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

Re: [Dev-C++] Most Likely FAQ....Question on wxWindows

[Rafael C. <cha...@un...>]

Have you tried
http://www.wxwindows.org/?


Dwayne Miller wrote:
> Ok, sorry if this is in an FAQ someplace, I searched the past two 
> evenings for help, to no luck.
> 
> I am looking for some form of How To, or tutorial on using wxWindows 
> under Dev-Cpp.
> 
> I have succesfully installed it, and it works, both Dev-Cpp and 
> wxWindows DevPack.  I just have no idea where to start learning how to 
> use it. I have a working knowledge of C, and a smattering of C++ but 
> have never ever programmed for windows, only console.
> 
> Any help appreciated.
> 
> Thanks,
> Dwayne Miller
> Barberton, Ohio
> 
> 
> 
> 
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[Dev-C++] General question / remark

[Janos B. <jb...@gm...>]

After having played with Dec-C++ for a few days, here is what I see:
The IDE that Dev-C++ is so good that I should probably never use Emacs for 
programming any more. It (Dev-C++) is so much better than MVC++6.

So the only problem (as far as I and probably many other people are 
concerned) is the lack of a decent debugger. I do not know how difficult it 
is to write a MVC++6 style debugger but that debugger is excellent.
Now I just thought: The Watcom sources should be be free by now; so 
wouldn't it be possible to look at that code and learn how they implemented 
their debugger (which almost paralleled the MVC++ debugger) and write your 
own debugger. Taken the genuine devotion of the Dev-C++ team (othwewise 
they could not have created such a nice product) it would be only a 
question of until they woul produce even a better debugger.

Is this suggestion completely stupid? Is any work being done on a debugger 
vor Dev-C++?

(As for the quality of the compiler, for most applications it is not that 
decisive.)

At the moment I use Dev-C++ and for the tricky parts MVC++6. Anyway, thx 
for this great product.

-- 
EG

Re: [Dev-C++] missing ";"

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

Yes knowing that you are using the hungarian keyboard is important (at least 
I think it is!!!).

So the semicolon works fine in all applications except in dev-c++ ? The only 
thing I'd recommend is changing your settings in control panel to use a 
different character set for your keyboard. I'm afraid I'm not sure what else 
you could do.

Oh hang on, have you tried typing ; in notepad or somewhere, and in Dev-C++ 
doing a paste to put the semi colon in? What happens this way? Does the semi 
colon appear, or do you get nothing, or some garbage character? Could be to 
do with unicode/dbcs/ascii perhaps.

I'm just guessing here.


>From: Neszt Tibor <ne...@ss...>
>To: Daniel Glenfield <sp...@ho...>
>CC: dev...@li...
>Subject: Re: [Dev-C++] missing ";"
>Date: Fri, 25 Apr 2003 15:22:52 +0200 (MET DST)
>
> > ok let's find out a few things. If you open notepad or another text 
>editor
> > can you type a semi colon? If you can, you'll need to reinstall DEV. If 
>not,
> > you need to reinstall your OS or, if a special keyboard, the keyboard
> > driver.
>
>Reinstall OS :-)))))
>
>Oh, funny, You don't understand me. Of course, I can type semicolon all of
>my other programs. Need to reintall devc++? How many times? If You read
>my letter thoughtfully, You can see, I tried many version of devc++.
>Moreover! In the meantime, I tried to install devc++ to 4 other computers,
>and the semicolor is missing on all of them.
>I'm sure the problem is NOT in the devc++.
>I use hungarian keyboard, if it is important. (Any other hungarian user
>here?)
>
>Regards,
>
>  Neszt Tibor
>
>P.s.: To see, I can type semicolon here... ;;;;;;;;;;;
>
>:-)))
>


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Re: [Dev-C++] missing ";"

[Neszt T. <ne...@ss...>]

> ok let's find out a few things. If you open notepad or another text editor 
> can you type a semi colon? If you can, you'll need to reinstall DEV. If not, 
> you need to reinstall your OS or, if a special keyboard, the keyboard 
> driver.

