Compiling Basic C++ Class

Question

I'm trying to compile a very basic C++ program and there is something wrong. Whatever it is, I'm sure it's very obvious. I have three very short files.

main.cpp:

#include <iostream>
#include "Player.h"

using namespace std;

int main()
{
    Player rob;
    cout << "Iran" << endl;
    return 0;
}

Player.h

#ifndef PLAYER_H
#define PLAYER_H

class Player {
public:
    Player();
private:
    int score;
};

#endif

Player.cpp

#include "Player.h"

Player::Player(){
    score = 0;
}

The command I'm using to compile is g++ main.cpp -o main And the error I'm being issued by the compiler is:

/tmp/ccexA7vk.o: In function `main':
main.cpp:(.text+0x10): undefined reference to `Player::Player()'
collect2: error: ld returned 1 exit status

Note: All these files are in the same directory.

Answer 1

As mentioned in the comments, you are not feeding Player.cpp into compiler. You should give all the cpp files to the compiler.

g++ main.cpp Player.cpp -o main