pointer

[Chin Pei Ying]

#include <iostream>
#include<conio.h>
using namespace std;
void main()
{
double *p,*q,*m,x1,x2;
void sumpo(double*, double*, double*);
p=&x1;
q=&x2;
cout << "Enter the doubles";
cin >> x1 >> x2;
sumpo( &p, &q, &m);
cout << *p << *q << *m;
_getch();
}
void sumpo( double* ptr_p, double* ptr_q, double* ptr_m)
{
*ptr_m=*ptr_p +*ptr_q;
}
Any wrong with the program?Thank you

[mutexe]

firstly it does not compile.
have you tried to compile it yourself?

secondly this:

void sumpo(double*, double*, double*);

you should not put function declarations inside your main function.

and can you use code tags please? :)

edit: you also have not initialised m..

[Mats]

As I said before you must use int main(); not void main();

[Chin Pei Ying]

1#include <iostream>
2#include<conio.h>
3using namespace std;
4int main()
5{
6 double *p,*q,*m,x1,x2,sum;
7 void sumpo(double *, double *, double *);
8 p=&x1;
9 q=&x2;
10 m=&sum;
11 cout << "Enter the doubles";
12 cin >> x1 >> x2;
13 sumpo( &p, &q, &m);
14 cout << *p << *q << *m;
15 _getch();
16}
17void sumpo( double* ptr_p, double* ptr_q, double* ptr_m)
18{
19 *ptr_m=*ptr_p +*ptr_q;
20}

[Chin Pei Ying]

sorry,i forget to initiate m.But my program still cannot run.

[mutexe]

read my post again.

and read mats post again.