Operator Overloading

[kennny2004]

K well we have an assiment to do the operator overloading and here is where i am stuck so for exmple we need to do in main program

ClassName n1;//Declaring variable
int x;
x=n1++;
x=++n1;

This is what i have in the calss but how do i tell diffirence between before and after. Thanks i hope u see what i mean.

                           void operator ++()
	   		  {
			   	   ++number;
	   		  }
	   		  void operator ++()
	   		  {
			   	   number++
	   		  }

[ChaosEngine]

ahh this is a tricksy one! in order to tell the difference, the committee added an int parameter to the postfix operator. It's a bit of a hack, but it works.

class X
{
public:
    X operator++(int); // postfix operator (i.e. x++)
    X& opertor++(); // prefix operator (i.e. ++x)
};

note that the postfix returns an object and the prefix returns a reference. This is because postfix makes a copy BEFORE the increment and returns that. prefix just returns *this.

This is why you should always use prefix unless you have a good reason not to.

edit: BTW the extra parameter must be an int. you don't use the value anyway.

[kennny2004]

Yah thanks that worked that was simple assiment phew lol last one we did was double link list and swap function gar hate that one but beside that thanks.