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

I want to create two classes that contain pointers to each other, but I
keep getting "Syntax error before *"  I know a class can contain a
pointer to itself, but why not to others before it is fully defined?
  
The classes are declared in their own header files, which are
reciprocally included in the other... The function coding were in
separate .cpp files.. What am I forgetting?

-----author.h----  The stripped down versions..
#ifndef AUTHOR_H
#define AUTHOR_H
#include "book.h"
using namespace std;

class Author
{
public:
 Book* works[20];
};
#endif

---book.h----
#ifndef BOOK_H
#define BOOK_H
#include "author.h"
using namespace std;
class Book
{
public:
  Author* authorP;
};
#endif


-- 
Fy...@qw...

Hint: You will use strstr() and strcpy()...


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
* Alternative URL: http://run.to/noicys


-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Jeethu
Rao
Sent: Friday, June 29, 2001 7:01 AM
To: Dev CPP Mailing List
Subject: [Dev-C++] Seperating the Filename and folder path from a string


Hi,

I'm writing a small command line encryption utility. For this, I need to
seperate the Folder path and filename from a single string. I vaguely
remember that there was a function to do this in the standard C library.

Can someone please tell me the name and the header file for that
function. Or else i'll have to manually code a function which does this.

Thnx,

Jeethu Rao

_______________________________________________
Dev-cpp-users mailing list
Dev...@li...
http://lists.sourceforge.net/lists/listinfo/dev-cpp-users

In C++ as a language you can write assembly directly in style

inline void test()
{
 asm(...);
}

I do not know anything about assembly but it has an example at
http://www.research.att.com/~bs/esc99.html


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
* Alternative URL: http://run.to/noicys


-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Jeethu
Rao
Sent: Friday, June 29, 2001 7:01 AM
To: Dev CPP Mailing List
Subject: [Dev-C++] [Dev-C++]: Inline Assembly Code


Hi,

I was wondering how to include assembly level code in C++ files. Can I
do it inline (like in the good old Turbo C) or do I have to create a Lib
in MASM32 or NASM and then Link ?

Thnx in advance,

Jeethu Rao

_______________________________________________
Dev-cpp-users mailing list
Dev...@li...
http://lists.sourceforge.net/lists/listinfo/dev-cpp-users

Lo there
------------
I have had the same problem writing plugins for Sonique and I think it is a 
Micro$oft thing
for I have also tried to compile the DLL with Borland Compilers Like 
borland C++ 5 (not the Builder)

and it still does not work if a Micro$oft product pick the DLL up and opens 
it..

OK lets be honest if you look at the DLL the function names does look 
different than what you made it But that realy does not
effect the way it is read (considering it is static or not)

I have noticed that the Borland Compilers add Debug info entry points to 
the DLL even if you say exclude that  :(

Anyways coming back to the Bloodshed DLL. If you compile the DLL the linker 
will say the following

Warning: no export definition file provided
dllwrap will create one, but may not be what you want

No that says that ya must write a def file for this dll to say where the 
entry points are If I amm correct..

But hey that is geussing..
Anyways when creating a DLL project the example given there is kinda good 
and okay..

Well that is enough blabing.. I hope some of this may help in a way to 
solve the problem for I dont know a
answer for this yet.. have tried a lot of stuff but no answer yet..

Good Luck
Johannes

PS : Sorry I am sending to your private but the list does not accept all my 
mail meaning you will never see this..



At 00:07 29/06/2001 -0700, you wrote:
>I tried Bloodshed Dev-C++ v4 and v4.01, neither was able to compile a DLL
>that works. I am using Visual Basic to test my DLLs, so all I have to do is
>be able to export functions for it to see. It always gives me the error that
>it does not know the entry point to my DLL. I do have an entry point, and
>the same code compiles and makes a working dll with Visual C++. Please tell
>me what I might be doing wrong. (Or if anyone can, please include sample
>code of a working DLL that does anything simple even. A function that
>returns a number is simple enough.) Thank You.
>
>-James Alton
>
>
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>http://lists.sourceforge.net/lists/listinfo/dev-cpp-users

I tried Bloodshed Dev-C++ v4 and v4.01, neither was able to compile a DLL
that works. I am using Visual Basic to test my DLLs, so all I have to do is
be able to export functions for it to see. It always gives me the error that
it does not know the entry point to my DLL. I do have an entry point, and
the same code compiles and makes a working dll with Visual C++. Please tell
me what I might be doing wrong. (Or if anyone can, please include sample
code of a working DLL that does anything simple even. A function that
returns a number is simple enough.) Thank You.

