dev-cpp-users Mailing List for Dev-C++

In MINGW the long double is broken. Also in MINGW (and GCC in general) us=
e
-ffloat-store.=0D
=0D
 =0D
Ioannis Vranos=0D
=0D
* Programming pages: http://www.noicys.freeurl.com=0D
* Alternative URL: http://run.to/noicys =0D
-------Original Message-------=0D
 =0D
From: Lu=EDs" "Br=E1s=0D
Date: =D0=DD=EC=F0=F4=E7, 9 =C9=E1=ED=EF=F5=DC=F1=E9=EF=F2 2003 4:57:41 =F0=
=EC=0D
To: dev...@li...=0D
Subject: [Dev-C++] Numerical Difference betewen Dev-Cpp and Microsoft C++
NET=0D
 =0D
Hi there?=0D
=0D
I?ve just finished developing an mathematical=0D
optimization program =0D
in C++ for my Thesis. My base compiler that was=0D
installed in my university was Microsoft Visual =0D
C++.Net. Now I?m trying to compile with Dev-Cpp in my =0D
computer at home . The results were the same, until=0D
my example 23, failed to converge in Dev-Cpp. When =0D
dealing with math every decimal counts. And this is=0D
the problem. The results are the following:=0D
=0D
----------------------------------=0D
Iteration function=0D
error=0D
next step=0D
=0D
--------NET-----------------------------DEV----------=0D
=0D
0 6.08269457903887380000 6.08269457903887380000 =0D
14.38658488183035000000 14.38658488183034500000=0D
1.00000000000000000000 1.00000000000000000000=0D
=0D
1 6.08269457903887380000 6.08269457903887380000=0D
14.38658488183035000000 14.38658488183034500000=0D
0.15334071686133940000 0.15334071686133718000=0D
=0D
2 5.64283384487765800000 5.64283384487766430000=0D
11.71651970320963600000 11.71651970320965800000=0D
0.23998975404550715000 0.23998975404523476000=0D
=0D
3 5.29623368056405490000 5.29623368056461440000=0D
9.25439173550483750000 9.25439173550664760000=0D
0.13589203600495686000 Error.=0D
=0D
As you can in iteration 3 the program fails. I know =0D
that is difficult to find the problem just by looking =0D
at numbers!! The difference is always in the last =0D
decimal places (>12). =0D
=0D
I use templates in all class?s and it?s being =0D
initialize with double. My compilation options are =0D
default. My computer is a Pentium 3. I think its =0D
probably the double that has different =0D
decimal places? I?ve changed to (long double) but the =0D
function pow in math doesn?t accept anything =0D
different from double. Even converting to double =0D
the results are the same.=0D
=0D
Thanks in advance for any help.=0D
=0D
P.S. Sorry for my bad English=0D
=0D
=0D
=3D=3D=3D=3D=3D=0D
+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=
=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D=0D
Lu=EDs Filipe Delgado Br=E1s=0D
lf...@ya...=0D
http://www.fotopt.net/autor.asp?autor=3D2637=0D
+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=
=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D+=3D=0D
=0D
__________________________________________________=0D
Do you Yahoo!?=0D
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.=0D
http://mailplus.yahoo.com=0D
=0D
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This SF.NET email is sponsored by:=0D
SourceForge Enterprise Edition + IBM + LinuxWorld =3D Something 2 See!=0D
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_______________________________________________=0D
Dev-cpp-users mailing list=0D
Dev...@li...=0D
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Ok, I'll post the files on my webspace, probably after the weekend.
Sometime on monday point your browser to
http://uk.geocities.com/revthepirate/ and download the only .cpp and .h
files there.  Keep in mind:
1) It's not finished yet
2) I was doing it for practice, so it's not the best library out there

Since it was a work in progress, it's not in a static library yet, so you
can fix it up however you want.  Please tell me if you can get the int
writing to work.  I'll let you build the library yourself.

At 08:54 PM 10/01/2003 +0100, OROSZI Bal=E1zs wrote:
>Hello Matthews!
>
>> Actually, I've been working on one for the past few weeks.  Want me to=
 send
>> it over to you?
>I would be very grateful. Thank you.
>
>--
>Greetings,
>   Bal=E1zs
>
>
>
>-------------------------------------------------------
>This SF.NET email is sponsored by:
>SourceForge Enterprise Edition + IBM + LinuxWorld =3D Something 2 See!
>http://www.vasoftware.com
>_______________________________________________
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>Dev...@li...
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>

