dev-cpp-users — Dev-C++ users discussion list

Re: [Dev-C++] graphics.h (Where Do i Get It)

[Hongli L. <h....@ch...>]

On Sat, 2002-08-10 at 19:01, Garrett Bratvold wrote:
> I Was Wondering, Where Can I Get a Dev C++ Compatible graphics.h?  And Its Really Hard To Find, Please--If You Know, Please Email Me:  
> 

One Answer: You Can't. It's A Borland/DOS Extension. If You Want To
Access Graphics Routines, Use The Win32 API Directly Or Use Some
Graphics Library Like SDL Or DirectX.
(and could you *please* stop typing everything in BiCapital?)

[Dev-C++] graphics.h (Where Do i Get It)

[Garrett B. <Jed...@ms...>]

I Was Wondering, Where Can I Get a Dev C++ Compatible graphics.h?  And It=
s Really Hard To Find, Please--If You Know, Please Email Me: =20

Jed...@ms... .

May The Force Be With You,
Garrett B.Get more from the Web.  FREE MSN Explorer download : http://exp=
lorer.msn.com

Re: [Dev-C++] Problem linking simple GTK+ prog with Dev-Cpp 4.9.5.0

[Hongli L. <h....@ch...>]

On Sat, 2002-08-10 at 14:55, Mark Brooks wrote:
> Hello.  I'm trying to get the GTK+ 2.0.3 package to work correctly with my
> Dev-Cpp install on Win2k.  I'm using the default minGW complier that comes
> with Dev-Cpp, and I've installed all the Dev-Cpp updates that the update
> tool says are available.

Use the GTK+ *template*.

RE: [Dev-C++] Problem linking simple GTK+ prog with Dev-Cpp 4.9.5.0

[Mark B. <jmb...@ea...>]

One other note.  I installed GTK+ with the package manager.

Mark Brooks

> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...]On Behalf Of Mark
> Brooks
> Sent: Saturday, August 10, 2002 8:56 AM
> To: dev...@li...
> Subject: [Dev-C++] Problem linking simple GTK+ prog with Dev-Cpp 4.9.5.0
>
>
> Hello.  I'm trying to get the GTK+ 2.0.3 package to work correctly with my
> Dev-Cpp install on Win2k.  I'm using the default minGW complier that comes
> with Dev-Cpp, and I've installed all the Dev-Cpp updates that the update
> tool says are available.
>
> I believe that I have the include directories properly registered with the
> IDE.  What I'm getting are linking errors.
>
> [Linker error] undefined reference to `gtk_init_abi_check'
> [Linker error] undefined reference to `gtk_window_new'
> [Linker error] undefined reference to `gtk_widget_show'
> [Linker error] undefined reference to `gtk_main'
>
> Here is the simple program I'm trying to get to compile and run
> correctly as
> a test of my GTK setup:
>
> #include <gtk/gtk.h>
>
> int main (int argc, char *argv[])
> {
>
>      GtkWidget *window;
>
>      gtk_init (&argc, &argv);
>
>      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>
>      gtk_widget_show (window);
>
>      gtk_main();
>
>      return 0;
>
> }
>
> As I said, a simple test program.
>
> I'm sure that there's something I haven't configured correctly that is
> causing the problem.  Could it be that I need to insert '-lglib' and
> '-lgtk+' in my compiler options somewhere?
>
> Thanks for any assistance.
>
> Mark Brooks
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
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[Dev-C++] forget...

[Zodiaq <zo...@ac...>]

Hello, forget about my last question...

   what I need is not header control but list view control...

---
regards, Zodiaq

Re[4]: [Dev-C++] monitoring traffic, how?

[Zodiaq <zo...@ac...>]

Hello A and all Dev-C++ users,

Saturday, August 10, 2002, 1:45:19 PM, A wrote as follows:

AK> You don´t need a driver for getting this info. There are numerous small
AK> applications which give you that info, some with source, like:
AK> http://gamma.nic.fi/~rainy/Rainmeter.html which is extensible by your own
AK> plugins and is GPLed.