-James Alton

hi,

i have two qestions:

1) Support Devc++ function strftime()?

2) How i make Submenu in this form:

File      Show     Tools    etc...
Open
Save
Send to > Notepad
Exit      Mail client
          ...

Sorry, my english is not perfect. If this letter contains errors, debug=
. ;)

Thanks

Ian (Redge is not my real name)
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
Take se nezeptali na Vas nazor? Stante se clenem OnlinePanelu
a Vase nazory budou slyset. http://www.onlinepanel.cz

Hi,
  try the OpenGL tutorial at http://www.gamecoding.co.uk/. They've got a
very good OpenGL tutorial, specifically
  targeting Dev C++. They also have a small zip file in their Download
section with the GL and GLUT headers and
  libs for Dev C++. Hope this helps you.

Regards,

Jeethu Rao
www.jeethurao.com



-----Original Message-----
From: dev...@li...
[mailto:dev...@li...]On Behalf Of Brasier
Sent: Wednesday, June 27, 2001 8:51 AM
To: dev...@li...
Subject: [Dev-C++] DEVC++'s OPENGL....


Hi,

 I wonder if you can tell me if DEVC++'s OpenGL has glaux libraries??

 I am learning from nehe.gamedev.net now and in tutorial 7 they say i need a
glaux library so i am going to get devC++ as my compiler but i need to know
if it has that...

Thanks

Steve.B

Oh and thanks to johanne and everyone else who helped me with my earlier
problems!!!




_______________________________________________
Dev-cpp-users mailing list
Dev...@li...
http://lists.sourceforge.net/lists/listinfo/dev-cpp-users

Hi,

I was wondering how to include assembly level code in C++ files.
Can I do it inline (like in the good old Turbo C) or do I have
to create a Lib in MASM32 or NASM and then Link ?

Thnx in advance,

Jeethu Rao

Hi,

I'm writing a small command line encryption utility. For this, I need to
seperate the Folder path and filename from a single string. I vaguely
remember that there was a function to do this in the standard C library.

Can someone please tell me the name and the header file for that function.
Or else i'll have to manually code a function which does this.

Thnx,

Jeethu Rao

>Date: Wed, 27 Jun 2001 10:06:33 +0200
>To: 
>dev...@li...,dev...@li...,dev...@li...,dev...@li...
>From: Johannes Pretorius <joh...@pr...>
>Subject: Fwd: Re: [Dev-C++] Error problems
>
>
>>Date: Wed, 27 Jun 2001 10:01:55 +0200
>>To: dev...@li...
>>From: Johannes Pretorius <joh...@pr...>
>>Subject: Re: [Dev-C++] Error problems
>>
>>WHAAAAAAAAAAAA..
>>
>>I want my mail also to appear on this LIST.,.. GRRR..
>>
>>Anyways HERE is the Answer
>>
>>Make sure that the project options is set to compile for C++
>>After that it will work..
>>
>>if not mail me. I had this prob also before
>>
>>good Luck
>>
>>Johannes
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>At 14:37 27/06/2001 +0700, you wrote:
>>>I try to correct them. ..
>>>
>>>1. I think the correct code is
>>>#include <iostream.h> not  #include <iostream>
>>>
>>>2. The prototype of: void getInput(string, float&);
>>>is not match to function declaration:
>>>void getInput(string name, float salary)
>>>Second parameter must be fixed to: float& salary
>>>
>>>3. The same problem also causes of different prototypes to declarations.
>>>The other prototypes of:
>>>float calcFwt(float, float);
>>>float calcFica(float, float);
>>>float calcNetPay(float, float, float);
>>>void displayInfo(string, float, float, float, float);
>>>
>>>respectively are not match (type or number of parameters) to function
>>>declarations:
>>>float calcFwt(float salary, const float FWT_RATE, float fwtTax)
>>>float calcFica(float &salary, const float FICA_RATE, float ficaTax)
>>>float calcNetPay(float salary, float fwtTax, float ficaTax, float netPay)
>>>void displayInfo(string &name, float salary, float fwtTax, float ficaTax,
>>>float netPay)
>>>
>>>If it's hard to make them consistent, dont make prototypes. Just put your
>>>functions before main().
>>>
>>>
>>>___Nurhidayat___
>>>
>>>
>>>
>>>_______________________________________________
>>>Dev-cpp-users mailing list
>>>Dev...@li...
>>>http://lists.sourceforge.net/lists/listinfo/dev-cpp-users

