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

Hrm!!!

^ is the XOR bitwise operator in C and C++.

Do not even _think_ about using it as power operator. The code will
compile, but the result is _very_ wrong.

/Per W

On Mon, 31 Oct 2005, Jarren Long wrote:

>  Scott:
>  You could also just do this:
> hp =3D weight * ((speed / 234)^3)
> Using the ^ is the same as doing pow((speed/234),3);
>  Cheers,
> Jarren
>
> Okay another simple C question....
> >
> > I would like to make a quick HP calculator in C.
> > (just mucking around with DevC)
> > I would like to ask for user input, and then show the total...
> >
> > Something like:
> >
> > #include <stdio.h>
> > main()
> > {
> > float Weight, Speed, Time;
> > printf("Enter the weight : ");
> > scanf("%f",&Weight);
> > printf("Enter the Speed : ");
> > scanf("%f",&Speed);
> > Time =3D Weight*Speed;
> > printf("\n Time is =A3%5.2f",total);
> > }
> >
> > The formula is: hp =3D weight * (speed / 234)3
> >
> > How does one used cubed? is it something like 234*x*x ?
> > Anyone shed some simple light...
> >
> > The example above is just something i imagine it will look like...
> >
> > Cheers,
> > Scott.
> >
>

 Scott:
 You could also just do this:
hp =3D3D weight * ((speed / 234)^3)
Using the ^ is the same as doing pow((speed/234),3);
 Cheers,
Jarren

Okay another simple C question....
>
> I would like to make a quick HP calculator in C.
> (just mucking around with DevC)
> I would like to ask for user input, and then show the total...
>
> Something like:
>
> #include <stdio.h>
> main()
> {
> float Weight, Speed, Time;
> printf("Enter the weight : ");
> scanf("%f",&Weight);
> printf("Enter the Speed : ");
> scanf("%f",&Speed);
> Time =3D3D Weight*Speed;
> printf("\n Time is =3DA3%5.2f",total);
> }
>
> The formula is: hp =3D3D weight * (speed / 234)3
>
> How does one used cubed? is it something like 234*x*x ?
> Anyone shed some simple light...
>
> The example above is just something i imagine it will look like...
>
> Cheers,
> Scott.
>

pow( [base number], [exponent] )

pow( 2, 3 ) =3D=3D 8 =3D=3D 2^3 (where ^ represents exponent, not exclusive=
 or)
pow( 3, 2 ) =3D=3D 9 =3D=3D 3^2

Does that help?

On 10/30/05, Scott <fre...@ve...> wrote:
> >It looks to me like you want this:
>
> >Power =3D Weight / pow((ET / 5.825), 3);
>
> Yes, thanks to all of you that did the trick.....
> Now i'll just have to understand why that works...
>
> I'm glad i'm not sending people to the Moon..:)
>
> Thanks to everyone, for their prompt and helpful
> replies, it really makes trying to learn this crap,
> far more tolerable, with the excellent and quick help
> from you guys..... I do appreciate it..
>
> Thanks again....
>
> Cheers,
> Scott.
>
>
>
>
>
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--
Cheers,
Josh

>It looks to me like you want this:

>Power = Weight / pow((ET / 5.825), 3);

Yes, thanks to all of you that did the trick.....
Now i'll just have to understand why that works...

I'm glad i'm not sending people to the Moon..:)

Thanks to everyone, for their prompt and helpful
replies, it really makes trying to learn this crap,
far more tolerable, with the excellent and quick help
from you guys..... I do appreciate it..

Thanks again....

Cheers,
Scott.

It looks to me like you want this:

Power =3D Weight / pow((ET / 5.825), 3);

Remember, the first parameter of pow() is the number you want raised
to a certain exponent.

