C++ program for pre and post increment using operator overloading

#include<iostream>//error
using namespace std;
class MyIncrClass
{
private:
int mCounter;
public:
MyIncrClass()
{
mCounter=0;
}
MyIncrClass operator++() //overloading of pre increment
{
++this->mCounter;
return *this;
}
MyIncrClass operator++(int)  //dummy int argument is passed to mention overloading of post increment
{
MyIncrClass temp;
temp.mCounter=this->mCounter++;
return temp;
}
void display()
{
cout<<mCounter<<endl;
}
};
int main()
{
MyIncrClass counter;
counter++; //post increment operator function is called here
counter.display();
++counter; //pre increment operator function is called here
counter.display();
return 0;
}