I inserted the #define PVOID void * statement into the top of my main.cpp 
file and the PVOID problems disappear (i think) but new ones replace it. 
Most problems seem to concern special windows types (like PVOID). They are 
mostly syntax errors and are found in files that contain typedefs for 
windows types to other types (eg. typedef UINT_PTR  WPARAM;)

Do I need a special include file which i don't have that has the definitions 
of all these types? What is a syntax error? Why would this cause a syntax 
error?

thanks all
Ramana
(ra...@my...)
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

>did any one have an idea to convert a double to a string pointer ?
>(not like _fcvt)

like this?

#include <stdio.h>
main()
{
char str[20];
double num;
num = 1234.567890;
sprintf( str, "%lf", num);

printf( "Now str's content is %s", s);
}

___Nurhidayat___

At 23:20 27/06/2001 +0100, you wrote:
>   Do I need Glut to write OpenGL programs in DEV C++  ? If so how do I go
>about setting up DEV C++ to use Glut.   Thnx Napoleon. 

No you dont. But GLUT make easy and simple to write OpenGL programs.
Put -lopengl32 -lglu32 -lglut32 to linker options at menu Project | Project
Options.

___Nurhidayat___

Do I need Glut to write OpenGL programs in DEV C++ ? If so how do I go =
about setting up DEV C++ to use Glut.

Thnx
Napoleon.

Hi Folks,
I'm just about starting to learn OpenGL and I have settled on the Book =
OpenGL Game Programming by Dave Astle and Kevin Hawking. I want your =
opinion on my choice and also if Dev C++ as it it now can handle OpenGL =
comfortably.

Napoleon.

The following should have read "Note that only one "using namespace std;"
statement is required ....."

I left out the "one", changes meaning of sentence. Usually the namespace
statement is placed immediatly after the #include directives, It does not
have to be however, as long as it occurs before the library function calls.
Sorry about typo.
ray w.

At 12:11 PM 6/27/01 -0700, you wrote:
>You can use #include <iostream> without the ".h", but you have to
>follow it somewhere with a "using namespace std;" statement. This
>can be anywhere before you use any of the library function in iostream. The
>use of the namespace statement is the new C++ standard
>and is implemented in Dev C++. Note that only "using namespace std;"
>statement is required in the program reguardless of how many #include
>directives you use.
>
>At 02:37 PM 6/27/01 +0700, you wrote:
>>I try to correct them. ..
>>
>>1. I think the correct code is
>>#include <iostream.h> not  #include <iostream>
>>
>>2. The prototype of: void getInput(string, float&); 
>>is not match to function declaration:
>>void getInput(string name, float salary) 
>>Second parameter must be fixed to: float& salary
>>
>>3. The same problem also causes of different prototypes to declarations.
>>The other prototypes of: 
>>float calcFwt(float, float); 
>>float calcFica(float, float); 
>>float calcNetPay(float, float, float); 
>>void displayInfo(string, float, float, float, float); 
>>
>>respectively are not match (type or number of parameters) to function
>>declarations:
>>float calcFwt(float salary, const float FWT_RATE, float fwtTax) 
>>float calcFica(float &salary, const float FICA_RATE, float ficaTax) 
>>float calcNetPay(float salary, float fwtTax, float ficaTax, float netPay) 
>>void displayInfo(string &name, float salary, float fwtTax, float ficaTax, 
>>float netPay) 
>>
>>If it's hard to make them consistent, dont make prototypes. Just put your
>>functions before main().
>>
>>
>>___Nurhidayat___
>>
>>
>>
>>_______________________________________________
>>Dev-cpp-users mailing list
>>Dev...@li...
>>http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>>
>>
>Ray Witter
>
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
Ray Witter

