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

[Dev-C++] Towers of Hanoi puzzle

[<Swe...@ao...>]

My teacher gave this assignment and i dont have a clue how to start it

You can move only one disc at a time 

At the end of each move you must always replace a disc on top of one of the 
towers, i.e. no putting them on the floor 

You may not put a larger disc on top of a smaller one. 

[Dev-C++] toolbar problem

[Vlada D. <dj...@im...>]

Hi.
I'm trying a toolbar for my window, but  I keep geting a lot of "undeclared"
error messages. I included commctrl.h in my source and added -lcomctl32 in
linker options, but it doesn't work. Here's compiler output (part of it):
23 C:\Visual\Interface\main.cpp
`INITCOMMONCONTROLSEX' undeclared (first use this function)
24 C:\Visual\Interface\main.cpp
`ccx' undeclared (first use this function)
26 C:\Visual\Interface\main.cpp
implicit declaration of function `int InitCommonControlsEx(...)'
92 C:\Visual\Interface\main.cpp
`BTNS_BUTTON' undeclared (first use this function)
95 C:\Visual\Interface\main.cpp
`CX_SEPARATOR' undeclared (first use this function)
95 C:\Visual\Interface\main.cpp
`BTNS_SEP' undeclared (first use this function)
.... and so on.
This is piece of code I used to create toolbar:
int WINAPI
WinMain (HINSTANCE hThisInstance,
         HINSTANCE hPrevInstance,
         LPSTR lpszArgument,
         int nFunsterStil)

{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved
*/
    WNDCLASSEX wincl;        /* Data structure for the windowclass */
    INITCOMMONCONTROLSEX ccx;
    ccx.dwSize=sizeof(INITCOMMONCONTROLSEX);
    ccx.dwICC=ICC_BAR_CLASSES;
    InitCommonControlsEx(&ccx);
..............

 case WM_CREATE:
        {
            TBBUTTON tbButtons[]=
            { {STD_FILENEW,ID_FILE_NEW,TBSTATE_ENABLED,BTNS_BUTTON,0L,0},
              {STD_FILEOPEN,ID_FILE_OPEN,TBSTATE_ENABLED,BTNS_BUTTON,0L,0},
              {STD_FILESAVE,ID_FILE_SAVE,TBSTATE_ENABLED,BTNS_BUTTON,0L,0},
              {CX_SEPARATOR,0,TBSTATE_ENABLED,BTNS_SEP,{0,0},0,-1},
              {STD_CUT,ID_EDIT_CUT,TBSTATE_ENABLED,BTNS_BUTTON,0L,0},
              {STD_COPY,ID_EDIT_COPY,TBSTATE_ENABLED,BTNS_BUTTON,0L,0}
              {STD_PASTE,ID_EDIT_PASTE,TBSTATE_ENABLED,BTNS_BUTTON,0L,0}
            };
            HWND
hToolBar=CreateToolbarEx(hwnd,WS_CHILD|WS_BORDER|WS_VISIBLE|TBSTYLE_TOOLTIPS
,

IDT_TOOLBAR,15,HINST_COMMCTRL,IDB_STD_SMALL_COLOR,tbButtons,ARRAYSIZE(tbButt
ons),
                        0,0,100,300,sizeof(TBBUTTON));
            if(!hToolBar)
                MessageBox(hwnd,"Can't create toolbar!","eror",MB_OK);
        }
        break;
Help, please!!

Regards,
Vlada

[Dev-C++] Dev C++ 4.9.69 Code Completion

[Mark M J. <mja...@at...>]

Re: [Dev-C++] M$

[Shayne K. <err...@ne...>]

Yeah, I hear your frustration. You have to be careful with VC++ and .Net,
since these are non-standard
(or at least MS Standard) C++ implementations.  I found gcc quite nice
with templates, although, I did run into a problem a while back dealing
with spacing:

X <int> foo;
as oppoesed to X<int> foo;


-- Shayne

http://www.shaynekasai.com

On Mon, 2 Dec 2002, Samuel Keding wrote:

