CODEWITHSUNDEEP
c++inheritance
ChewingSomething
ChewingSomething

Reputation: 13

use '&' to create a pointer to member error

I'm new to c++. I'm doing a tutorial question regarding inheritance. I got this error "'Box::getVolume': Non-standard syntax; use '&' to create a pointer to member". Since I'm relatively new, I don't understand what is needed to fix it. This is my code.

Rectangle.h

class Rectangle {
private:
   int length;
   int width;

public:
   Rectangle();
   void setR(int, int);
   int getLength();
   int getWidth();
   int getArea();
   void displayR();     
};

Rectangle.cpp

Rectangle::Rectangle(){}

void Rectangle::setR(int l, int w) {
    length = l;
    width = w;
}

int Rectangle::getLength() {
    return length;
}

int Rectangle::getWidth() {
    return width;
}

int Rectangle::getArea(){ 
    return length*width;
}

void Rectangle::displayR() {
    cout<<"Length: "<<getLength()<<endl;
    cout<<"Width: "<<getWidth()<<endl;
}

Box.h

class Box : public Rectangle {
private:
   int height;

public:
   Box();
   void setBox(int);
   int getHeight();
   int getVolume();
   void displayB();

};

Box.cpp

Box::Box(){ }

void Box::setBox(int h){
   height = h;
}

int Box::getHeight(){
   return height;
}

int Box::getVolume(){ 
   return getArea()*height;
}

void Box::displayB(){
   cout<<"Box height: "<<getHeight()<<endl;
   cout<<"Box volume: "<<getVolume()<<endl;

Upvotes: 1

Views: 8641

Answers (1)

vsoftco
vsoftco

Reputation: 56567

int getVolume(){ return getArea()*height;}

should be

int Box::getVolume(){ return getArea()*height;}

Although this shouldn't trigger a compiler error (you'll get a linker error though since Box::getVolume() remains undefined).

Upvotes: 1

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