need quicky help..

[trapeze]

i was trying to do number swap..but in vain..

#include<iostream>

using namespace std;


function change(int *a , int *b)
{
int temp;
temp = *a;
*a = *b;
*b = temp;
}

int a=1, b=10;
int main()
{

cout << "a is "<<a<<" and b is "<<b<<endl;

change(&a, &b);

cout << "a becomes "<<a<<" and b becomes "<<b<<endl;
}

---------------
6 `function' does not name a type
20 `change' undeclared (first use this function)
---------------

i've no ideas... plz give some comments. great thx.

 

[bismi.kamal]

No function in C or C++ has the keyword function but it should have a return type. So, do try this

#include<iostream>
#include<conio.h>
using namespace std;
void change(int *a , int *b)
{
int temp;
temp = *a;
*a = *b;
*b = temp;
}
int a=1, b=10;
int main()
{
cout << "a is "<<a<<" and b is "<<b<<endl;
change(&a, &b);
cout << "a becomes "<<a<<" and b becomes "<<b<<endl;
getch();
return 0;
}

 

[trapeze]

Yippee

YES ! It worked ! Thank you.

BTW, conio.h seems of C header. Does it have an equivalent in C++ ? If I'd like to replace conio.h and getch() with their C++ counterparts, what should I write instead ?

 

[bismi.kamal]

Re: Alternate for conio.h in C++

Ofcourse you can use conio.h in C++ but some compilers/systems wont support but you can always use system("pause"); irrespective of any systems/compilers, for which the definition is in stdlib header file, So you need to include that too.

regards,
*KAMAL*

 

[bismi.kamal]

Re: Alternate for conio.h in C++

Ofcourse you can use conio.h in C++ but some compilers/systems wont support but you can always use system("pause"); irrespective of any systems/compilers, for which the definition is in stdlib...

 

[bismi.kamal]

Instead of conio.h header

Try using system("pause"); statement and include the header file stdlib.h