> Tonight I had a very great desire to hurt Micro$oft. I
> was using there .net compiler trying to do an
> assignment with templates. I finally got what I
> thought were all the syntax errors out, but I kept
> getting linker errors. I finally downloaded my
> teacher's lecture notes and found out m$ has trouble
> with templates. So I put the definitions in the same
> file as the declarations and the program compiled and
> ran fine. I can't believe that I spent several hours
> on a project so simple. It made me want to hurt M$.
>
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[Dev-C++] M$

[Samuel K. <big...@ya...>]

Tonight I had a very great desire to hurt Micro$oft. I
was using there .net compiler trying to do an
assignment with templates. I finally got what I
thought were all the syntax errors out, but I kept
getting linker errors. I finally downloaded my
teacher's lecture notes and found out m$ has trouble
with templates. So I put the definitions in the same
file as the declarations and the program compiled and
ran fine. I can't believe that I spent several hours
on a project so simple. It made me want to hurt M$.

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RE: [Dev-C++] type mismatch

[Ken B. <ke...@al...>]

  -----Original Message-----
  From: dev...@li...
[mailto:dev...@li...]On Behalf Of Nathan
Binette
  Sent: Saturday, November 30, 2002 3:11 PM
  To: dev...@li...
  Subject: [Dev-C++] type mismatch


  When writing a basic program to perform a calcuation I have set types as
float to receive input (cin).  When I enter a character (not a number) when
prompted for input the program terminates.  This happens even when using
exception handling

      cin.exceptions(cin.failbit);
      try{  }
      catch (...) {   };

  I've enabled exception handling via compiler options but this does not
help?  Can anyone offer any comments on how to avoid program termination
when type mismatch occurs?

  Thanks, Nate
  [[Ken]: ]

  Why not receive a string, check for validity, and convert to a float?

  atof() means ASCII to float
  atol() means ASCII to long
  atoi() means ASCII to int

  #include <stdlib.h>
  price = atof (mybuffer);

  Checkout http://www.cplusplus.com/doc/tutorial/tut3-2.html.
  Ken Bradford
  Alpha II Service, Inc.
  (614)868-5033

RE: [Dev-C++] Problem with RegisterWindowMessage()

[Jaap de W. <wo...@Ne...>]

You can't use switch on a value which is not known at compile time.
instead, do a compare in default:
	default:
		if (message == WM_MYMESSAGE)
		{
			/* Do some stuff */		
		}
		else
		{
			return DefWindowProc (hwnd, message, wParam,
lParam);
		}

The other part of the story is that you shouldn't assign the value of a
variable in the header file, but do this in the implementation file.

> -----Original Message-----
> From: Marc Heiligers [mailto:ma...@e-...]
> Sent: Monday, December 02, 2002 02:32 PM
> To: dev-cpp-users-list
> Subject: [Dev-C++] Problem with RegisterWindowMessage()
> 
> 
> I have a little problem. I have a header file which I include 
> in my main
> file (surprise surprise). In the header I have the following:
> 
> const UINT WM_MYMESSAGE = RegisterWindowMessage(_T("some message"));
> 
> Right, now in my main WindowProc I have a switch statement like so:
> 
> LRESULT CALLBACK WindowProc(HWND hwnd, UINT message, WPARAM 
> wParam, LPARAM
> lParam)
> {
>     switch (message)                  /* handle the messages */
>     {
>       case WM_DESTROY:
>             PostQuitMessage (0);       /* send a WM_QUIT to 
> the message
> queue */
>             break;
> 	/* 
> 		And some more message handlers here
> 		more
> 		more
> 	*/
> 	case WM_MYMESSAGE:
> 		/*Do some stuff*/
> 	default:
> 		return DefWindowProc (hwnd, message, wParam, lParam);
>     }
>     return 0;
> }
> 
> So far so good. Now when I compile I get the following little message:
> 
> "case label `WM_MYMESSAGE' does not reduce to an integer constant"
> 
> Now, personally, I thought that a "const UINT" was an integer 
> constant, but
> clearly g++ disagrees. The funny thing is I have used similar 
> code with VC++
> v6 and not had the same problem. Any ideas of how I can 
> convince g++ that
> this is the case would be appreciated.
> 
> _____________________________
> Marc Heiligers
> 
> PS. I've had coffee before I wrote this, so I'm pretty sure 
> I'm thinking
> straight (for a change).
> 
> 
> -------------------------------------------------------
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[Dev-C++] Problem with RegisterWindowMessage()