Yeah, nice software, but I don't have time to analize how it works...
instead someone on newsgroup gave me info how to do what I want... the
answer is very simple - IP helper API... just simple like that... I'm
already building my simple app that monitor data flow through my
interfaces... and now I need SOME MORE HELP...

Does anybody know (or have some example) how to properly build header
control that could work on strings (edit controls?) ? Well, I found
how to build header, but how to make it work (make it move data below
it) with some edit controls... I have problems understanding how it
works - header and rich edit ? Well, when I put header control inside
rich edit I can normally put text inside rich edit - and that text
destroys header(writes over)... which is BAD! ;-] Any help
apreciated...

AK> Alex

-- 
regards, Zodiaq

[Dev-C++] Problem linking simple GTK+ prog with Dev-Cpp 4.9.5.0

[Mark B. <jmb...@ea...>]

Hello.  I'm trying to get the GTK+ 2.0.3 package to work correctly with my
Dev-Cpp install on Win2k.  I'm using the default minGW complier that comes
with Dev-Cpp, and I've installed all the Dev-Cpp updates that the update
tool says are available.

I believe that I have the include directories properly registered with the
IDE.  What I'm getting are linking errors.

[Linker error] undefined reference to `gtk_init_abi_check'
[Linker error] undefined reference to `gtk_window_new'
[Linker error] undefined reference to `gtk_widget_show'
[Linker error] undefined reference to `gtk_main'

Here is the simple program I'm trying to get to compile and run correctly as
a test of my GTK setup:

#include <gtk/gtk.h>

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

     GtkWidget *window;

     gtk_init (&argc, &argv);

     window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

     gtk_widget_show (window);

     gtk_main();

     return 0;

}

As I said, a simple test program.

I'm sure that there's something I haven't configured correctly that is
causing the problem.  Could it be that I need to insert '-lglib' and
'-lgtk+' in my compiler options somewhere?

Thanks for any assistance.

Mark Brooks

Re: Re[2]: [Dev-C++] monitoring traffic, how?

[A.Klingenstein <kli...@we...>]

On Thu, 8 Aug 2002 11:31:45 +0200
Zodiaq <zo...@ac...> wrote:
> Yeah, I know about that, and I know about perfmon... but I just want
> write something similar by my own - something to show me bytes
> received and send, nothing more... so I have to build driver for that?
> Or are there any simplier methods?

You don´t need a driver for getting this info. There are numerous small
applications which give you that info, some with source, like:
http://gamma.nic.fi/~rainy/Rainmeter.html which is extensible by your own
plugins and is GPLed.

Alex

[Dev-C++] timers

[Ramana K. <ra...@my...>]

Hi, I have a problem concerning timers in windows.
I am using only win32 API, and i use the fuction:

 SetTimer(hwnd,id,len*100,NULL);
//hwnd is the HWND of the window, id is a UINT, len is a UINT

to set a timer that will later send a WM_TIMER message to my WindowProc. In
my WindowProc i have code like this:

 case WM_TIMER:
 {
  myclass->blah();
  return 0;
 }
//myclass is a pointer to an object with a function called blah

and the function blah sets bool thebool to the value false.

in the function that calls SetTimer, i later have the code:

 thebool = true;
 while(thebool)
 {
  MessageBox(hwnd,"WAITING","ERROR",MB_OK); //this gets deleted
 }

when i run the program, the messagebox comes up a number of times until
len*100 milliseconds has passed, then it resumes normal operation.
The problem is, i do not want to have to put up this messagebox. So i delete
the code for it. Once i do this, it seems the WM_TIMER message is never sent
for some reason. even if a put a messagebox in the case WM_TIMER: section,
it is never shown, unless i keep the messagbox in the while loop.
what is the meaning of this?
how am i using the timer wrongly?
thanks in advance
ramana
ps i also tried putting WaitMessage(); in the while loop instead, but it has
no effect.

