Xcode not compiling my code but other compilers like viscid are compelling it

#include <iostream>

//#include "Cat.h"

//#include "Cat.cpp"

using namespace std;



class Cat{



    private:

        bool happy;



    public:

        void speak();

        void makeHappy();

        void makeSad();

};



void Cat::speak(){

    if(happy){

        cout << "meoww!!!" << endl;

    }

    else{

        cout << "HHHHHHHH" << endl;

    }

}

    

void Cat::makeHappy(){

    happy = true;

}

void Cat::makeSad(){

    happy = false;

}



int main() {

    Cat jim;

    jim.makeHappy();

    jim.speak();



    Cat chomu;

    chomu.makeSad();

    chomu.speak();

    return 0;

}



someone please help