You can use #include <iostream> without the ".h", but you have to
follow it somewhere with a "using namespace std;" statement. This
can be anywhere before you use any of the library function in iostream. The
use of the namespace statement is the new C++ standard
and is implemented in Dev C++. Note that only "using namespace std;"
statement is required in the program reguardless of how many #include
directives you use.

At 02:37 PM 6/27/01 +0700, you wrote:
>I try to correct them. ..
>
>1. I think the correct code is
>#include <iostream.h> not  #include <iostream>
>
>2. The prototype of: void getInput(string, float&); 
>is not match to function declaration:
>void getInput(string name, float salary) 
>Second parameter must be fixed to: float& salary
>
>3. The same problem also causes of different prototypes to declarations.
>The other prototypes of: 
>float calcFwt(float, float); 
>float calcFica(float, float); 
>float calcNetPay(float, float, float); 
>void displayInfo(string, float, float, float, float); 
>
>respectively are not match (type or number of parameters) to function
>declarations:
>float calcFwt(float salary, const float FWT_RATE, float fwtTax) 
>float calcFica(float &salary, const float FICA_RATE, float ficaTax) 
>float calcNetPay(float salary, float fwtTax, float ficaTax, float netPay) 
>void displayInfo(string &name, float salary, float fwtTax, float ficaTax, 
>float netPay) 
>
>If it's hard to make them consistent, dont make prototypes. Just put your
>functions before main().
>
>
>___Nurhidayat___
>
>
>
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
Ray Witter

To whomever responsible:
Please remove me from this email distribution list.
Thank You,
Bill
wj...@al...


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Hi,

I have defined one procedure in Masm32, I have output as *.lib and I can't 
given for mingw
compiler the parameter for this lib or maybe the lib format is wrong? The 
linker sendet only
undefined symbol out and not wrong file format for me MASM32 librarry.

        Vatay Vil=E1gi Norbert

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I try to correct them. ..

1. I think the correct code is
#include <iostream.h> not  #include <iostream>

2. The prototype of: void getInput(string, float&); 
is not match to function declaration:
void getInput(string name, float salary) 
Second parameter must be fixed to: float& salary

3. The same problem also causes of different prototypes to declarations.
The other prototypes of: 
float calcFwt(float, float); 
float calcFica(float, float); 
float calcNetPay(float, float, float); 
void displayInfo(string, float, float, float, float); 

respectively are not match (type or number of parameters) to function
declarations:
float calcFwt(float salary, const float FWT_RATE, float fwtTax) 
float calcFica(float &salary, const float FICA_RATE, float ficaTax) 
float calcNetPay(float salary, float fwtTax, float ficaTax, float netPay) 
void displayInfo(string &name, float salary, float fwtTax, float ficaTax, 
float netPay) 

If it's hard to make them consistent, dont make prototypes. Just put your
functions before main().


___Nurhidayat___

Hi, 

 I wonder if you can tell me if DEVC++'s OpenGL has glaux libraries?? 

 I am learning from nehe.gamedev.net now and in tutorial 7 they say i need a glaux library so i am going to get devC++ as my compiler but i need to know if it has that...

Thanks

Steve.B

Oh and thanks to johanne and everyone else who helped me with my earlier problems!!!

Hi listers!

I am in the very beginning of my C and C++ journey and I have to develop a 
very difficult project (at least for me). I am working on a temperature 
measurement system that sends the temperature sensor information to a 
computer. I want to make a graphic of temperature x time to show the 
temperature changing trend. It will be an on-line measurement system, then 
every time temperature changes, graphic will change too.

I know it is not easy, but I'd like some help and ideas on how to do that, 
maybe some good book or tutorial, web page, source code, anything!

Now i am in the researching phase of this project, so any kind of help will 
be highly appreciated.