RE: Re[2]: [Dev-C++] Stupid question

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf Of Zodiaq
> Sent: Saturday, August 10, 2002 1:40 AM
> To: Dev...@li...
> Subject: Re[2]: [Dev-C++] Stupid question
> 
> 
> Hello Ioannis and all Dev-C++ users,
> 
> Friday, August 9, 2002, 11:53:12 PM, Ioannis wrote as follows:
> 
> IV> Your code is valid, you should not get any errors, 
> although it could be
> IV> written better:
> 
> IV> #include <iostream>
> IV> #include <cstdlib>
> 
> 
> IV> int main() {
> 
> IV>   using namespace std;
>   
> IV>   cout << "hello" << "\n";
> IV>   system("PAUSE");
> 
> Ain't that better to use cin.ignore() instead of cstdlib and
> system("PAUSE") ??


Yes that would be more portable.



> that are just my two grosze...
> -- 
> regards, Zodiaq


Ioannis hands to  Zodiaq 2 euro-grosze.


Ioannis

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

Re[2]: [Dev-C++] Stupid question

[Zodiaq <zo...@ac...>]

Hello Ioannis and all Dev-C++ users,

Friday, August 9, 2002, 11:53:12 PM, Ioannis wrote as follows:

IV> Your code is valid, you should not get any errors, although it could be
IV> written better:

IV> #include <iostream>
IV> #include <cstdlib>


IV> int main() {

IV>   using namespace std;
  
IV>   cout << "hello" << "\n";
IV>   system("PAUSE");

Ain't that better to use cin.ignore() instead of cstdlib and
system("PAUSE") ??

IV>   return 0;
IV>   }


IV> Ioannis

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

that are just my two grosze...
-- 
regards, Zodiaq

RE: [Dev-C++] Stupid question

[Ioannis V. <no...@ho...>]

Your code is valid, you should not get any errors, although it could be
written better:

#include <iostream>
#include <cstdlib>


int main() {

  using namespace std;
  
  cout << "hello" << "\n";
  system("PAUSE");

  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 jansb000
> Sent: Saturday, August 10, 2002 12:16 AM
> To: Jim Watters; dev...@li...
> Subject: Re: [Dev-C++] Stupid question
> 
> 
> This is my program: I still have the problem ([linker error] undefined
> reference to 'cout')!
> 
> #include <iostream>
> #include <stdlib.h>
> 
> using namespace std;
> 
> int main(int argc, char *argv[]) {
>   cout << "hello" << "\n";
>   system("PAUSE");
>   return 0;
>   }
> 
> ----- Original Message -----
> From: "Jim Watters" <ma...@em...>
> To: <dev...@li...>
> Sent: Wednesday, August 07, 2002 3:11 PM
> Subject: RE: [Dev-C++] Stupid question
> 
> 
> > -----Original Message-----
> > From: Jim Watters
> >
> > #include <iostream.h>
> >
> > ;-)
> >
> > -----Original Message-----
> > From: Ioannis Vranos
> >
> > #include <iostream>
> >
> > using namespace std;
> >
> > :)
> >
> > -----New Message-----
> >
> > You mean :) must be used instead of ;-)?
> >
> > Thanks. I'm used to C and doing things "the old way".
> >
> > :)
> >
> > Jim
> >
> >
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 

RE: [Dev-C++] Stupid question

[Rob <ro...@us...>]

I pasted your code into a blank file and compiled/executed it without
problem.

