including those things that are not needed.
> Instead, I suggest writing:
> 
> using std::cout;
> using std::system;
> //etc
> 
> at the top of whichever file needs these functions.


:) Well the using std::thing is elegant when used for only 2-3 names.
Here indeed we could do that since we use only cout, endl, and
getchar().


The using namespace std; is an attempt to defeat the namespace system
when we use it in global scope (as many folks do) and i think everyone
can realise that. Well i am using it in local scope.


So in summary, use using std::thing when there are only 2-4 names and
using namespace std; when there are more. And these, in as small scope
as possible.


So, the using namespace something; and using something::thing are not
prohibited in local scopes. :)



Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys



> 
> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...]On Behalf Of Ioannis
> Vranos
> Sent: Thursday, 1 August 2002 7:37 PM
> To: dev...@li...
> Subject: RE: [Dev-C++] Help me with debugging pls.
> 
> 
> I do not know the GDB thing but i have to make your code ANSI 
> C++ compliant.
> :)
> 
> 
> Ioannis
> 
> 
> 
> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...] On Behalf Of Vaclav
> Kremen
> Sent: Wednesday, July 31, 2002 5:44 PM
> To: dev...@li...
> Subject: [Dev-C++] Help me with debugging pls.
> 
> 
> Hello all,
> here is my short code:
> 
> #include <iostream.h>
> 
> #include <iostream>
> 
> #include <stdio.h>
> 
> Or better: #include <cstdio>
> 
> 
> #include <stdlib.h>
> 
> 
> Or better: #include <cstdlib>
> 
> int main (int argc, char *argv[])
> {
> 
> int argc, char *argv[] are not used, so they are not needed.
> 
> using namespace std;
> 
>     int x = 1000;
> 
>     x = x*x;
>     cout << "Hello World!" << endl;
>     x = 1;
>     cout << "Press ENTER to continue... " << x <<endl;
>     getchar ();
> 
> 
> or better: cin.ignore(); So <cstdio> is not needed.
> 
> 
>     return 0;
> }
> 
> 
> Ioannis
> 
> * Ioannis Vranos
> * Programming pages: http://www.noicys.cjb.net
> * Alternative URL: http://run.to/noicys
> 

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Ramana Kumar
> Sent: Monday, August 05, 2002 2:30 PM
> To: Ioannis Vranos; C++
> Subject: RE: [Dev-C++] Help me with debugging pls.
> 
> Instead, I suggest writing:
> 
> using std::cout;
> using std::system;
> //etc
> 
> at the top of whichever file needs these functions.


As i said in the other email, you should not use them in global scope of
the file!


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys

Vaclav Kremen wrote:

> Hello all,
> here is my short code:
>
> #include <iostream.h>
> #include <stdio.h>
> #include <stdlib.h>
>
> int main (int argc, char *argv[])
> { 
>     int x = 1000; 
>
>     x = x*x; 
>     cout << "Hello World!" << endl; 
>     x = 1; 
>     cout << "Press ENTER to continue... " << x <<endl; 
>     getchar (); 
>
>     return 0;
> }
>
> I need to watch variable x, but when I step in code while debugging 
> each line with x is skiped and no x value is displayed. Only three 
> lines (cout and getchar) are evaluated correctly.
> Some error "No symbol x in current context." is displayed in debugging 
> infos.
>
> Does anyone know where is the problem, can you try it by yourself and 
> write me your status? I need to watch variables values while debugging 
> because otherwise it is not valuable for me. I have devcpp.exe 4.9.4.3.
> Thank you very much for your help.
>  
> With best regards,
>  
> Vaclav Kremen. 

Try looking this:

ftp://161.97.203.92/pub/insight5_win32_exe.zip
http://www.geocities.com/uniqueness_template/
or just in www.bloodshet.net

Install insight5 overwrite dgb in Dev-C++ but works fine (the interfase 
is clear to see), dbg in Dev-C++ have some problems up to now, almost I 
think. Both applications run friendly.

Roberto