Reinstall OS :-)))))

Oh, funny, You don't understand me. Of course, I can type semicolon all of
my other programs. Need to reintall devc++? How many times? If You read
my letter thoughtfully, You can see, I tried many version of devc++.
Moreover! In the meantime, I tried to install devc++ to 4 other computers,
and the semicolor is missing on all of them.
I'm sure the problem is NOT in the devc++.
I use hungarian keyboard, if it is important. (Any other hungarian user
here?)

Regards,

 Neszt Tibor

P.s.: To see, I can type semicolon here... ;;;;;;;;;;;

:-)))

Re: [Dev-C++] stdin reset...

[<ca...@kr...>]

> -stdin gets cleared
> how can i do that?

fflush(stdin);

just found out how.. thanks anyway!
 
gruss
/Christian                   mailto:ca...@kr...

---


I propose that the following character sequence for joke markers:

:-)

                             19-Sep-82 11:44    Scott E  Fahlman

[Dev-C++] stdin reset...

[<ca...@kr...>]

hi dev-cpp-users,

I try the following code:

<snip>
#include <stdio.h>

int main(int argc, char** argv)
{
    char buffer[5];
    while(1)
    {
        printf("prompt > ");
        scanf("%4[^\n]",buffer);
    
        printf("you typed: %s\n", buffer);
        printf("you typed: %d %d %d %d %d\n", buffer[0], buffer[1], buffer[2], buffer[3], buffer[4]);
    }

    return 0;
}
</snap>

but it obviously doesn't work.
I want to emulate a console behaviour.
so that whenever you press <ENTER>
-the just typed letters (only 4 of them) get placed in buffer (with a
terminating 0)
-buffer gets printed
-buffer gets cleared
-stdin gets cleared
-new prompt waiting for input ()

how can i do that?

gruss
/Christian                   mailto:ca...@kr...

---


I propose that the following character sequence for joke markers:

:-)

                             19-Sep-82 11:44    Scott E  Fahlman

Re: [Dev-C++] missing ";"

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

Have you tried using 'j' instead? It looks similar to the semi colon.


ok let's find out a few things. If you open notepad or another text editor 
can you type a semi colon? If you can, you'll need to reinstall DEV. If not, 
you need to reinstall your OS or, if a special keyboard, the keyboard 
driver.






>From: Neszt Tibor <ne...@ss...>
>To: dev...@li...
>Subject: [Dev-C++] missing ";"
>Date: Fri, 25 Apr 2003 09:32:51 +0200 (MET DST)
>
>Hello!
>
>I was satisfied with devc++4. That's why I not upgraded to a newer
>version. Now, I installed the lastest one (4.9.8.0), and the first I
>realized, I cannot type the ";" semicolon, because I can not find..
>I was in surprise, and I tried some of older versions (4.9.2.0, 4.9.6.0,
>4.9.7.0), with no result.
>
>It is a trick?
>
>Please help me, to get back my dear semicolon.. :)
>
>Thanks Your help in advance,
>
>Regards,
>
>Neszt Tibor
>
>P.s.: Of course, I tried all of my keys, and looked over the whole
>devc++ settings, and the windows keyboards settings.
>
>
>
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RE: [Dev-C++] icons

[Mark S. <mar...@li...>]

loads of icon collections here:
http://www.pcworld.com/downloads/file_description/0,fid,4281,00.asp


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Re: [Dev-C++] Bitmaps

[Yeoh H. <ye...@ye...>]

----- Original Message ----- 
From: "Ioannis Vranos" <iv...@em...>
To: "Dev-C++ Mailing List" <dev...@li...>
Sent: Friday, April 25, 2003 2:59 PM
Subject: [Dev-C++] Bitmaps


