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

RE: [Dev-C++] Tree Graph Visualization Software

[Isaac E. W. <is...@wa...>]

I finally found the answer to my own question. If anyone is interested check
out http://www.graphviz.org/


-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Isaac E.
Wagner
Sent: Monday, January 24, 2005 2:04 PM
To: dev...@li...
Subject: [Dev-C++] Tree Graph Visualization Software

Does someone know of a library to create visualizations of tree-like
structures? I want to do something similar to what's shown in the file I am
attaching. I basically need to show the relationship between nodes in
graphical views.

Thanks!

Re: [Dev-C++] link problem with #include "unknwn.h"

[<wa...@wa...>]

On 3 Feb 2005 at 10:29, john C wrote:

> I'm getting a link error: Undefined reference to 'IID_IUnknown' ...
> this is mystifying me since I can clearly see the #def in the h file.
> Here's the compiler output:
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Compiler: Default compiler
> Building Makefile: "D:\Coding
> stuff\Dev-Cpp\Examples\MyShit\Makefile.win" Executing  make clean rm
> -f main.o Project2_private.res Project2.exe

Mingw doesn't like directory paths with spaces in them.  But when 
it's inconsistent about the error.   Try putting this in 
D:\CodingStuff\Dev-Cpp\Examples etc., etc.

I had the same problem because I was putting my code in a 
subdirectory of My Documents.  I had about 6 or 7 .h/.cpp files in 
this one project and I was able to compile them just fine... then out 
of the blue, it stopped working.  Couldn't figure it out for the life 
of me.  Then someone in another group told me about the problems it 
has with spaces.  Moved all my source to a spaceless directory path 
and... voila!... everything worked again.

Give it a shot.

Watson (the pencil neck) Davis

Re: [Dev-C++] how to check that a directory path exists?

[Jakob E. <mai...@ko...>]

If it's platform independence your looking for you could try PhysicsFS. =20
I've never used it myself (but I've heard good things about it) so I don'=
t =20
know if it can do what you want it to but it is a file-management library=
 =20
so It probably can.

http://icculus.org/physfs/

/Jakob Eklund

Den 2005-02-03 16:25:49 skrev Guillermo Gutierrez =20
<ggu...@ma...>:

> hello, I have not had too much luck finding a way to verify whether a =20
> directory path exists without using the WIN32 API calls. I need to chec=
k =20
> for the existence of a two directories in two different drives to see =20
> which path exists.
> Ex: The following are directories that I want to check for.
> 1. C:\FolderOne
> 2. D:\FolderOne
> 3. C:\FolderTwo
> 4. D:\FolderTwo
>
> I want to take which ever one exists, because I know for a fact that =20
> only one of these will be valid and exist.
>
> how can I do that without using WIN32 API calls or would it better to =20
> use the API calls?
> thanks in advance,
>
> Guillermo Gutierrez
> Market Scan Information Systems
> Software Q.A. Supervisor
> (818) 575-2000 x2427
> ggu...@ma...
>

Re: [Dev-C++] link problem with #include "unknwn.h"

[Alfred P. R. <al...@ya...>]

Since it's in .text, and your file compiled to an object file, my suggestion is to search for the text 'IID_IUnknown' in the lib folder of Dev-Cpp to see which file has that text.  It's both in libfltk.a and libuuid.a.  So, somehow, one of those files isn't being given to the linker, or the wrong one is being given to the linker.
 
Again, this is one of the beauties of GNU/Linux/Unix vs. DOS/Windows, the capability to easily do the above search with one command (grep)!

john C <zam...@ya...> wrote:
I'm getting a link error: Undefined reference to 'IID_IUnknown' ... this is
mystifying me since I can clearly see the #def in the h file. Here's the
compiler output:
<snip>
main.o(.text+0xa):main.cpp: undefined reference to `IID_IUnknown'
<snip>




Alfred P. Reaud
 

Re: [Dev-C++] auto refresh after key press

[spiro h. <spi...@gm...>]

> im just wondering if there is a command that allows input of 1 character
> then goes to the next event without having to press "Enter" 

yes there is. every C tutorial on the planet will tell you what it is.

http://rabbit.eng.miami.edu/info/functions/stdio.html

Have you heard of an incredible new concept called a Search Engine?
They really are quite wonderful and you might be surprised at the
knowledge hidden within them. The above link was found by "searching"
at one such "search engine" called Google.

Don't be scared. Give it a try.