[Marc H. <ma...@e-...>]

I have a little problem. I have a header file which I include in my main
file (surprise surprise). In the header I have the following:

const UINT WM_MYMESSAGE = RegisterWindowMessage(_T("some message"));

Right, now in my main WindowProc I have a switch statement like so:

LRESULT CALLBACK WindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM
lParam)
{
    switch (message)                  /* handle the messages */
    {
      case WM_DESTROY:
            PostQuitMessage (0);       /* send a WM_QUIT to the message
queue */
            break;
	/* 
		And some more message handlers here
		more
		more
	*/
	case WM_MYMESSAGE:
		/*Do some stuff*/
	default:
		return DefWindowProc (hwnd, message, wParam, lParam);
    }
    return 0;
}

So far so good. Now when I compile I get the following little message:

"case label `WM_MYMESSAGE' does not reduce to an integer constant"

Now, personally, I thought that a "const UINT" was an integer constant, but
clearly g++ disagrees. The funny thing is I have used similar code with VC++
v6 and not had the same problem. Any ideas of how I can convince g++ that
this is the case would be appreciated.

_____________________________
Marc Heiligers

PS. I've had coffee before I wrote this, so I'm pretty sure I'm thinking
straight (for a change).

[Dev-C++] trying again - compiling with getops() gives linking error?

[Arnvid K. <ar...@ka...>]

Heya.

Whenever trying to use the function getopts() in a program the linker
kindly says that it can't find any refrence to the options getopts (or
getops_long for that matter).. Anyone else seen this, or someone might
know a remedy?



Mvh/Best regards,

Arnvid L. Karstad

[Dev-C++] error message: cannot find -lstdc++

[<h.r...@gm...>]

sorry for my last posting, i forget to change the subject

-- 
Horst Rößner
Postf. 1802
52205 Stolberg

ICQ ID #74808448
h.r...@gm...
h.g...@t-...
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RE: [Dev-C++] Number of elements of a multidimensional array

[<h.r...@gm...>]

Hi List,

I know, it's bad style to ask the same question twice, but the problem still
remains.
If i compile a program i get the error message:

Compiler: Default compiler
Building Makefile: "E:\dev\dev-c++\proj2\Makefile.win"
Führt  make... aus
make.exe -f "E:\dev\dev-c++\proj2\Makefile.win" all
g++.exe ../proj2/main1.o ../proj2/procabi.o ../proj2/readdata.o
../proj2/writedata.o ../proj2/intro.o ../proj2/datei.o ../proj2/inout.o  -o
"testproj1.exe" -L"C:/Dev-Cpp/lib" -L"E:/dev/dev-c++/proj2"  -I"C:/Dev-Cpp/include" 
-I"C:/Dev-Cpp/include"  -I"C:/Dev-Cpp/include/c++/3.2"  -I"E:/dev/dev-c++/proj2"  
-mcpu=pentium -fexceptions -s

C:\Dev-Cpp\bin\..\lib\gcc-lib\mingw32\3.2\..\..\..\..\mingw32\bin\ld.exe:
cannot find -lstdc++

make.exe: *** [testproj1.exe] Error 1

Ausführung beendet

It would be great if anyone has a hint about it.
Many Thanks

Horst

-- 
-- 
Horst Rößner

ICQ ID #74808448
h.r...@gm...
h.g...@t-...
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[Dev-C++] How to use MySQL

[<fer...@te...>]

Hi all!
Can someone tell me the way I do to use mysql on my application?
I use 4.9.6 in Windows Millenium. I´m learning how to use GTK and want 
make an application that uses mysql too.