> Does anyone know any site with free bitmaps and icons suitable for
> programming? (file open, print etc ones).
> 
> 
> 
> 
> Regards,
> 
> Ioannis Vranos
>  
> * Programming pages: http://www.noicys.freeurl.com
> * Alternative URL 1: http://run.to/noicys
> * Alternative URL 2: http://www.noicys.cjb.net
> 
> 
> Anti-racism movement: http://www.positive-youthfoundation.org
> Iraq Peace Pledge: http://www.peacepledge.org
> 
> 
> 
> 
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Try this site:
http://www.aha-soft.com/iconlibs.htm

Best Regards,
Yeoh
--
http://www.yeohhs.com

[Dev-C++] HI

[Dondolo M. <MDo...@OL...>]

Hi Guys,

Can anybody help me. I need a code that will be able to read and display the
model, make, and other stuff of hardware. For example, the info your
harddrive, CDROM, Memory .ect.ect.ect. 

I want to understand how to communicate with your hardware.

Regards,

Mpho Dondolo
Support Analyst
Computer Sciences Corp. (CSC) 
Tel: +27 21 503 0059
Fax: +27 21 509 5619
Cell: +27 84 337 1468
mdo...@cs...
mdo...@ol...

[Dev-C++] (no subject)

[Christian W. <Chr...@vo...>]

Hi List,



in the good old days of DOS we had the possibility to check the state of the
RS232 ports.

(In Basic I have tested if GND and another port was connected inp(PORT +
PIN) )...

How can i realise that in cpp under win32 ???

I have to check if a circuit is closed  (alert system)...


I know that you can not longer get direct access to the hardware ...



does any one have an idea or better an example ???



kind regards 

[Dev-C++] missing ";"

[Neszt T. <ne...@ss...>]

Hello!

I was satisfied with devc++4. That's why I not upgraded to a newer
version. Now, I installed the lastest one (4.9.8.0), and the first I
realized, I cannot type the ";" semicolon, because I can not find..
I was in surprise, and I tried some of older versions (4.9.2.0, 4.9.6.0,
4.9.7.0), with no result.

It is a trick?

Please help me, to get back my dear semicolon.. :)

Thanks Your help in advance,

Regards,

Neszt Tibor

P.s.: Of course, I tried all of my keys, and looked over the whole
devc++ settings, and the windows keyboards settings.

[Dev-C++] Bitmaps

[Ioannis V. <iv...@em...>]

Does anyone know any site with free bitmaps and icons suitable for
programming? (file open, print etc ones).




Regards,

Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL 1: http://run.to/noicys
* Alternative URL 2: http://www.noicys.cjb.net


Anti-racism movement: http://www.positive-youthfoundation.org
Iraq Peace Pledge: http://www.peacepledge.org

[Dev-C++] Xwindows Programming

[Smitha V. B. <smi...@so...>]

Hi, all
I am new to Xwindows programming and linux...
Is it possible to do X windows programming using telnet...
Where i will get good guide to X windows programming...
Thanking in advance
with regards
Smitha
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[Dev-C++] Most Likely FAQ....Question on wxWindows

[Dwayne M. <dmi...@ne...>]

Ok, sorry if this is in an FAQ someplace, I searched the past two 
evenings for help, to no luck.

I am looking for some form of How To, or tutorial on using wxWindows 
under Dev-Cpp.

I have succesfully installed it, and it works, both Dev-Cpp and 
wxWindows DevPack.  I just have no idea where to start learning how to 
use it. I have a working knowledge of C, and a smattering of C++ but 
have never ever programmed for windows, only console.

Any help appreciated.

Thanks,
Dwayne Miller
Barberton, Ohio

[Dev-C++] RE: Localization ?

[jp <rar...@xt...>]

C++ locales use facets as template parameters to the std::ios classes.
facets are a fascinating topic and worth checking out.
you can easily make your own locale, and drop it in the iostream =
heirarchy.

There's some good stuff on locales and facets on the Dr Dobbs site, in =
an expert's column on iostreams, by a woman whose name I've forgotten, =
who also has a book on the same subject. I cld find it in 2 minutes, but =
I haven't got 2 minutes. Interesting discussion of streambufs as well...

also here's some stuff...
http://www.cantrip.org/locale.html

ever heard of google?

jp

[Dev-C++] RE: slowing down program to avoid segmentation fault

[jp <rar...@xt...>]

help. can't breath. need source...