On 10/30/05, Scott <fre...@ve...> wrote:
>
> Should of mentioned
>
> I used 3500 pounds (weight)
> 12.8 seconds (ET)
>
> Should give me 330  (Power)
> However power is giving me 1.38
>
> Power =3D Weight/ET/pow(time,3);
> The formula is: hp =3D weight / (ET / 5.825)3*
>
> So what stupid thing am i doing wrong?
>
> Cheers
> Scott.
>
>
>
> #include <stdio.h>
> #include <math.h>
> #define time 5.825
> /*The formula is: hp =3D weight / (ET / 5.825)3*/
> main()
> {
> float Weight, ET, Power;
> printf("Enter the weight in pounds : ");
> scanf("%f",&Weight);
> printf("Enter the ET in Seconds : ");
> scanf("%f",&ET);
> Power =3D Weight/ET/pow(time,3);
> printf("Power EST is %3.2f",Power);
> }
>
>
>
>


--
Cheers,
Josh

Should of mentioned

I used 3500 pounds (weight)
12.8 seconds (ET)

Should give me 330  (Power)
However power is giving me 1.38

Power =3D Weight/ET/pow(time,3);
The formula is: hp =3D weight / (ET / 5.825)3*

So what stupid thing am i doing wrong?

Cheers
Scott.


#include <stdio.h>
#include <math.h>
#define time 5.825
/*The formula is: hp =3D weight / (ET / 5.825)3*/
main()
{
float Weight, ET, Power;
printf("Enter the weight in pounds : ");
scanf("%f",&Weight);
printf("Enter the ET in Seconds : ");
scanf("%f",&ET);
Power =3D Weight/ET/pow(time,3);
printf("Power EST is %3.2f",Power);
}

Okay thanks to everyone, i'm looking into POW
and the maths.h.

This code example gives me Power as 1.38
And i wanted it to equal 330 HP....
Iv'e tried a few variations, but still no luck!


#include <stdio.h>
#include <math.h>
#define time 5.825
/*The formula is: hp =3D weight / (ET / 5.825)3*/
main()
{
float Weight, ET, Power;
printf("Enter the weight in pounds : ");
scanf("%f",&Weight);
printf("Enter the ET in Seconds : ");
scanf("%f",&ET);
Power =3D Weight/ET/pow(time,3);
printf("Power EST is %3.2f",Power);
}

I'm sure it's just a matter of the POW being
in the wrong place...?

Cheers,
Scott.

You either just write x*x*x or you #include <math.h>
and then write pow(x,3).

/Per W

On Mon, 31 Oct 2005, Scott wrote:

> Okay another simple C question....
>
> I would like to make a quick HP calculator in C.
> (just mucking around with DevC)
> I would like to ask for user input, and then show the total...
>
> Something like:
>
> #include <stdio.h>
> main()
> {
> float Weight, Speed, Time;
> printf("Enter the weight : ");
> scanf("%f",&Weight);
> printf("Enter the Speed : ");
> scanf("%f",&Speed);
> Time =3D Weight*Speed;
> printf("\n Time is =A3%5.2f",total);
> }
>
> The formula is: hp =3D weight * (speed / 234)3
>
> How does one used cubed? is it something like 234*x*x ?
> Anyone shed some simple light...
>
> The example above is just something i imagine it will look like...
>
> Cheers,
> Scott.
>

Okay another simple C question....

I would like to make a quick HP calculator in C.
(just mucking around with DevC)
I would like to ask for user input, and then show the total...

Something like:

#include <stdio.h>
main()
{
float Weight, Speed, Time;
printf("Enter the weight : ");
scanf("%f",&Weight);
printf("Enter the Speed : ");
scanf("%f",&Speed);
Time =3D Weight*Speed;
printf("\n Time is =A3%5.2f",total);
}

The formula is: hp =3D weight * (speed / 234)3

How does one used cubed? is it something like 234*x*x ?
Anyone shed some simple light...

The example above is just something i imagine it will look like...

Cheers,
Scott.