-- 
"Here's a bucket, go and kick it."
  -- Kill Yourself (Stormtroopers of Death)

http://spiroharvey.blogspot.com

[Dev-C++] auto refresh after key press

[<Bah...@ao...>]

im just wondering if there is a command that allows input of 1 character then 
goes to the next event without having to press "Enter"

[Dev-C++] link problem with #include "unknwn.h"

[john C <zam...@ya...>]

I'm getting a link error: Undefined reference to 'IID_IUnknown' ... this is
mystifying me since I can clearly see the #def in the h file. Here's the
compiler output:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Compiler: Default compiler
Building Makefile: "D:\Coding stuff\Dev-Cpp\Examples\MyShit\Makefile.win"
Executing  make clean
rm -f main.o Project2_private.res Project2.exe

g++.exe -c main.cpp -o main.o -I"D:/Coding stuff/Dev-Cpp/include/c++/3.3.1" 
-I"D:/Coding stuff/Dev-Cpp/include/c++/3.3.1/mingw32"  -I"D:/Coding
stuff/Dev-Cpp/include/c++/3.3.1/backward"  -I"D:/Coding
stuff/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include"  -I"D:/Coding
stuff/Dev-Cpp/include"   

windres.exe -i Project2_private.rc --input-format=rc -o Project2_private.res -O
coff 

g++.exe main.o Project2_private.res -o "Project2.exe" -L"D:/Coding
stuff/Dev-Cpp/lib" -mwindows  

main.o(.text+0xa):main.cpp: undefined reference to `IID_IUnknown'

make.exe: *** [Project2.exe] Error 1

Execution terminated

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This problem is symptomatic of link errors that have baffled me my entire
career as a programmer. Can anyone help??

Thanks

JC 



	
		
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Re: [Dev-C++] how to check that a directory path exists?

[Alfred P. R. <al...@ya...>]

Use getcwd to save the current working folder, then test the return value of chdir to see if the folder in question was actually entered into.  I fought this for a while trying to use different methods that used stat, however only chdir appeared to work correctly.
 
getcwd and chdir are declared in direct.h and the usage can be found at the Microsoft Support site.

Guillermo Gutierrez <ggu...@ma...> wrote:

hello, I have not had too much luck finding a way to verify whether a directory path exists without using the WIN32 API calls. I need to check for the existence of a two directories in two different drives to see which path exists.
<snip>




Alfred P. Reaud
 

Re: [Dev-C++] stdio.h:330: error: ISO C++ does not support `long long'

[Alfred P. R. <al...@ya...>]

I'd say get rid of -pedantic.  Dev-Cpp supports cast long long just fine at 64 bits.  That the ISO C++ standard doesn't support that cast, is a true statement that has no meaning for your code's compilation.  Though I use -Wall and a few other warnings, I use neither -ansi nor -pedantic due to the reasons in your message.  ANSI compliant programs will compile without those switches.
 
Read the gcc(1) man page:

-ansi 

   Support all ANSI standard C programs. 
This turns off certain features of GNU C that are in-compatible with ANSI C, such as the asm, inline and typeof keywords, and predefined macros such as unix and vax that identify the type of system you are using.  It also enables the undesirable and rarely used ANSI tri-graph feature, and disallows `$' as part of identif- iers.  The alternate keywords __asm__, __extension__, __in- line__ and __typeof__ continue to work despite `-ansi'.  You would not want to use them in an ANSI C program, of course, but it is useful to put them in header files that might be included in compilations done with `-ansi'.  Alternate predefined macros such as __unix__ and __vax__ are also available, with or without `-ansi'. 
The `-ansi' option does not cause non-ANSI programs to be rejected gratuitously.  For that, `-pedantic' is re-quired in addition to `-ansi'. 
The preprocessor predefines a macro __STRICT_ANSI__ when you use the `-ansi' option.  Some header files may notice this macro and refrain from declaring certain functions or defining certain macros that the ANSI standard doesn't call for; this is to avoid interfering with any programs that might use these names for other things. 


Mahmoud Kassem <mah...@gm...> wrote:
Hello

When I added:
-ansi -pedantic -Wall
in the compiler options it gave me this error:
C:/My-Dev-Cpp/include/stdio.h:330: error: ISO C++ does not support `long long'

Regards,
Mahmoud Kassem
<snip>



Alfred P. Reaud
 

[Dev-C++] how to check that a directory path exists?

