Thread: Calling a function from a function that comes after it

Hi, I want to call again() from game(), it works on windows but not on mac. When I call it, it says again() is not defined, so I put it before game. Now game() isn't defined. Is there anyway to make this mac compatible?

Code:

#include <cstdlib>
#include <ctime>
#include <iostream>

int again()
{
    using std::cout;
    using std::cin;
    using std::endl;
    cout << "Play again? Y/N ";
    char again;
    cin >> again;
    if (again == 'y' || again == 'Y')
    {
        game();
    }
    else
    {
    return 0;
    }
}

int game()
{
    using std::cout;
    using std::cin;
    using std::endl;
    
    srand((unsigned)time(NULL));
    int randomnum, difficultnumber, number;
    randomnum = rand()%1001;
    char difficulty;
    cout << "Difficulty\n[E]asy (15 guesses) [N]ormal (10 guesses) or [H]ard (5 guesses)?: ";
    cin >> difficulty;
    if (difficulty == 'e' || difficulty == 'E')
    {
        difficultnumber = 15;
        cout << "Easy." << endl << endl << "You have " << difficultnumber << " guesses left.";
    }
    else
    {
        if (difficulty == 'n' || difficulty == 'N')
        {
            difficultnumber = 10;
            cout << "Normal." << endl << endl << "You have " << difficultnumber << " guesses left.";
        }
        else
        {
            if (difficulty == 'h' || difficulty == 'H')
            {
                difficultnumber = 5;
                cout << "Hard." << endl << endl << "You have " << difficultnumber << " guesses left.";
            }
        }
    }
    while (difficultnumber > 0)
    {
        cout << "\nGuess a number between 1 and 1000: ";
        cin >> number;
        if (number == randomnum)
        {
            cout << "You won in " << difficultnumber << " guesses!\n";
			again();
        }
        if (number > randomnum)
        {
            cout << "Too High.";
            difficultnumber--;
            if (difficultnumber == 0)
            {
                cout << endl << "\nSorry, but you have lost. The number was " << randomnum << ".\n";
				again();
            }
            else
            {
                cout << "\nYou have " << difficultnumber << " guesses left.\n";
            }   
        }
        if (number < randomnum)
        {
            cout << "Too Low.";
            difficultnumber--;
            if (difficultnumber == 0)
            {
                cout << endl << "\nSorry, but you have lost. The number was " << randomnum << ".\n";
				again();
            }
            else
            {
                cout << "\nYou have " << difficultnumber << " guesses left.\n";
            }
        }
    }    
}

int main()
{
    game()
	return 0;
}

Thank you,