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Article #13782

C++ OO met DJGPP

#13782
From: Luismurf
Date: Thu, 24 May 2001 23:31
172 lines
4769 bytes
Hallo,

Heeft hier iemand ervaring met het programma DJGPP?

Ik heb hier een object georienteerd c++ programma, maar ik weet niet
hoe ik dat moet compileren/linken in djgpp

Of zijn er nog andere aan te raden compilers?


dit is het concept:
klasse                                            variabelen
person                                            naam
|
+bediende		              wedde
|    |
|    +verkoper		            verkoopcijfer
|
+arbeider	                   	 uur
                                                    	loon



de source:
---person.h------------------------------
#ifndef PERSON.H
#define PERSON.H

class person
{
protected:            file://subclasses kunnen die zien
        char naam[25];
        double salaris;
public:
        virtual void display(void);
};

#endif
------------------------------------------
---person.cpp----------------------------
#include <iostream.h>
#include "person.h"

            // This method should never be called.  If it is ever
            // called, it is considered an error.
void
person::display(void)
{
   cout << "person::display - missing subclass method\n";
}
------------------------------------------
---beroep.h------------------------------
#ifndef BEROEP.H
#define BEROEP.H

file://Hier worden drie subclasses van person gemaakt.
file://bediende, arbeider en verkoper

#include "person.h"

class bediende : public person
{
        double wedde;
 public:
        void init_data(char in_naam[], double in_wedde);
        void display(void);
};

class arbeider : public person
{
        double uur;
        double loon;
 public:
        void init_data(char in_naam[], double in_uur, double in_loon);
        void display(void);
};

class verkoper : public bediende
{
        double verkoopcijfer;
 public:
        void init_data(char in_naam[], double in_wedde, double
in_verkoopcijfer);
        void display(void);
};

#endif
------------------------------------------
---beroep.cpp----------------------------
#include <iostream.h>
#include <string.h>
#include "person.h"
#include "beroep.h"

void
bediende::init_data(char in_naam[], double in_wedde)
{
   strcpy(naam,in_naam);
   salaris = in_wedde;
}

void
bediende::display(void)
{                               
   cout << "Bediende --> " << naam << " verdient " << salaris <<".\n";
}

void
arbeider::init_data(char in_naam[], double in_uur, double in_loon)
{
   strcpy(naam,in_naam);
   salaris = in_uur*in_loon;
}

void
arbeider::display(void)
{
   cout << "Arbeider --> " << naam << " verdient " << salaris <<
".\n";
}

void
verkoper::init_data(char in_naam[], double in_wedde, double
in_verkoopcijfer)
{
   strcpy(naam,in_naam);
   salaris = in_wedde+in_verkoopcijfer*0.01;
}

void
verkoper::display(void)
{
   cout << "Verkoper --> " << naam << " verdient " << salaris <<
".\n";
}
------------------------------------------
---bereken.cpp---------------------------
#include <iostream.h>
#include "person.h"
#include "beroep.h"

person *staff[10];

int main()
{
 bediende *bedpt;
 arbeider *arbpt;
 verkoper *verpt;

 bedpt = new bediende;
 bedpt->init_data("Albert",40000.0);
 staff[0]=bedpt;
/*
 arbpt = new arbeider;
 arbpt->init_data("Cyriel",150,300.0);
 staff[1]=arbpt;

 verpt = new verkoper;
 verpt->init_data("Bea",20000.0,1000000.0);
 staff[2]=verpt;

 for (int index=0;index<3;index++)
 {
 staff[index]->display();
 }
*/
 staff[0]->display();
 cout << "End of list\n";
 return 0;
}
------------------------------------------
~END OF SOS~
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From: Luismurf <stijn_alive@hotmail.com>
Newsgroups: be.comp.programming
Subject: C++ OO met DJGPP
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