It's not a threading issue..

My guess is that the problem is still there, its just yr sort is trampling
on less sensitive memory from its differnt location in code space, or maybe
the call to get() forces some static data to be initialized. Where is the
matrix defined? If its static or global, try making it local...


> I'm facing a problem that I have to slow down my program
> to avoid a segmentation fault
....

 > Regards,

 > Kris

[Dev-C++] is the preprocessor considered harmful?

[jp <rar...@xt...>]

Hi,

This isn't a Dev-Cpp question, but I'd be interested in anyone's thoughts...

If I'm using C++, I avoid using the preprocessor for anything except
#include's and #pragma's.

The directives I most despise are #line, as suffered by users of lex/yacc,
esql, and other source code generators, and ...

#ifdef ENTIRELY_STUPID_FEATURE_FOR_ANNOYING_CLIENT
void stupid();
#endif

If I need a constant I use, eg, enum{SOMETHING=0xffffffff}; One of the
benefits is that such constants are scoped. It bugs me when I want, eg,
enum{ERROR=0xffffffff}; and ERROR has already been #defined in a header...
Sometimes, wash my mouth out, I #undef, eg, ERROR..

If I need a macro I use...
template <typename someT> void xargle( someT& thing)
    {
        xargle_buffer << thing;
    }

BUT, and here's the point of my question, I don't know of any way to
stringize or token paste without using the preprocessor.  I have a lisp. Not
literally, like thith, but a library I've written. Built in types are
instantiated using templates, so that, given a constant type id (eg:
INTEGER), I can add a new type like so..

DECLTYPE(int, INTEGER, Integer)

the macro DECLTYPE looks like this...

#define DECLTYPE(T, I, n)typedef imp::ImplObject<T, I> n;\
 bool is##n(const Object &obj);\
 const T &get##n(const Object &obj);\
 T &ref##n(const Object &obj);

and there is an equally brief IMPLTYPE.
The library allows constructions like..

Object thing = String("gimme five: ");
String s = thing;
Integer i = 4;
thing = i;

    refInteger(thing)++;
    cout << s << thing;

==========================================
This all works pretty well, and my lisp handles multimedia, ISAM, COM,
sockets and other exotica in a fully object oriented, but typesafe, manner.
But FUNGLTYPE is a macro, and like I say, #define's are for grannies, so..
..does anybody know of an alternative to macros for generating identifiers
from user supplied fragments?

Cheers,
jp.

RE: RE: [Dev-C++] c or c++. that is the question

[Ioannis V. <iv...@at...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Krzysztof Kapuscik
> Sent: Thursday, April 24, 2003 4:10 PM
> To: Dev...@li...
> Subject: Fwd: RE: [Dev-C++] c or c++. that is the question
> 
> 
> This is not exactly right. One of the reasons why the C++ code could
> be larger/slower than C one (not much, just a bit) is that for every
> object the '*this' pointer is added to function params. Just putting
> it one the stack takes a bit of time and a bit of space...
> 
> Why people need to use C sometimes instead of C++? Because there are
> many platforms (especially microcontrollers) for which there is a
> C compiler but no C++ is available. Also the object-oriented (C++)
> programming (with analysis, optimization) is more complicated than
> programming without objects.


If a "this" pointer is considered too costly to you then don't use objects
in your C++ code. Do you believe that C is better than the procedural
paradigm of C++ (the C-subset?).




Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL 1: http://run.to/noicys
* Alternative URL 2: http://www.noicys.cjb.net


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Iraq Peace Pledge: http://www.peacepledge.org

RE: [Dev-C++] c or c++. that is the question

[Ioannis V. <iv...@at...>]

> -----Original Message-----
> From: Daniel Glenfield [mailto:sp...@ho...] 
> Sent: Thursday, April 24, 2003 12:02 PM
> To: iv...@at...; Dev...@li...
> Subject: RE: [Dev-C++] c or c++. that is the question
> 
> 
> what about
> #ifdef __cplusplus
> //...code
> #endif
> 
> or is that something that our company has created themselves?