[Guillermo G. <ggu...@ma...>]

hello, I have not had too much luck finding a way to verify whether a =
directory path exists without using the WIN32 API calls. I need to check =
for the existence of a two directories in two different drives to see =
which path exists.
Ex: The following are directories that I want to check for.
1. C:\FolderOne
2. D:\FolderOne
3. C:\FolderTwo
4. D:\FolderTwo

I want to take which ever one exists, because I know for a fact that =
only one of these will be valid and exist.

how can I do that without using WIN32 API calls or would it better to =
use the API calls?
thanks in advance,

Guillermo Gutierrez
Market Scan Information Systems
Software Q.A. Supervisor
(818) 575-2000 x2427
ggu...@ma...

Re: [Dev-C++] Calling DLL from a visual basic application!

[Teboho N. <TNy...@cs...>]

Hi all,
I have managed to sort out my problem. Sorry for clustering your
emails.

Teboho


>>> "Teboho Nyareli" <TNy...@cs...> 03/02/2005 12:31:24 >>>
Hi, 
I was using Dev C++ 4.x.xx old version and I have upgraded to the new
version Dev C++ 4.9.9.1. I was able create a dll that I could call
functions  from VB when using the older Dev C++ version. How can I do
this with the new version. The new version creates the .dll, .def. But
the functions don't seem to be exported when I look at the .def file
for
exported functions. I use the syntax : extern "C" _stdcall in my c++
program.  

thanx in advance
Teboho



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[Dev-C++] Calling DLL from a visual basic application!

[Teboho N. <TNy...@cs...>]

Hi, 
I was using Dev C++ 4.x.xx old version and I have upgraded to the new
version Dev C++ 4.9.9.1. I was able create a dll that I could call
functions  from VB when using the older Dev C++ version. How can I do
this with the new version. The new version creates the .dll, .def. But
the functions don't seem to be exported when I look at the .def file for
exported functions. I use the syntax : extern "C" _stdcall in my c++
program.  

thanx in advance
Teboho

[Dev-C++] stdio.h:330: error: ISO C++ does not support `long long'

[Mahmoud K. <mah...@gm...>]

Hello

When I added:
 -ansi -pedantic -Wall
in the compiler options it gave me this error:
C:/My-Dev-Cpp/include/stdio.h:330: error: ISO C++ does not support `long long'

Regards,
Mahmoud Kassem

Re: [Dev-C++] Dynamic allocation vector debug display

[Alfred P. R. <al...@ya...>]

There's different options:
p *vector[i] // Which prints the value of vector i.
p *vector[3]
disp is another command that can be used.  There's a great manual for gdb in PDF format available at gdb documentation site.
 
BTW: I would recommend changing the name from vector to something else, so that you don't confuse the vector C++ class!

Fernando Masanori Ashikaga <fm...@te...> wrote:
I have a declaration:
 
int *vector;
 
In running time the space is allocated by malloc call.
 
How do I display de content of vector [ i ], for example,
in debug display? I know only display the value of
address of a pointer vector at this moment :-(




Alfred P. Reaud
 

Re: [Dev-C++] Cant debug with Bloodshed Dev.."Project not Compiled"...(arm-elf-gcc) (newbie)

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

You are using a arm toolchain when compiling.

Exactly how where you expecting a Windows machine using an x86 processor
to debug an arm application?

To debug the application, it must be run on a real arm processor - in some
situations, it is possible to run a remote gdb stub on the remote system
and using gdb on the PC to debug the code in the target system.

/PWM

On Wed, 2 Feb 2005, Mayank Kaushik wrote:

> Hi,
> I needed a (free) IDE to make life easier, im using Bloodshed Dev C++. I just set it up to use arm-elf-gcc.exe(Cygwin binary) ..Ive entered all options, paths, includes correctly (i think). When i click on "Rebuild All", my Makefile is triggered, and the project compiles succesfully. (ive set the linker up to produce a binary i can load into my microcontroller). (Im on WinXP)
> The compilation proceeds smoothly, and ends thus:
> ..
> ..
> ..
> arm-elf-gcc -nostdlib -Tld.script -N -o loader entry.o div0.o _udivsi3.o _umodsi3.o init.o crt0.o main.o asm_isr.o jump.o lib_AT91RM9200.o
> arm-elf-objcopy -O binary -j .text loader loader.text
> arm-elf-objcopy -O binary -j .data loader loader.data
> cat loader.text loader.data > loader.bin
> Execution terminated
> Compilation successful
> ==================================
> But Bloodshed Dev shows a "Warning: Project is not Compiled" at the end..then when i try to debug it, it says the above "Warning: Project is not Compiled" again, and doesnt proceed with the debug. If i click on Compile again, nothing happens obviously since nothing had changed..and the debug still doesnt happen.(Ive set it up with arm-elf-gdb)..
>
> Help :-(
> Regards
> Mayank