-------Original Message-------=0D
 =0D
From: MaXxX=0D
Date: =D3=DC=E2=E2=E1=F4=EF, 11 =C9=E1=ED=EF=F5=DC=F1=E9=EF=F2 2003 8:09:=
08 =EC=EC=0D
To: dev...@li...=0D
Subject: [Dev-C++] Freshly installed Dev-C++, newbie problems...=0D
 =0D
Hello.=0D
=0D
I've just installed Dev-C++, and have encountered several problems:=0D
=0D
1. I launched the default "hello world" example - it failed to find=0D
iostream.h. No wonder: iostream.h is not in dev-cpp/include... I'm=0D
not a C pro, so I have no idea what to copy and where, to correct=0D
this error... Or should I never use iostream.h..?=0D
=0D
=0D
=3D> In the final C++ standard it has become <iostream> and everything in=
 it
is defined in the namespace std;=0D
=0D
Example:=0D
=0D
#include <iostream>=0D
=0D
int main()=0D
{=0D
 std::cout<<"Hello new world!\n";=0D
}=0D
=0D
=0D
In main() return 0; is optional.=0D
=0D
=0D
=0D
2. Another example, the windowed one, compiled and executed correctly -=0D
but refuses to debug: it complains that my project has no debug=0D
information included, and attempts to turn it on, but to no avail.=0D
=0D
3. More of a general question, which I have not found an answer in the=0D
FAQ for. How _exactly_ does Dev-C++ compare to MS Visual C++ in all=0D
possible terms? I hardly have time to try each of them out=0D
extensively enough to compare them myself...=0D
=0D
=0D
=3D> Dev-C++ compiler, the MINGW32 supports only Win32 API.=0D
=0D
=0D
Ioannis Vranos=0D
=0D
* Programming pages: http://www.noicys.freeurl.com=0D
* Alternative URL: http://run.to/noicys=20

Hello.

I've just installed Dev-C++, and have encountered several problems:

1. I launched the default "hello world" example - it failed to find
   iostream.h. No wonder: iostream.h is not in dev-cpp/include... I'm
   not a C pro, so I have no idea what to copy and where, to correct
   this error... Or should I never use iostream.h..?

2. Another example, the windowed one, compiled and executed correctly -
   but refuses to debug: it complains that my project has no debug
   information included, and attempts to turn it on, but to no avail.

3. More of a general question, which I have not found an answer in the
   FAQ for. How _exactly_ does Dev-C++ compare to MS Visual C++ in all
   possible terms? I hardly have time to try each of them out
   extensively enough to compare them myself...

Thanks in advance for your time,

-- 
 |\  /|      \~~~/     \~~~/   WWW: http://none :(
 | \/ |  /\   > <  \~/  > <    E-M: maxxx[at]rpg.pl
 |____| /__\ /___\ /_\ /___\   ICQ: 3146019

"Accelerated C++" by Andrew Koenig, Barbara Moo.=0D
 =0D
 =0D
=0D
Ioannis Vranos=0D
 =0D
* Programming pages: http://www.noicys.freeurl.com=0D
* Alternative URL: http://run.to/noicys  =0D
 =0D
=0D
-------Original Message-------=0D
 =0D
From: tcq...@so...=0D
Date: =D3=DC=E2=E2=E1=F4=EF, 11 =C9=E1=ED=EF=F5=DC=F1=E9=EF=F2 2003 4:04:=
52 =EC=EC=0D
To: dev...@li...=0D
Subject: [Dev-C++] (no subject)=0D
 =0D
Hi=0D
I am a Chinese.I have learn c++ a short time.=0D
Can you tell me what book can I read?=0D
Oh ,I have a problem how can I use the "time" class?=0D
Thank you ! Yours' li

Hi
I am a Chinese.I have learn c++ a short time.
Can you tell me what book can I read?
Oh ,I have a problem how can I use the "time" class?
Thank you !                           Yours' li
                                       

I'm a complete newbie to devcpp, though not to c/c++. I've downloaded =
and installed the windows distro from mysql. When I compile the the =
test.c program from the mysql distro the gnu compiler doesn't generate =
underscores on function names. OK, so I've found a switch in the =
documentation that's supposed to turn on leading underscores (-f =
leading-underscored, funnily enough). However the 3.2.x gnu I have =
doesn't seem to want to do this...what am I missing here...

TIA
Michael

Jordi,

Did you link the library in correctly? To link in library libmath3d.a
you should use the option -lmath3d

BlakJak :]

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...]On Behalf Of Jordi
Rovira i Bonet
Sent: 11 January 2003 16:54
To: dev...@li...
Subject: [Dev-C++] Linking with a static library produced in dev-c++


Hello,

	I've build the library math3d (math3d.sf.net) succesfully in Dev-C++ 
producing a nice libmath3d.a. Now whenever i try to link a simple 
program that uses any class in this library i get an error like the one 
below. I'm using the latest beta version of DevC++ i think. The problem 
is so simple that i don't know how to approach it, and as i think it 
might be a common problem i'm posting.

g++.exe -c test/main.cpp -o test/main.o -I"D:/Programes/Dev-Cpp/include" 
  -I"D:/jordi/math3d-0.3.0"  -I"D:/Programes/Dev-Cpp/include/c++" 
-I"D:/Programes/Dev-Cpp/include/c++"
g++.exe test/main.o  -o "Test.exe" -L"D:/Programes/Dev-Cpp/lib" math3d.a 
-I"D:/Programes/Dev-Cpp/include"  -I"D:/jordi/math3d-0.3.0" 
-I"D:/Programes/Dev-Cpp/include/c++" 
-I"D:/Programes/Dev-Cpp/include/c++"
test/main.o(.text+0xa2):main.cpp: undefined reference to 
`_imp___ZN6Math3dlsERSoRKNS_3M3dE'
make.exe: *** [Test.exe] Error 1
Execution terminated


I would appreciate any hints.

