void squareVal(int num)

{

num = num * num;

cout<<"\t\tInside squareVal(int num): num = "<<num<<endl;

}

void squarePointer(int *num)

{

*num = (*num) * (*num);

cout<<"\t\tInside squarePointer(int *num): *num = "<<*num<<endl;

}

void squareReference(int &num)

{

num = num * num;

cout<<"\t\tInside squareReference(int &num): num = "<<num<<endl;

}

void squarePointerReference(int* &num)

{

*num = (*num) * (*num);

cout<<"\t\tInside squareReference(int &num): *&num = "<<*num<<endl;

}