Overloading Unary operators in C++

mohdmohsinkhanee

using namespace std;

class MyCounter

{

private:

int count;

public:

MyCounter();

MyCounter(int);

int display();

MyCounter operator++(); // PreFix version

MyCounter operator++(int); // PostFix Version

};

Is it possible to change the int parameter in the operator++ functions to distinguish between the prefix and postfix versions of the operator?

I attempted to make this change, but I encountered a compilation error....

What may be the possible reasons?

sumacangadi

Hi Mohsin,

This int doesn't actually mean integer, nor is it really an argument. It only instructs the compiler to produce the operator's postfix variant. Because C++ designers like to reuse pre-existing operators and keywords for many purposes, they decided to use int to denote postfix.

Overloading Unary operators in C++

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