(jordi)



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  The resource editor in version 4.0 was not complete and you couldn't=20
do many things, in the beta 5 versions it has dissapeared. I don't=20
remember it (I only tried to use it twice when the very first days of my=20
efforts to learn win programming), so wait to another answer if you want=20
use it. What I use now, and some others use too is the resource editor=20
=66rom lcc-win32 compiler, you can download the resource editor alone fro=
m=20
www.objectcentral.org.

FABIAN HUENUMAN wrote:

> Hi! I was try to create an input dialog box with the resource editor of
> dev-c++ 4.0. Then editor show a dialog box where I put the title of=20
> my  dialog box,
> the font, the style font, and others, but nothing like textedit or=20
> something
> than let me perform some input. The quetion is, some bady knows how=20
> can i do this?
>
> When i look the resource file there is an empty BEGIN-END in
> the declaration of my dialog. The other question is, what commands can =
I
> put there (betwen BEGiN END)?
>
>
>
> _________________________________________________________________
> MSN Fotos: la forma m=E1s f=E1cil de compartir e imprimir fotos.=20
> http://photos.msn.es/support/worldwide.aspx
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
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>

You use mingw 2.0.0, isn't it? Now -fnative-struct is an obsolete 
option. You shall use -mms-bitfields.

Daniel Nicault wrote:

>Hi and many good things for this new ear,
>
>I creta a simple window with winglade and genereate c code.
>Then, i create a new project with dev c++ and devhex for wingtk.
>
>when I compile, I take an error for non reconised option
>-fnative-code,and if I hide this option, the program is generated but i
>take an error at run time that say it's possible I ommit the
>-fnatice-code option....
>
>Can you help me?
>
>Regards,
>  
>  
>

Hello,

	I've build the library math3d (math3d.sf.net) succesfully in Dev-C++ 
producing a nice libmath3d.a. Now whenever i try to link a simple 
program that uses any class in this library i get an error like the one 
below. I'm using the latest beta version of DevC++ i think. The problem 
is so simple that i don't know how to approach it, and as i think it 
might be a common problem i'm posting.

g++.exe -c test/main.cpp -o test/main.o -I"D:/Programes/Dev-Cpp/include" 
  -I"D:/jordi/math3d-0.3.0"  -I"D:/Programes/Dev-Cpp/include/c++" 
-I"D:/Programes/Dev-Cpp/include/c++"
g++.exe test/main.o  -o "Test.exe" -L"D:/Programes/Dev-Cpp/lib" math3d.a 
-I"D:/Programes/Dev-Cpp/include"  -I"D:/jordi/math3d-0.3.0" 
-I"D:/Programes/Dev-Cpp/include/c++" 
-I"D:/Programes/Dev-Cpp/include/c++"
test/main.o(.text+0xa2):main.cpp: undefined reference to 
`_imp___ZN6Math3dlsERSoRKNS_3M3dE'
make.exe: *** [Test.exe] Error 1
Execution terminated


I would appreciate any hints.

(jordi)

You might try these flags.  gcc 3.x, instead of -fnative-struct use -mms-
bitfields.  I'm not sure which version you have installed, but it might help.

-Steven

Quoting Daniel Nicault <dan...@fr...>:

> Hi and many good things for this new ear,
> 
> I creta a simple window with winglade and genereate c code.
> Then, i create a new project with dev c++ and devhex for wingtk.
> 
> when I compile, I take an error for non reconised option
> -fnative-code,and if I hide this option, the program is generated but i
> take an error at run time that say it's possible I ommit the
> -fnatice-code option....
> 
> Can you help me?
> 
> Regards,
>   
> -- 
> Daniel Nicault
> 
> 
> 
> 
> -------------------------------------------------------
> This SF.NET email is sponsored by:
> SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
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> Dev...@li...
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> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 

Hi and many good things for this new ear,

I creta a simple window with winglade and genereate c code.
Then, i create a new project with dev c++ and devhex for wingtk.

when I compile, I take an error for non reconised option
-fnative-code,and if I hide this option, the program is generated but i
take an error at run time that say it's possible I ommit the
-fnatice-code option....

Can you help me?

Regards,
  
-- 
Daniel Nicault