Rob

> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...]On Behalf Of jansb000
> Sent: Friday, August 09, 2002 4:16 PM
> To: Jim Watters; dev...@li...
> Subject: Re: [Dev-C++] Stupid question
>
>
> This is my program: I still have the problem ([linker error] undefined
> reference to 'cout')!
>
> #include <iostream>
> #include <stdlib.h>
>
> using namespace std;
>
> int main(int argc, char *argv[]) {
>   cout << "hello" << "\n";
>   system("PAUSE");
>   return 0;
>   }
>
> ----- Original Message -----
> From: "Jim Watters" <ma...@em...>
> To: <dev...@li...>
> Sent: Wednesday, August 07, 2002 3:11 PM
> Subject: RE: [Dev-C++] Stupid question
>
>
> > -----Original Message-----
> > From: Jim Watters
> >
> > #include <iostream.h>
> >
> > ;-)
> >
> > -----Original Message-----
> > From: Ioannis Vranos
> >
> > #include <iostream>
> >
> > using namespace std;
> >
> > :)
> >
> > -----New Message-----
> >
> > You mean :) must be used instead of ;-)?
> >
> > Thanks. I'm used to C and doing things "the old way".
> >
> > :)
> >
> > Jim
> >
> >
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

Re: [Dev-C++] Stupid question

[jansb000 <jan...@pl...>]

This is my program: I still have the problem ([linker error] undefined
reference to 'cout')!

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

using namespace std;

int main(int argc, char *argv[]) {
  cout << "hello" << "\n";
  system("PAUSE");
  return 0;
  }

----- Original Message -----
From: "Jim Watters" <ma...@em...>
To: <dev...@li...>
Sent: Wednesday, August 07, 2002 3:11 PM
Subject: RE: [Dev-C++] Stupid question


> -----Original Message-----
> From: Jim Watters
>
> #include <iostream.h>
>
> ;-)
>
> -----Original Message-----
> From: Ioannis Vranos
>
> #include <iostream>
>
> using namespace std;
>
> :)
>
> -----New Message-----
>
> You mean :) must be used instead of ;-)?
>
> Thanks. I'm used to C and doing things "the old way".
>
> :)
>
> Jim
>
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

Re: [Dev-C++] wxWindows

[Hongli L. <h....@ch...>]

On Fri, 2002-08-09 at 17:00, e.leon2 wrote:
> Is it planned to make a package with the last wxWindows (2.3.2) ?
> I tried to compile it with mingw32, but I get errors...

Have you noticed that 2.3.2 is the *development* version? In case you
don't know what it means: it's the version in development. It may not
compile, it may make your program crash, it's API may be incompatible or
may become incompatible in the future, etc.

The latest *stable* version is 2.2.9, which is packaged. Use that
instead.

Re: [Dev-C++] How to build static library with Dev-c++

[Elizabeth B. <sog...@ya...>]

"Ahmad Munif" <mu...@ho...> writes:

> i'm building mysql wrapper that linking with 
> -lmysqlclient -lwsock32 -lzlib 
> wrapper running well, then i built static library 
> using dev-c++ that linking with 
> -lmysqlclient -lwsock32 -lzlib and i got 
> new static library mywrapper.a 
> 
> i rename that name become libmywrapper.a then copy to lib dev-c++/lib 
> 
> but, when i used that static library that linking my application to 
> -lmysqlclient -lwsock32 -lzlib -lmywrapper 
> 
> i'm getting many linker error message: 
> [linker error] undefine reference to mysql_connect 
> 
> What's wrong ? 
> how to build static library dan using it with dev-c++ ? 

The order of the libraries on the command line make a difference.  Try
placing -lmysqlclient *after* -lmywrapper.

Elizabeth

Re: [Dev-C++] =?iso-8859-1?Q?wxWindows?=

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

Seems to work for me.

/PWM


On Fri, 9 Aug 2002, e.leon2 wrote:

> Is it planned to make a package with the last wxWindows (2.3.2) ?
> I tried to compile it with mingw32, but I get errors...
> ------------------------------------------
> 
> Faites un voeu et puis Voila ! www.voila.fr
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 

[Dev-C++] =?iso-8859-1?Q?wxWindows?=

[<e....@vo...>]

Is it planned to make a package with the last wxWindows (2.3.2) ?
I tried to compile it with mingw32, but I get errors...
------------------------------------------

Faites un voeu et puis Voila ! www.voila.fr 

RE: [Dev-C++] newbie questions without answer

[Rob <ro...@us...>]

Different people will give you different answers to questions about "better"
and "best" books. What do you want from a C++ book that would make it better
for you?

http://www.bruceeckel.com/ is a site where you can download a couple of free
books on C++ that you might find useful. I like them enough that I went
ahead and bought a paperback version of *Thinking in C++*. I'm also partial
to *C++ Primer Plus, 4th ed.*, which is published by SAMS.