Thanks

Fernando Conceição

RE: [Dev-C++] powerpc compiler options for gcc

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

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Manpreet Singh Vasir
> Sent: Saturday, November 30, 2002 7:53 PM
> To: dev...@li...
> Subject: [Dev-C++] powerpc compiler options for gcc
> 
> 
> Hi ,
> 
> I have just started being interested in "Dev-Cpp". I
> have version 4.9.5.0 which has gcc compiler version
> 2.95.3-6. I am running it on windows XP and want to
> cross compile my source code for powerPC processor. I
> have referred all site notes on gcc (nearly), have
> found the compiler option like "-mpowerpc,
> -mpowerpc64, -m601 "etc..... But they just dont
> work!!!!!!! 
> 
> I get this error message :
> 
> "Invalid option `powerpc' "
> 
> 
> Any clues why? Is it my configuration?


To see the available options give gcc --help -v

To redirect it to a file to check it easily give

gcc --help -v >temp.txt

and open temp.txt to read it.



Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL: http://run.to/noicys

[Dev-C++] type mismatch

[Nathan B. <na...@ps...>]

When writing a basic program to perform a calcuation I have set types as =
float to receive input (cin).  When I enter a character (not a number) =
when prompted for input the program terminates.  This happens even when =
using exception handling

    cin.exceptions(cin.failbit);
    try{  }
    catch (...) {   };

I've enabled exception handling via compiler options but this does not =
help?  Can anyone offer any comments on how to avoid program termination =
when type mismatch occurs?

Thanks, Nate

[Dev-C++] powerpc compiler options for gcc

[Manpreet S. V. <ms...@ya...>]

Hi ,

I have just started being interested in "Dev-Cpp". I
have version 4.9.5.0 which has gcc compiler version
2.95.3-6. I am running it on windows XP and want to
cross compile my source code for powerPC processor. I
have referred all site notes on gcc (nearly), have
found the compiler option like "-mpowerpc,
-mpowerpc64, -m601 "etc..... But they just dont
work!!!!!!! 

I get this error message :

"Invalid option `powerpc' "


Any clues why? Is it my configuration?

Thanks in advance

Manpreet

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Re: [Dev-C++] include of selfcreated libraries

[Luigi S. <gi...@li...>]

On Wed, Nov 27, 2002 at 12:17:44PM +0100, Frank Wagner wrote:
> Hello,
> 
> I wrote some classes that I don't want to include to new projekts every
> time. So I created a directory ../inlcude and put in the foo.h files
> containing the classes. Then I compiled the the foo.cpp building a
> library named foo.a.
> At the linker options I put in a -l foo.a but while compiling a new
> projekt that sould use that new library I get a linker error.
> What is neccessary to linkt the lib file? Is it neccessary to name the
> libfile libfoo.a or someone else ??
> 
> Any suggestions?? Whats with the foo.so is this essential?
> 
> I hope somewone can give me a hint.
> 
> Greetings
> 
> Frank

Hi Frank,

I assume you are using linux (because of the "../include" you wrote).

As you surely know, libraries come in two flavors: static and shared. 
Generally, static ones are name "libfoo.a", while shared ones are named
"libfoo.so". Shared libraries are called "dynamic link libraries" in the 
Microsoft world.

There are 2 ways to link a "main" against some (static) library (assuming
that the library is located in the same directory as the "hello.c" file):
- using the command "cc -o hello hello.c libfoo.a"
- using the command "cc -o hello hello.c -lfoo -L."

Hope the above is of help.
-- 
>> gisan >>

Re: [Dev-C++] Too many files in project

[Carlos d. M. <cg...@wo...>]

When a project has many files the parsing takes very long, it was
recommended turn off parsing.

Christer Sandberg escribi=F3:

> I just started to use DevC++ 4.9.6.0
> When I created a project and added all my files
> into it (marking all of them at once in the file
> selecteor) it crashed. I tried again but this time
> I added just a couple of files each time, and it
> worked.
> When I now re-open the project it crashes every
> time. Trying to cut off some of the files seems
> to work when there are at most 53 files. 55 files
> or more crashes always. 54 may work.
> I have a win98 box 128M memory. Using default
> setting in a WinMain project.
>
> Anyone that have an idea how to work around this?
> Strange enough there seems to be nothing on the
> bug-list.
>
> Traceback:
> DEVCPP orsakade ett ogiltigt sidfel i
> modul DEVCPP.EXE p=E5 adress 017f:00406be1.
> Registrerar:
> EAX=3D00407f04 CS=3D017f EIP=3D00406be1 EFLGS=3D00010283
> EBX=3D00407f04 SS=3D0187 ESP=3D0078fe38 EBP=3D007903c8
> ECX=3D00000001 DS=3D0187 ESI=3D007903c4 FS=3D0f1f
> EDX=3D007903c4 ES=3D0187 EDI=3D007904c8 GS=3D0000
> Byte p=E5 CS:EIP:
> 68 00 04 00 00 8d 44 24 04 50 8b 43 04 50 8b 03
> Stackdump:
>
> /C
>
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[Dev-C++] Too many files in project

[Christer S. <chr...@md...>]

I just started to use DevC++ 4.9.6.0
When I created a project and added all my files=20
into it (marking all of them at once in the file
selecteor) it crashed. I tried again but this time=20
I added just a couple of files each time, and it=20
worked.=20
When I now re-open the project it crashes every=20
time. Trying to cut off some of the files seems
to work when there are at most 53 files. 55 files
or more crashes always. 54 may work.
I have a win98 box 128M memory. Using default=20
setting in a WinMain project.

Anyone that have an idea how to work around this?
Strange enough there seems to be nothing on the
bug-list.

Traceback:
DEVCPP orsakade ett ogiltigt sidfel i
modul DEVCPP.EXE p=E5 adress 017f:00406be1.
Registrerar:
EAX=3D00407f04 CS=3D017f EIP=3D00406be1 EFLGS=3D00010283
EBX=3D00407f04 SS=3D0187 ESP=3D0078fe38 EBP=3D007903c8
ECX=3D00000001 DS=3D0187 ESI=3D007903c4 FS=3D0f1f
EDX=3D007903c4 ES=3D0187 EDI=3D007904c8 GS=3D0000
Byte p=E5 CS:EIP:
68 00 04 00 00 8d 44 24 04 50 8b 43 04 50 8b 03=20
Stackdump:

/C

Re: [Dev-C++] I need some decent GUI libraries for Windows and Linux

[Shayne K. <err...@ne...>]

There are several tutorials on the wxWindows.org website.  Check them out,
as it is essential to learn how to use wxWindows.  wxWindows is more of a
binding tool that lets you use the GTK widgetset or win32.  Another thing
to do is create a new UI (wxWindows) project and just compile the basic
program template shipped with the wxWindows package in dev-cpp

-- Shayne

http://www.shaynekasai.com

On Fri, 29 Nov 2002, Ionescu Vasile wrote:

> First, I'm a newbie in C++ programming but I'm a fan
> of Open Source, LGPL'ed software.
> So, I installed Dev-C++ 4 (latest stable), the
> wxWindows libraries and 2 or 3 tutorials about
> wxWindows. This tutorials looks great, but I'm totally
> confused about how can I have a decent GUI toolkit.
> In this moment, I'm ready to receive any
> recommendation, tutorial, paper etc. about how to
> install a GUI library for Windows and Linux with
> Dev-C++, with ONE condition: this material must be
> EXPLICIT and with a little example.
> Could anyone give me a hand of help?
>
> Thanks,
>        Glass
>
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[Dev-C++] I need some decent GUI libraries for Windows and Linux

[Ionescu V. <hmm...@ya...>]

First, I'm a newbie in C++ programming but I'm a fan
of Open Source, LGPL'ed software.
So, I installed Dev-C++ 4 (latest stable), the
wxWindows libraries and 2 or 3 tutorials about
wxWindows. This tutorials looks great, but I'm totally
confused about how can I have a decent GUI toolkit.
In this moment, I'm ready to receive any
recommendation, tutorial, paper etc. about how to
install a GUI library for Windows and Linux with
Dev-C++, with ONE condition: this material must be
EXPLICIT and with a little example.
Could anyone give me a hand of help?