When compilikng the default console project I get the following error
----
Compiler: Default compiler
Building Makefile: "C:\tmp\Makefile.win"
Executing  make clean
rm -f main.o  Project1.exe

g++.exe -c main.cpp -o main.o -I"C:/GnuWin32/INCLUDE"  -I"C:/GnuWin32/INCLUDE/GTK-2.0"  -I"C:/GnuWin32/INCLUDE/GLIB-2.0"  -I"C:/GnuWin32/INCLUDE/PANGO-1.0"  -I"C:/GnuWin32/INCLUDE/ATK-1.0"  -I"C:/GnuWin32/INCLUDE/GTKGLEXT-1.0"  -I"C:/GnuWin32/LIB/GTK-2.0/INCLUDE"  -I"C:/GnuWin32/LIB/GLIB-2.0/INCLUDE"  -I"C:/GnuWin32/LIB/GTKGLEXT-1.0/INCLUDE"  -I"C:/GnuWin32/INCLUDE/LIBGLADE-2.0"  -I"C:/GnuWin32/INCLUDE/LIBXML2"   

g++.exe: no input files

make: *** [main.o] Error 1

Execution terminated
-------------------------------------------------

Can anyone help?


-- 
* You cannot exercise your power to a point of humiliation.
                       - Jean Chretien

* It's amazing how the small seeds of distrust and misunderstanding
can yield a crop of hate and death...

* If that document has fine printing anywhere, just chuck it in the garbage
                      - Jorge Escalante
Ma'assalama! Adiós! bye!


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Hi guys,

Dev-C++ 4.9.9.2

I'm trying to add a compiler set but after I configure it through the
various tabs (adding paths, etc) it starts doing a MAKE (first from DMC
and then from MINGW).  I can tell it's trying to run MAKE repeatedly
because my firewall gives me 4 popups (two sets of once for Digital Mars
MAKE, then MINGW make).  I don't know why this is happening, I don't
have a project or source file open.

And it refuses to let me override programs for G++, GDB, etc., always
restoring directory pointers to MINGW components.  (I'm trying to clear
these because DMC doesn't have any equivalents, I think).

Has anyone added a compiler set?

Thanks,

Israel

--=20
http://www.fastmail.fm - Same, same, but different=85

gcc/MinGW does not have a built-in garbage collector.  Execute->Clean
simple runs `make clean`, which deletes any temporary/object files
from your project that are sitting around.

On 10/29/05, Safak =D6kmen <saf...@gm...> wrote:
> What does "clean" make? Is this the garbage collection perhaps? If not,
> where is the gargabe collection?
>
>  Thx!
>  Safak
>


--
Cheers,
Josh

What does "clean" make? Is this the garbage collection perhaps? If not,
where is the gargabe collection?

Thx!
Safak

To emit your color numbers as integers you have to multiply them with a
constant to increase them from the 0..1 range to span 0.255. Then you
typecast this value to an integer and use %u instead of %f to print them.

When it comes to colors, it all depends on which environment you are in.
If you print to a console supporting ANSI ESC sequences, you can use these
sequences to control the emitted color.

An example is:
printf("\x1b[1m\x1b[32mhello ");
printf("\x1b[32mthere ");
printf("\x1b[35mcolorful ");
printf("\x1b[0mworld\n");

However, the text console in Windows normally don't support the ESC
sequences, resulting in a very ugly printout.

More info about use of ANSI ESC sequences can be found at:
http://www.evergreen.edu/biophysics/technotes/program/ansi_esc.htm

If you are in a graphical environment, then there are normally better
output methods than printf, allowing control not just over color but over
font, printding direction, slanting, ...

Windows have a lot of attribute functions to control the output to the
currently selected DC (Device Context). SetTextColor() and SetBkColor()
are good functions too look a bit closer at :)

Remember that most Windows API have online-browseable documentation
available directly on the Microsoft web site.