Rob

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...]On Behalf Of senem beken
Sent: Friday, August 09, 2002 5:40 AM
To: dev...@li...
Subject: [Dev-C++] newbie questions without answer


again i send the files-this time i won't forget to include them- and i
checked that i wrote my questions this time only questions without any
comments...
i'm waiting for your help guys!! by the way can anyone suggest me a book
better than c++ how to program?? i didn't understand anything from operator
overloading!!
thanx...
senem




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HotJobs, a Yahoo! service - Search Thousands of New Jobs

Re: [Dev-C++] How to build static library with Dev-c++

[Ihsan A. Al D. <ia...@jo...>]

> i rename that name become libmywrapper.a then copy to lib dev-c++/lib 
> 
> but, when i used that static library that linking my application to 
> -lmysqlclient -lwsock32 -lzlib -lmywrapper 


It should be:
-lmysqlclient -lwsock32 -lzlib -libmywrapper 

Right?
Mohammed

Re: [Dev-C++] newbie questions without answer

[Daniel G. <sp...@ho...>]

oh no not again...

>Dev-cpp-users mailing list
>Dev...@li...
>TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
>https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


You know where I found that? At the bottom of this email!!!!!!!!!!!!!


>From: "Eric Taddei" <tad...@ms...>
>To: "Daniel Glenfield" <sp...@ho...>
>Subject: Re: [Dev-C++] newbie questions without answer
>Date: Fri, 9 Aug 2002 08:48:28 -0400
>
>I have a question that does not pertain to Dev-C++.  I keep getting e-mail 
>including this one I'm responding to.  Can you tell me how I can get off 
>the e-mail list.  Your help would be greatly appreciated
>
>----- Original Message -----
>From: Daniel Glenfield
>Sent: Friday, August 09, 2002 7:40 AM
>To: sbe...@ya...; dev...@li...
>Subject: Re: [Dev-C++] newbie questions without answer
>
>umm what is your question?
>
>
> >From: senem beken <sbe...@ya...>
> >To: dev...@li...
> >Subject: [Dev-C++] newbie questions without answer
> >Date: Fri, 9 Aug 2002 03:39:52 -0700 (PDT)
> >
> >
> >again i send the files-this time i won't forget to include them- and i
> >checked that i wrote my questions this time only questions without any
> >comments...
> >
> >i'm waiting for your help guys!! by the way can anyone suggest me a book
> >better than c++ how to program?? i didn't understand anything from 
>operator
> >overloading!!
> >
> >thanx...
> >
> >senem
> >
> >
> >
> >---------------------------------
> >Do You Yahoo!?
> >HotJobs, a Yahoo! service - Search Thousands of New Jobs
> ><< newbieques1.cpp >>
> ><< stringclass.cpp >>
>
>
>
>
>_________________________________________________________________
>Send and receive Hotmail on your mobile device: http://mobile.msn.com
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
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Re: [Dev-C++] newbie questions without answer

[Daniel G. <sp...@ho...>]

umm what is your question?


>From: senem beken <sbe...@ya...>
>To: dev...@li...
>Subject: [Dev-C++] newbie questions without answer
>Date: Fri, 9 Aug 2002 03:39:52 -0700 (PDT)
>
>
>again i send the files-this time i won't forget to include them- and i 
>checked that i wrote my questions this time only questions without any 
>comments...
>
>i'm waiting for your help guys!! by the way can anyone suggest me a book 
>better than c++ how to program?? i didn't understand anything from operator 
>overloading!!
>
>thanx...
>
>senem
>
>
>
>---------------------------------
>Do You Yahoo!?
>HotJobs, a Yahoo! service - Search Thousands of New Jobs
><< newbieques1.cpp >>
><< stringclass.cpp >>




