Passing enum to a constructor

c++, constructor, enums

Solution

First of all, you should make Color protected or public. One simple way to make Color from enum to string is to use an array.

class Shape {
public:
    enum Color {
        Red = 0, // although it will also be 0 if you don't write this
        Orange, // this will be 1
        Yellow,
        Green
    };

};

class Rectangle : public Shape {
public:
    Rectangle(int x, int y, int B, int H, Color color);
};

string getColorName(Shape::Color color) {
    string colorName[] = {"Red", "Orange", "Yellow", "Green"};
    return colorName[color];
}

void test() {
    // now you may call like this:
    Rectangle r(1,2,3,4, Shape::Red);
    // get string like this:
    string colorStr = getColorName(Shape::Yellow);
}

Problem

I have a base class `Shape` and some other derived classes like `Circle`, `Rectangle` and so on. This is my base class ``` class Shape { private: enum Color { Red, Orange, Yellow, Green }; protected: int X; int Y; // etc... }; ``` This is one of my derived classes ``` class Rectangle : public Shape { private: int Base; int Height; string shapeName; //etc... }; ``` This is how I call a constructor: ``` Rectangle R1(1, 3, 2, 15, "Rectangle 1"); ``` My constructor: ``` Rectangle::Rectangle(int x, int y, int B, int H, const string &Name) :Shape(x, y) { setBase(B); setHeight(H); setShapeName(Name); } ``` I want to add one argument to my constructor so I can pass the color of the shape using `enum Color` in my base class. How can I do that? I also want to print the color as a `string`. I have no idea on how to use `enum` as an argument in a constructor. Any help is appreciated...

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