Regards,

Flavio de Souza
fla...@ne...
ICQ:78458203

After compiling the following program and getting no errors, I tried to build 
an executable and received external errors.  Can anyone help me?

//T7AppE08.cpp - displays employee's name, FWT, FICA tax, and net pay

#include <iostream>
#include <string>
using namespace std;

//function prototypes
void getInput(string, float&);
float calcFwt(float, float);
float calcFica(float, float);
float calcNetPay(float, float, float);
void displayInfo(string, float, float, float, float);

int main()
{   
    const float FWT_RATE = float(.2);
    const float FICA_RATE = float(.08);

    string name   = "";
    float salary  = 0.0;
    float fwtTax  = 0.0; 
    float ficaTax = 0.0;
    float netPay  = 0.0;
    
    //enter input items
    getInput(name, salary);

    //calculate taxes
    calcFwt(salary, FWT_RATE);
    calcFica(salary, FICA_RATE);

    //calculate net pay
    calcNetPay(salary, fwtTax, ficaTax);

    //display name, gross, taxes, and net
    displayInfo(name, salary, fwtTax, ficaTax, netPay);

    return 0;
}   //end of main function

//*****program-defined functions*****
void getInput(string name, float salary)
{
    cout << "Enter employee name: ";
    getline(cin, name);
    cout << "Enter weekly salary: ";
    cin >> salary;
}   //end of getInput function

float calcFwt(float salary, const float FWT_RATE, float fwtTax)
{
    fwtTax = salary * FWT_RATE;
    return fwtTax;
}   //end of calcFwt function

float calcFica(float &salary, const float FICA_RATE, float ficaTax)
{
    ficaTax = salary * FICA_RATE;
    return ficaTax;
}   //end of calcFica function

float calcNetPay(float salary, float fwtTax, float ficaTax, float netPay)
{
    netPay = salary - (fwtTax + ficaTax);
    return netPay;
}   //end of calcNetPay function

void displayInfo(string &name, float salary, float fwtTax, float ficaTax, 
float netPay)
{
    cout << fixed;
    cout.precision(2);
    cout << "Employee name: " << name << endl;
    cout << "Gross pay: $" << salary << endl;
    cout << "FWT tax: $" << fwtTax << endl;
    cout << "FICA tax: $" << ficaTax << endl;
    cout << "Net pay: $" << netPay << endl;

}   //end of displayInfo function

>  As far as i have been learning (not much but..) i have learnt ho to build a 3d world
> (kinda) but now i have read more and it says stuff about ive just created an engine
> -not in that form but along those lines- and i was just wondering if:
> 
> - A 3d engine is a 3d world already made and you just redisign it or what... i am very
> new and alough i have found tutorials i have yet found a site that tells me what
> everything is.

I'd say a 3D engine is the code to display a 3D world. I.e., you could create a 3D
world in a 3D-modeller, but then you didn't create an engine. (Like, you create some
polygons which look like a human, then I'd consider this as 3D-model or 3D-world.) But
if you write code to read the 3D-world-data in a program, and display it, then you did
create an engine. Even if all it can do are two function read_3d_from_file() and
render_3d_to_screen().
 
> - I am now starting to programm in OPENGL and i was just wondering -how do you create
> corners in games like to walk around a corner and gradually see the bend and how to
> create doors that can be opened to then load the room behind it?
> 
>  I cant find many OpenGL tutorials that tell me anything like these questions and When
> i write it in Forums people think im asking them to do it for me but i just want to
> know how to do it...im trying my best to get my foot under the door of the Prograamming
> industry but i cant find tutorials for opengl and cant buy online books because of lack
> of credit card (im only 16)

I keep seeing links to http://nehe.gamedev.net as answer to this sort of question, and I
just opened the site - and it seems like it has lots of OpenGL tutorials of any kind. And
they seem to be able to compile in dev-c++ with no problem, once you include the
opengl .h files.
(But it also looks like you could well need several months to understand everything
what's going on in OpenGL code :) )

Good luck with 3D programming..

Elias Pschernig

Hi,

did any one have an idea to convert a double to a string pointer ?
(not like _fcvt)



Thank you for help

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