[Dev-C++] Cant debug with Bloodshed Dev.."Project not Compiled"...(arm-elf-gcc) (newbie)

[Mayank K. <may...@ya...>]

Hi,
I needed a (free) IDE to make life easier, im using Bloodshed Dev C++. I just set it up to use arm-elf-gcc.exe(Cygwin binary) ..Ive entered all options, paths, includes correctly (i think). When i click on "Rebuild All", my Makefile is triggered, and the project compiles succesfully. (ive set the linker up to produce a binary i can load into my microcontroller). (Im on WinXP)
The compilation proceeds smoothly, and ends thus:
..
..
..
arm-elf-gcc -nostdlib -Tld.script -N -o loader entry.o div0.o _udivsi3.o _umodsi3.o init.o crt0.o main.o asm_isr.o jump.o lib_AT91RM9200.o
arm-elf-objcopy -O binary -j .text loader loader.text
arm-elf-objcopy -O binary -j .data loader loader.data
cat loader.text loader.data > loader.bin
Execution terminated
Compilation successful
==================================
But Bloodshed Dev shows a "Warning: Project is not Compiled" at the end..then when i try to debug it, it says the above "Warning: Project is not Compiled" again, and doesnt proceed with the debug. If i click on Compile again, nothing happens obviously since nothing had changed..and the debug still doesnt happen.(Ive set it up with arm-elf-gdb)..
 
Help :-(
Regards
Mayank
 

		
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FW: [Dev-C++] nul.gcda warning

[Guillermo G. <ggu...@ma...>]

Amazingly enough, it turns out that it might be something similar.
This message was only appearing when I used the "Syntax Check" option of =
Dev-Cpp. The nul.gcda warning does not appear if I actually compile my =
code.

-----Original Message-----
From: Per Westermark [mailto:pw...@ia...]
Sent: Monday, January 31, 2005 11:47 AM
To: Guillermo Gutierrez
Cc: dev...@li...
Subject: Re: [Dev-C++] nul.gcda warning


For some reason it seems like you are trying to test code coverage in =
your
project.

When you run gcov, it will create a file 'sourcefile.gcov' containing =
the
coverage information for a source file.

Have you set the options -fprofile-arcs and/or -ftest-coverage in your
project?

/Per W

On Mon, 31 Jan 2005, Guillermo Gutierrez wrote:

> > Can anyone shed a little light on the following warning message that =
sometimes appears when compiling a program:
> > "`nul.gcda' is not a gcov data file"
> >
> > I am curious to know what this means as the compiler log only says =
that it is in reference to the first line in the source code.
> >
> > Guillermo Gutierrez
> > Market Scan Information Systems
> > Software Q.A. Supervisor
> > (818) 575-2000 x2427
> > ggu...@ma...
> >
>

[Dev-C++] Dynamic allocation vector debug display

[Fernando M. A. <fm...@te...>]

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Re: Fw: [Dev-C++] No Newline At End of File

[Gerson L. <ja...@ya...>]

Hello everybody!.
Iv'e seen the messages for this issue.
 
I think, that there is no problem at all with the code shown before, but, lokk at this:
 
"2 C:\Dev-Cpp\Templates\states.c:70 [Warning] no newline at end of file

How can a error that is supposed to occur at the end of the file occur in line 2 anyway? If anyone has any idea what is up here, please tell me."
 
there is an #include in the line 2, isn't it?
 
Remember what #include <filenme> does: it is like copy-pasting the contens of  "filename" as it is, into your code. I mean, the error may be in <stdlib.h> or the file that you're including.
Try to change the line in wich the include apears, move it to line 1, 3 ... etc.
 
If the warnig seems to be always in the same line of the include, then the problem is in the included file, so find the file, make a backup copy and put the new-line at the end of the original.(be careful of modifying only that!), save, and compile... 
 
I've had similar problems, an that has been a solution. But, I don't give any warranty. Please tell me( all of us, really), how do you finally resolve it...
 
Hoping to be helpful: Gerson.

		
---------------------------------

[Dev-C++] Problem with SDL Devpack ?

[Asmodehn S. <asm...@fr...>]

Hello,

I tried recently to build with the SDL devpack. Everything seems to work 
fine, except the SDL_GL_SetAttribute(....) calls. Each of them caused a 
segmentation fault...

Has someone spotted the same problem ?

Is it a problem with my code? a devpack problem ? a mingw problem? a SDL 
problem ?
For the moment I cannot try on other OS or builder, so please tell me 
what you think about it.

Thank you.

For those who are interested you can find the code on 
https://gna.org/projects/sge
Just use the sge-debug devcpp project.