/Per W

On Sat, 29 Oct 2005, Scott wrote:

> Newbie C, help...
>
> Is there a way to write the number as 255
> instead of 0.1 or 0.13434 etc.....
>
> sprintf(str, "R:%1.2f G:%1.2f B:%1.2f", color[0], color[1], color[2]);
>
> And also is it possible to change the text color?
>
> sprintf(str, "Red:%1.2f Green:%1.2f Blue:%1.2f", color[0], color[1], color[2]);
>
> I would like have Red (in red), Green in Green, and Blue text....
> Is this easy or possible to do in C?
>
> This function is obviosuly part of a 3D plugin, but it uses C commands,
> like sprintf....
>
> Cheers,
> Scott.
>
>
>
>
>
>

When I try to compile my program I get this error, which I don't understa=
nd.

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Compiler: Default compiler
Building Makefile: "C:\...\dev\c++\jme\exception\Makefile.win"
Executing  make clean
rm -f main.o exception.o  Exception.exe

g++.exe -c main.C -o main.o -I"C:/GnuWin32/INCLUDE"=20
-I"C:/GnuWin32/INCLUDE/GTK-2.0"  -I"C:/GnuWin32/INCLUDE/GLIB-2.0"=20
-I"C:/GnuWin32/INCLUDE/PANGO-1.0"  -I"C:/GnuWin32/INCLUDE/ATK-1.0"=20
-I"C:/GnuWin32/INCLUDE/GTKGLEXT-1.0"  -I"C:/GnuWin32/LIB/GTK-2.0/INCLUDE"=
=20
-I"C:/GnuWin32/LIB/GLIB-2.0/INCLUDE"=20
-I"C:/GnuWin32/LIB/GTKGLEXT-1.0/INCLUDE"=20
-I"C:/GnuWin32/INCLUDE/LIBGLADE-2.0"  -I"C:/GnuWin32/INCLUDE/LIBXML2"

g++.exe: no input files

make: *** [main.o] Error 1

Execution terminated
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Also, why are the GTK(mm) added to my compilation if this is a console
program?

What do I need to change here?

TIA


--=20
* You cannot exercise your power to a point of humiliation.
                               - Jean Chretien

* It's amazing how the small seeds of distrust and misunderstanding  can
yield a crop of hate and death...

* If that document has fine printing anywhere, just chuck it in the garba=
ge
                              - Jorge Escalante

Ma'assalama! Adi=F3s!  bye!

Newbie C, help...

Is there a way to write the number as 255=20
instead of 0.1 or 0.13434 etc.....

sprintf(str, "R:%1.2f G:%1.2f B:%1.2f", color[0], color[1], color[2]);

And also is it possible to change the text color?

sprintf(str, "Red:%1.2f Green:%1.2f Blue:%1.2f", color[0], color[1], =
color[2]);

I would like have Red (in red), Green in Green, and Blue text....
Is this easy or possible to do in C?

This function is obviosuly part of a 3D plugin, but it uses C commands,
like sprintf....

Cheers,
Scott.

> If you stiil have problems I will send an example.

I'm still having problems. A simple example will help for
sure. :-D
Also, if only two files are needed, what am I supposed to do
with the rest of the unzipped/installed stuff? I wonder if 
you could walk me quickly through a Dislin install.
I've installed dislin in E:\dislin and my Dev-C++ is in
E:\devcpp.
-- 
Rohit V. Bhute
http://rvbhute.blogspot.com/

All errors are generated by the g++ compiler. However, that is not the
complete message - just part of the information where the error was found,
and how the compiler managed to navigate to the specific file.

There is also the actuall error message, i.e. what was wrong at line 2 of
bank.h.

/Per W

On Fri, 28 Oct 2005, Safak =D6kmen wrote:

> Can you tell me where to look for a list with explanations to compiler
> errors like:
>
> 2 D:\c++lernen\bank.h:2, from kunde.cpp In file included from bank.h:2, f=
rom
> kunde.cpp
>
> ?
>
> Are they g++ compiler errors or generated by Dev-C++ ?
>
> Thank you,
> Safak
>

Can you tell me where to look for a list with explanations to compiler
errors like:

2 D:\c++lernen\bank.h:2, from kunde.cpp In file included from bank.h:2, fro=
m
kunde.cpp

?

Are they g++ compiler errors or generated by Dev-C++ ?

