#include <iostream>
using namespace std;
class Rectangle {
int width, height;
public:
Rectangle();
Rectangle(int, int);
int getWidth() { return width; }
int getHeight() { return height; }
int area(void) { return (width*height); }
};
Rectangle::Rectangle() {
width = 5;
height = 5;
}
Rectangle::Rectangle(int a, int b) {
width = a;
height = b;
}
int main() {
Rectangle r;
Rectangle *p;
p = &r;
r.getWidth = 2;
r.getHeight = 4;
cout << p->getWidth() << endl;
cout << p->getHeight() << endl;
}
If I do this, it says that the function was used as the left operand, what should I do?
c++
This is because we did a substitution operation on the function name in the code below.
r.getWidth = 2;
r.getHeight = 4;
If you want to set a value for that variable, you can use the method of creating and invoking the variable setting function as shown below.
void setWidth(int v) { width = v; }
void setHeight(int v) { height = v; }
//...
r.setWidth(2);
r.setHeight(4);
// ...
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