It is an extension of the implementation. extern "C" when applied to a C++
definition creates an object file with C linkage.



Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL 1: http://run.to/noicys
* Alternative URL 2: http://www.noicys.cjb.net


Anti-racism movement: http://www.positive-youthfoundation.org
Iraq Peace Pledge: http://www.peacepledge.org

[Dev-C++] slowing down program to avoid segmentation fault

[Kris N. <kri...@ag...>]

Dear all,

I'm facing a problem that I have to slow down my program to avoid a 
segmentation fault - or at least that is how I interprete my problems. I 
have a class function that sorts a matrix. When I put cin.get(); before 
this function, the function works. When I remove cin.get();, I get a 
segmentation fault. A few lines further it works without any problems in 
a for() routine.

Strange enough the cout function one line after my sort function always 
works. I get the impression, but am not a profressional programmer, that 
functions run more or less simultaneously. It looks as if cout is 
started before the sort function is finished. Has it something to do 
with threading, I heard about it, never looked at it.

Has anyone an idea what's going on, probably it's quite obvious for a 
professional? Are there good references where I can find more information?

Regards,

Kris

-- 
------------------------------------------------------------------------
 
 http://perswww.kuleuven.ac.be/~u0027178/VCard/mycard.php?name=krisn
 
------------------------------------------------------------------------
 Minds are like parachutes, they only work when open

Fwd: RE: [Dev-C++] c or c++. that is the question

[Krzysztof K. <sa...@op...>]

> Khalid
> >Ioannis wearing his bullet-proof vest:
> >
> >
> >Keep in mind that the prevalent X-Window library now is a 
> C++ one. Also
> >most
> >new GNU/Linux programs are being written in C++ these days...
> >
> >
> >File sizes for the hello world program should not be different.
> >

This is not exactly right. One of the reasons why the C++ code could
be larger/slower than C one (not much, just a bit) is that for every
object the '*this' pointer is added to function params. Just putting
it one the stack takes a bit of time and a bit of space...

Why people need to use C sometimes instead of C++? Because there are
many platforms (especially microcontrollers) for which there is a
C compiler but no C++ is available. Also the object-oriented (C++)
programming (with analysis, optimization) is more complicated than
programming without objects.

-- 
Have a nice life,
 Krzysztof

mailto:sa...@op...
http://www.saveman.w.pl

RE: [Dev-C++] c or c++. that is the question

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

what about
#ifdef __cplusplus
//...code
#endif

or is that something that our company has created themselves?



>From: "Ioannis Vranos" <iv...@at...>
>To: <Dev...@li...>
>Subject: RE: [Dev-C++] c or c++. that is the question
>Date: Wed, 23 Apr 2003 07:53:06 +0300
>
> > -----Original Message-----
> > From: dev...@li...
> > [mailto:dev...@li...] On Behalf
> > Of Khalid El-Kary
> > Sent: Wednesday, April 23, 2003 7:19 AM
> > To: Dev...@li...
> > Subject: RE: [Dev-C++] c or c++. that is the question
> >
> >
> > One question:
> >
> > is there a extern "C++" like there's extern "C" ?
> >
> > if there's isn't, C code will be more useable, for both C++
> > and C programms.
> > (?)
> >
> >
> > Khalid
>
>
>extern "C" works both ways!
>
>
>If you want to use your C++ code in C programs, enclose the C++
>*definitions* inside extern "C" blocks.
>
>
>
>
>Ioannis Vranos
>
>* Programming pages: http://www.noicys.freeurl.com
>* Alternative URL 1: http://run.to/noicys
>* Alternative URL 2: http://www.noicys.cjb.net
>
>
>Anti-racism movement: http://www.positive-youthfoundation.org
>Iraq Peace Pledge: http://www.peacepledge.org
>
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
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RE: RES: [Dev-C++] generated .exe is too big