Thanks,
       Glass

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Re: [Dev-C++] default compiler

[Carlos d. M. <cg...@wo...>]

Lahsen BAALI escribi=F3:

>         Hello,
>
>         I use dev-cpp 4.9.6.0 with a default compiler g++-3.
>         What's difference between g++ and gcc?

g++ is for C++ and gcc for  C, but you can use both for any kind, since i=
t will
compile fine, if you do gcc file.cpp it calls to g++.

>
>         I downlaod MinGW32 and i want use gcc-3-2 like defaut compiler =
for dev-cpp
> 4.9.6.0. How use MinGW32 with dev-cpp and how choice gcc-3-2 like defau=
lt
> compiler?

Go to Tools->Compiler->programs and fill the fields there..

>
>         Thunks.
>
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Re: [Dev-C++] Question about dev c++ 4.9.6.0

[Ricardo R. <ri...@po...>]

Try with <conio.h>, perhaps it can work,
if not with <conio_mingw.h>.

[Dev-C++] Executables won't run from Dev-C++ 4

[Kenneth B. <ken...@ya...>]

I am running Dev-C++ on a x86 Win 2K machine.  I have been writing programs all term and things have compiled and run just fine.  I really hate to say this, because It drives me nuts when someone else has a problem an they ask me for help, and they give me the proverbeal "I don't know what happned"!  Something always causes things to happen... However, something happened, and I don't know what...  and now I cannot compile and run my source except in my root directy C:\.  Dev-C++ is compiling the code, it just won't run the executable file. I can navagate to the directory and run the file from its directory, just not when Dev-C++ compiles.

Also, I have tried uninstalling & Reinstalling Dev-C++ I even tried Dev-Cpp but nothing has helped thus far.

KB



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RE: [Dev-C++] STL problem

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

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Marcos Carrard
> Sent: Thursday, November 28, 2002 9:11 PM
> To: dev...@li...
> Subject: [Dev-C++] STL problem
> 
> 
> Hi!
> 
> I have a little problem with Dev in STL library. The problem is in 
> priority_queue  with declaration of function object for 
> relational test. 
> The source code is:
> 
> #include <iostream>
> #include <queue>

// for less<>
#include <functional>

// See below
#include <vector>

> 
> using namespace std;
> 
> int main()
> {
>     typedef priority_queue< int, less<int> > IntPQueue;   // HERE!!!!


priority_queue has 3 types, the 2 last having defaults:

The second is the vector<> where it stores the elements and the third is
the less<> which by default uses <.

In few words your less is redundant (and may even induce additional time
cost). So if you want to define the third argument you have to define
the second too:

typedef priority_queue< int, vector<int>, less<int> > IntPQueue;



Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL: http://run.to/noicys

RE: [Dev-C++] Number of elements of a multidimensional

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

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Carlos Garc=EDa del Monte
> Sent: Thursday, November 28, 2002 6:54 PM
> To: dev-cpp-users-list
> Subject: Re: [Dev-C++] Number of elements of a multidimensional
>=20
>=20
> The sizeof applied to a array will give you the size of a=20
> pointer, never
> the size of the array.
> Say char *array; or char array[];

As a function argument, because only then the second is a pointer.
Inside the scope of its definition, a

char array[]=3D"12345678901234567890";


size_t x=3Dsizeof(array);


x will always be 21  (the '\0' included).



However in void f(char array[]);


is equivallent to void f(char *);


so you can do array++; for example because all tthese are ponters.


You can do that even in the case:


void f(char array[20])
{
 /* The !=3D'\0' is not needed */
 while(*array!=3D'\0')
   *array++=3D'a';
}

All "array" arguments of functions are pointers but we can use the array
syntax for notational purposes.



> Then sizeof(array) =3D 4. (at least in my intelIII x86, with win2k 4 =
is
> the size for any kind of pointer).
>=20
> The only solution is to have some special value for the end of the
> array. Which for strings is '\0', and you can try to set another
> depending on which kind of data you're working with and which range of
> values you can find, so you can then choose on of the values which are
> out of the range to set as that special value. So you can reach for it
> and you can then now, with the approppriate functions you can=20
> write the
> total size of the array and the size of each row of the=20
> multidimensional
> array.


Yes he has to "remember" the size of the array when he passes it across
functions, even by passing the sizes as additional arguments, or other
tricks.


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