Thank you,
Safak

Is there somebody out who can compile the real mysql++ library from 
tangensoft.
I know the devpack from libmysql works. But this is C and de mysql++ 
library is really good.
Does or Could someone make a devpack from it. I'm always stuck with 
compiling it at ResUse and ResNSel classes.
I can't figure out why. I always get the warning message that attribute 
is ignored with actually isn't.
Anybody ?

Kind regards

Wim

Hi Doctors,
 
I got some link errors when I compiled and linked for use MySQL C API.
 
Parts of error list:
  .drectve /DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"LIBCMT" /DEFAULTLIB:"OLDNAMES" ' unrecognized 
(...)

  .drectve `/DEFAULTLIB:"LIBCMT" /DEFAULTLIB:"OLDNAMES" ' unrecognized 
(...)

  [Linker error] undefined reference to `connect@12' 
  [Linker error] undefined reference to `socket@12' 
(...)
  [Linker error] undefined reference to `_ftol2' 
(...)
  [Linker error] undefined reference to `libmsvcrt_a_iname' 
(...)
  resolving Gtk::Stock::NEW     by linking to __imp___ZN3Gtk5Stock3NEWE (auto-import) 
(...)
  [Linker error] undefined reference to `_nm___iob' 
 
 
I'm using Dev-C++ 4.9.9.2, Gtk+ 2.6.10, Gtkmm 2.6.2 and MySQL 5.0 (all for Windows).
 
For Compiling and Linking Parameters I'm using:
 
-IC:\Dev-Cpp\include\gtkmm-2.4 -IC:\Dev-Cpp\lib\gtkmm-2.4\include -IC:\Dev-Cpp\include\glibmm-2.4 -IC:\Dev-Cpp\lib\glibmm-2.4\include -IC:\Dev-Cpp\include\gdkmm-2.4 -IC:\Dev-Cpp\lib\gdkmm-2.4\include -IC:\Dev-Cpp\include\pangomm-1.4 -IC:\Dev-Cpp\include\atkmm-1.6 -IC:\Dev-Cpp\include\gtk-2.0 -IC:\Dev-Cpp\include\sigc++-2.0 -IC:\Dev-Cpp\lib\sigc++-2.0\include -IC:\Dev-Cpp\include\glib-2.0 -IC:\Dev-Cpp\lib\glib-2.0\include -IC:\Dev-Cpp\lib\gtk-2.0\include -IC:\Dev-Cpp\include\pango-1.0 -IC:\Dev-Cpp\include\atk-1.0  -IC:\Dev-Cpp\include   -IC:\Dev-Cpp\include\mysql 
 
and
 
-LC:\Dev-Cpp\lib -LC:\mysql\lib\opt -lgtkmm-2.4 -lgdkmm-2.4 -latkmm-1.6 -lgtk-win32-2.0 -lpangomm-1.4 -lglibmm-2.4 -lsigc-2.0 -lgdk-win32-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangowin32-1.0 -lgdi32 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -liconv -Wl,--enable-runtime-pseudo-reloc -lmysqlclient -lz

 
 
Thanks.
 
(o_o) - mds
GATBRASIL
 
 

 

Thanks.

 

(o_o) - mds

GATBRASIL



		
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Does anybody know how to use dislin (www.dislin.de) with 
Dev-C++ ? I tried putting the entire package in a folder 
with the C file, but am getting a linker error.

-- 
Rohit V. Bhute
http://rvbhute.blogspot.com/

Hello

Pr oazac
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http://Cornishokx.caganel.info

_________________________________________________________________
color arose from his washing in the water in which he swam, the The Bear and 
the Two Travelers And how much more beautiful than you am I, who am decorated, 
not to their high place in the general literature of Christendom, is The Hawk 
and the Nightingale 

Hi,

I'm using wxDev-C++ to make my wxWidgets application,=20

when I make a new application, it compiles ok, but if I open an =
wxWidgets example, an try to compile I get and compiler erro 255,

does any one knows what this is?