Regards

--
Asmodehn


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Re: [Dev-C++] Strange Linker Error [signed]

[Vito T. [c] <vt...@ma...>]

Well,

I've three version of the DLL.
One is in C:\Windows\System32\ and is version 5.82.2900.2180

One is in 
C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.0.0_x-ww_1382d70a 
and is version 6.0.2600.0

The last is in 
C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9 
and is version 6.0.2900.2180

The strange thing is that i compiled the example with MS C++ Free 
compiler and there was no problem. With dev c++ I'm receiving this error.

How can I know what is the right library to link, and how do I tell this 
to dev c++?

Thank you very much

Vito



Derek Clarke ha scritto:
> This might be a DLL version problem.
> 
> Check that you haven't got another copy of the very common ComCtl32.dll in 
> the library path without those functions. 
> 
> In article <41F...@ma...>, vt...@ma... (Vito Tardia) 
> wrote:
> 
> 
>>*From:* Vito Tardia <vt...@ma...>
>>*To:* dev...@li...
>>*Date:* Mon, 24 Jan 2005 09:41:24 +0100
>>
>>Hi to all,
>>
>>I'm just starting programming with Dev C++ and Win API.
>>
>>I'm trying to compile an example of shell extension from MS Platform 
>>SDK. I adapted the makefile adding all required libraries, but at the 
>>and of the compilation process I receive this error(s):
>>
>>BEGIN:
>>
>>PropShet.o(.text+0x3df):PropShet.Cpp: undefined reference to 
>>`CreatePropertySheetPageA@4'
>>PropShet.o(.text+0x40f):PropShet.Cpp: undefined reference to 
>>`DestroyPropertySheetPage@4'
>>collect2: ld returned 1 exit status
>>
>>dllwrap.exe: no export definition file provided.
>>Creating one, but that may not be what you want
>>dllwrap.exe: c++ exited with status 1
>>
>>make.exe: *** [MSShellExt02.dll] Error 1
>>
>>END.
>>
>>The two functions are included in the ComCtl32.lib/dll package, which 
>>is included in the parameters o f DevC++.
>>
>>What can I do to fix it?
>>
>>Thankyou very much
>>
>>Vito Tardia
>>
>>
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-- 
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Date: on 01 February 2005 at 13:14:29 UTC
To:   de...@ci..., dev...@li...
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Re: [Dev-C++] MAgic Hexagon

[Ray K. <kul...@wr...>]

Perhaps you would learn more if you did your homework yourself?  If you  
have a specific question, perhaps some people here might be willing to  
help, but we aren't going to do the assignment for you.

On Mon, 31 Jan 2005 20:16:02 -0800, "Khaveta Singh"  
<kh...@ne...> wrote:
> Kindly send C++ source codes on the following:
> Design and develop storage for the hexagonal array of numbers depicted
> in Figure 1 below.   Write a program using the C programming language to
> implement this data structure and to test (show) that it can store the
> numbers 1 through 19 such that the sum of each column and each diagonal
> equals 38.  (It is not necessary for rows to sum to 38).
> Further, you are to invent a notation to describe any element of the
> hexagonal array and a direction along any diagonal or column.  The
> program must allow the user to use this notation to search for
> elements/members of the structure.

Re: [Dev-C++] MAgic Hexagon

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

Besides requesting answers to school assignments, it seems that you have
also missed to read the assignment. The request is for a C program, not a
C++ program.

/Per W

On Mon, 31 Jan 2005, Khaveta Singh wrote:

> Kindly send C++ source codes on the following:

Re: [Dev-C++] nul.gcda warning

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

For some reason it seems like you are trying to test code coverage in your
project.

When you run gcov, it will create a file 'sourcefile.gcov' containing the
coverage information for a source file.

Have you set the options -fprofile-arcs and/or -ftest-coverage in your
project?

/Per W

On Mon, 31 Jan 2005, Guillermo Gutierrez wrote:

> > Can anyone shed a little light on the following warning message that sometimes appears when compiling a program:
> > "`nul.gcda' is not a gcov data file"
> >
> > I am curious to know what this means as the compiler log only says that it is in reference to the first line in the source code.
> >
> > Guillermo Gutierrez
> > Market Scan Information Systems
> > Software Q.A. Supervisor
> > (818) 575-2000 x2427
> > ggu...@ma...
> >
>

RE: [Dev-C++] MAgic Hexagon

[Jay B. <jay...@ni...>]

[snip]
Kindly send C++ source codes on the following:
[/snip]

Is this your homework?=20