_________________________________________________________________
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[Dev-C++] How to build static library with Dev-c++

[Ahmad M. <mu...@ho...>]

i'm building mysql wrapper that linking with 
-lmysqlclient -lwsock32 -lzlib 
wrapper running well, then i built static library 
using dev-c++ that linking with 
-lmysqlclient -lwsock32 -lzlib and i got 
new static library mywrapper.a 

i rename that name become libmywrapper.a then copy to lib dev-c++/lib 

but, when i used that static library that linking my application to 
-lmysqlclient -lwsock32 -lzlib -lmywrapper 

i'm getting many linker error message: 
[linker error] undefine reference to mysql_connect 

What's wrong ? 
how to build static library dan using it with dev-c++ ? 

Thanks 

RE: [Dev-C++] compiler psychiatrics

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Carlos Garc=EDa del Monte
> Sent: Thursday, August 08, 2002 9:31 PM
> To: dev-cpp-users-list
> Subject: Re: [Dev-C++] compiler psychiatrics
>=20
>=20
> > Great! As you see it was not a compiler's issue.
>=20
> Great! Yes!
> Now I've found and reviewed one piece of code which has the=20
> for(int i) I
> said it didn't work. It is an author error (author of some=20
> code example I
> used). The ANSI about declaring for is something like "you can declare
> inside a for statement in the way (int i =3D 0[...]), but you=20
> can't use it
> later outside it, if you want you have to declare it just=20
> before the for:
> int i; for(i=3D0[...]) or redeclare it".
>=20
> I read first C/C++, an old edition and centered in C, so it=20
> said nothing
> about possibility of declaring in the for.
> Later I bought the "C++ how to program" (which couple of=20
> inexactitudes I
> found, some misleading things about bitfields, I suspect are=20
> due to the
> translator (I bought it in spanish) who knows bad spanish=20
> (!!!)), but I knew
> for, and I only noticed "can be declared in", but not read=20
> "out of it it is
> out of scope". And later I got some code examples from some=20
> sites (I don't
> remember where) where they were used later, and that misled=20
> me, thinking
> that the error wasn't only outside, but inside, too.
>=20
> It's a bad thing that the last for/while rare thing is=20
> deleted. I would see
> a possibly frequent error. (or you a compiler strange=20
> behavior, hehehehe)
> and I would learn to see a error now I am unable to see (Feel I need a
> phrase about the sea being free).
> Greets.


Lets clarify things a bit here. A variable has scope inside the block it
was defined. For example:


void f()
{
 int i=3D0;

 i++;

// local scope
 {
   int j=3D0;

  j+=3D2;
 } // end of j's scope. j is destroyed.

 // another local scope
{
 // This is a different i
  int i=3D7;
 =20
  i*=3D2;

 // The local i has become 14, the first i remains 1
 } // end of local i's scope. i dies.

 // Here we see the i with value 1

}// end of function and i's scope. i is destroyed



This applies both in C & C++. The difference between C & C++ is that in
C90 you have to define the variables in the beginning of a scope, while
in C++98 you can define it in the first place you will need it in a
scope. I 'll not discuss about C99 so as to not confuse things.


Now in C90 when we wanted to define a local variable for a for-loop we
did this trick:


void f(void)
{
  {
    int i;
    for(i=3D0; i<10; i++)
       /* stuff */
   }
    /*  i dies */
=20

/* ... */
}
=20

Now in C++98=20

we can do

void f()
{
 for(int i=3D0; i<10; i++)
 {
  // stuff
 =20
 } // i dies here

}


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys
=20

[Dev-C++] Headers etc

[philip r. <ph...@ro...>]

Thanks to all for the advice.  I think I've found what the problem is - =
namely that I was a bit confused by the organisation of projects and =
files=20
within Devc - and that one cannot compile and link a file outside the =
project to which it belongs - or move a file about between folders and =
get it to link from its new location (correct me if this is not the =
case).  I'll see how I get on for the moment and come back if I get =
stuck.

Philip