Prototype build error?

I'm having trouble getting this code to work, I believe it has to do with my function prototypes. The error it keeps giving me is 'PlayMove': function does not take 1 arguments. I can't find any solutions to this.

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  #include <iostream>
#include <iomanip>
#include <string>
#include <sstream>
#include <fstream>

using namespace std;

const int ROWS = 3;
const int COLS = 3;

//Function Prototypes
void PlayMove();
bool IsGameOver();

//Main Function
int main()
{
	int RenderBoard();
	for (;;)
	{
		PlayMove(1);
		RenderBoard();
		if (IsGameOver())break;
		PlayMove(2);
		RenderBoard();
		if (IsGameOver())break;
	}

	return 0;
}
//Setting up the interior of the board
char board[3][3] = {
	{ '.','.','.' },
	{ '.','.','.' },
	{ '.','.','.' }
};

int totalMoves = 0;
//Setting up the frame
void RenderBoard()
{
	cout << "+-------+" << endl;
	for (int row = 0; row < ROWS; row++)
	{
		cout << "|";
		for (int col = 0; col < COLS; col++)
		{
			cout << " " << board[row][col];
		}
		cout << " |" << endl;
	}
	cout << "+-------+" << endl;
}

//Getting the moves from the players
void PlayMove(int playerNum)
{
	int row = -1, col = -1;
	string line;
	stringstream ss;
	for (;;)
	{
		cout << "Player #" << playerNum << ", please enter your move (row col)(space inbetween): ";
		getline(cin, line, '\n');
		ss.clear();
		ss.str(line);
		ss >> row >> col;
		if (row < 1 || row > 3 || col < 1 || col > 3)
		{
			cout << "Invalid move, please try again!" << endl;
		}
		else if (board[row - 1][col - 1] != '.')
		{
			cout << "That spot is taken! Please try again..." << endl;
		}
		else
		{
			break;
		}
	}
	board[row - 1][col - 1] = ((playerNum == 1) ? 'X' : 'O');
	totalMoves++;
}
//Checking Rows
int CheckRow(int row)
{
	if (board[row][0] == board[row][1] && board[row][1] == board[row][2])
	{
		return (board[row][0] == 'X') ? 1 : ((board[row][0] == 'O') ? 2 : 0);
	}
	return 0;
}
//Checking Columns
int CheckCol(int col)
{
	if (board[0][col] == board[1][col] && board[1][col] == board[2][col])
	{
		return (board[0][col] == 'X') ? 1 : ((board[0][col] == 'O') ? 2 : 0);
	}
	return 0;
}
//Checking Diagnals
int CheckDiag()
{
	if (
		(board[0][0] == board[1][1] && board[1][1] == board[2][2])
		||
		(board[2][0] == board[1][1] && board[1][1] == board[0][2])
		)
	{
		return (board[1][1] == 'X') ? 1 : ((board[1][1] == 'O') ? 2 : 0);
	}
	return 0;
}
//Declares the winner, and then outputs it.
void AnnounceWin(int player)
{
	cout << "Player #" << player << " wins!" << endl;
}

void PlayMove()
{
}

//Checks to see if the game is over
bool IsGameOver()
{
	int winner;
	for (int row = 0; row<ROWS; row++)
	{
		winner = CheckRow(row);
		if (winner != 0)
		{
			AnnounceWin(winner);
			return true;
		}
	}
	for (int col = 0; col<COLS; col++)
	{
		winner = CheckCol(col);
		if (winner != 0)
		{
			AnnounceWin(winner);
			return true;
		}
	}
	winner = CheckDiag();
	if (winner != 0)
	{
		AnnounceWin(winner);
		return true;
	}
	if (totalMoves == 9)
	{
		cout << "It's a tie." << endl;
		return true;
	}
	return false;
}
The error it keeps giving me is 'PlayMove': function does not take 1 arguments.


On line 13 you have a function prototype for PlayMove() - looking at the signature reveals that it doesn't take any arguments.

On line 22 and 25 you attempt to call PlayMove() with arguments. Huh?

On line 57 you have a function definition for PlayMove(), which suddenly is supposed to have arguments.

On line 122 you have another function definition for PlayMove(), this time with no arguments and no function body. Was this supposed to be an overload of some kind?
Last edited on
I tried the "potential fixes" on the compiler, but it suggested the function definition on line 122.
On lines 22 and 25, I was trying to make it switch player turns there, since the program is meant to be played by two players.
On line 13, what arguments should I add to it? I'm confused.
On line 57, I was hoping that my program would have accepted the prototype into it.

Any advice on how to fix this? Thanks.
Last edited on
Change line 13 from this:
void PlayMove();

To this:
void PlayMove(int playerNum);

Remove lines 122 - 124.

This should fix it.
Last edited on
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