Question

I was looking into some C++ tutorial and encountered a function declaration inside the class

class CRectangle {
    int x, y;
public:
    int area (void)  {return x*y;}
};

Now I am wondering what is the use of void after int area?

Answer 1

void in this case means that the function doesn’t take any parameters.

Also – syntax error, you probably meant {} brackets and you had the semicolon in the wrong place.

int area (void){ return (x*y); }