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Using a Friend
Using a friend function is quite easy. The following example explains a friend function to access members of two classes.
class Bclass; // Forward Declaration
class Aclass
{
public :
Aclass(int v)
Avar = v;
}
friend int addup(Aclass &ac, Bclass &bc);
private :
int Avar;
};
class Bclass
Bclass(int v)
Bvar = v;
int Bvar;
int addup(Aclass &ac, Bclass &bc)
return( ac.Avar + bc.Bvar);
void main()
Aclass aobj;
Bclass bobj;
int total;
total = addup(aobj,bobj);
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// Basic pointer code #include "stdafx.h" #include iostream using namespace std; int _tmain(int argc, _TCHAR* argv[]) { int FirstNumber, SecondNumber;
Pointers are just numbers, representing addresses in memory. You can add to and subtract from pointers, for instance. It is pretty easy to make mistakes with pointer math, however,
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payment system, in c++ only..just use the printf or scanf.please
how to make basics strong and best logic skills what are the best way to be a expert programmer ? what counts a lot knowledge or practice?
A constructor that accepts one argument of a dissimilar type.
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