[C++] 명품 C++ 프로그래밍 실습문제 7장 5번

[C++]명품 C++ 프로그래밍 실습문제 7장 5번

[C++]명품 C++ programming 실습문제 7장 5번

명품 C++ 프로그래밍실습문제/연습문제 /C++

//5-1
#include <iostream>
#include <string>
#include <ctime>
#include <cstdlib>
// 외부함수
using namespace std;
    
class Color{
 
    int red;
    int green;
    int blue;
public:
    Color(int red=0, int green=0 ,int blue=0){
        this -> red =red;
        this -> green =green;
        this -> blue =blue;
    }
    Color operator+(Color &op2){
        Color tmp;
        tmp.red = this->red + op2.red;
        tmp.green = this->green + op2.green;
        tmp.blue  = this->blue + op2.blue;
        return tmp;
    }
    bool  operator==(Color &op2){
        if(this->red == op2.red && this->green == op2.green && this->blue == op2.blue)
            return true;
        else
            return false;

    }
    void show(){
        cout << this->red << " " << this->green << " " << this->blue << endl;
    }
    
};

int main() {
    Color red(255,0,0);
    Color blue(0,0,255);
    Color c;
    c = red + blue;
    c.show();
    
    Color fuchsia(255,0,255);
    if(c == fuchsia)
        cout << "보라색 맞음" << endl;
    else
        cout << "보라색 아님" << endl;
    


    return 0;
}
//5-2
#include <iostream>
#include <string>
#include <ctime>
#include <cstdlib>
//fr함수로 구현
using namespace std;
    
class Color{
 
    int red;
    int green;
    int blue;
public:
    Color(int red=0, int green=0 ,int blue=0){
        this -> red =red;
        this -> green =green;
        this -> blue =blue;
    }
    friend Color operator+(Color &op1,Color &op2);
    friend bool  operator==(Color &op1,Color &op2);
    void show(){
        cout << this->red << " " << this->green << " " << this->blue << endl;
    }
    
};
bool operator==(Color &op1,Color &op2){
    if(op1.red == op2.red && op2.green == op2.green && op1.blue == op2.blue)
        return true;
    else
        return false;
}
Color operator+(Color &op1,Color &op2){
    Color tmp;
    tmp.red = op1.red + op2.red;
    tmp.green = op1.green + op2.green;
    tmp.blue  = op1.blue + op2.blue;
    return tmp;
}



int main() {
    Color red(255,0,0);
    Color blue(0,0,255);
    Color c;
    c = red + blue;
    c.show();
    
    Color fuchsia(255,0,255);
    if(c == fuchsia)
        cout << "보라색 맞음" << endl;
    else
        cout << "보라색 아님" << endl;
    


    return 0;
}