[Ioannis V. <iv...@at...>]

> -----Original Message-----
> From: Per Westermark [mailto:pw...@ia...] 
> Sent: Thursday, April 24, 2003 6:11 AM
> To: Ioannis Vranos
> Cc: Dev-C++ Mailing List
> Subject: RE: RES: [Dev-C++] generated .exe is too big
> 
> 
> _Bool does not increase size of final executable.
> 
> _Complex and (possibly) long long increases the size of the 
> executable -
> but only for executables that needs them, and then it can 
> hardly count. An
> opengl executable is larger than a hello world, but that isn't a
> deficiency of opengl but just that the opengl application 
> solves a harder
> problem.
> 
> Without the _Complex data type, you have to implement - or 
> link through an
> existing library - your own complex math. And by doing that, the
> application has to be larger or the application wouldn't work.
>
>[...]


I did not say that complex type existence is bad (although I do not like to
provide whatever type one can imagine as built in). I posted my theory why
the C99-compliant MINGW 3.x produce larger executables than 2.95.x ones.


I think it is because of the the new built in types and library facilities
(for example printf() got larger to support the new types and changes).




Ioannis Vranos
 
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL 1: http://run.to/noicys
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RE: RES: [Dev-C++] generated .exe is too big

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

Forgot a comment. See below

/Per W

On Thu, 24 Apr 2003, Ioannis Vranos wrote:

> > -----Original Message-----
> > From: Per Westermark [mailto:pw...@ia...]
> > Sent: Thursday, April 24, 2003 5:26 AM
> > To: Ioannis Vranos
> > Cc: Dev-C++ Mailing List
> > Subject: RE: RES: [Dev-C++] generated .exe is too big
> >
> >
> > The changes for C99 should not make a real difference in quality of
> > mapping against hardware.
> >
> > [...]
> >
> > _Complex operators needs either multiple assembler
> > instructions or calls
> > to helper functions, to handle all combinations of NaN and
> > infinities. No
> > difference from support of float and double on a processor without fp
> > support. Linker wouldn't add these helper functions unless needed.
>
>
> Yes but there are processors with fp support. However there isn't any with
> complex support.
>

General purpose processors have a bit of lack of this support, but a
number of DSP processors do have built-in data types for complex numbers
since they are used in FFT evaluations etc. In this case, the _Complex
data type makes C code more portable. Previous implementations has had to
add non-standard additions for handling this data type.

In the same way, a number of processors have 1-bit variables. When
programming the 8051 processor, one compiler I have been using have added
the extra keyword bit just to allow the use of these variables. Now it
gets defined in the base language, allowing easy portability to other C
vendors having a compiler for that processor.

It should be noted that while C++ is more used on PC-class hardware and
upwards, C is very large in the embedded market, and the guys implementing
these compilers have a tough time constantly adding extra data types and
keywords just because the NEED to map the full capability set of the used
processor.

In desktop programming, we don't give a damn if the compiler ignores using
one or two exotic processor instructions but in the embedded market that
instruction might be the difference between a working and a non-working
application, and no designer designs in +10 - +50% higher chips multiplied
by 100k units to get an extra feature and not being able to use it.

With _Bool and _Complex data types, they might test-run the application on
their normal PC while developing, and then recompile the source with the
target compiler and make timing and final test runs on the real metal.

>
>
> > It isn't possible to add _Bool and _Complex as just typedef,
> > since it's a
> > question of giving the language the correct operators too. In C++ with
> > operator overloading we can add a _Complex type on our own,
> > but in C it
> > has to be made as a hard-coded data type.
>
>
>
> I mean they could avoid polluting the namespace. And what about size_t? In
> C99 it can be some type other than the provided standard built in ones, and
> yet is provided through header file only.
>
> In any case, these things do increase the size of the final executable.
>
>
> Ioannis Vranos
>
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