Thread: Getting an undeclared identifier error in my program

hi this program is supposed to be able to play tic-tac-toe... but in my .cpp file I keep getting this error "cpp(19) : error C2065: 'Board' : undeclared identifier"

can anyone see whats going on?

thanks guys

Code:

//FileName: GameBoard.h
#include <iostream>
#include <string>

#ifndef GAMEBOARD_H
#define GAMEBOARD_H

class GameBoard
{
	private:       
        char Board[3][3];

	public:
		GameBoard();
		void setSquare(char symbol, int r, int c){Board[r][c]=symbol;}
		char getSquare(int r, int c) {return Board[r][c];}
		int haveWinner();
        void makeComputerPlay(int &row, int &col);
					
};
#endif

Code:

#include <GL\glut.h>
#include "GameBoard.h"

GameBoard::GameBoard()
{

	for (int r=0; r<3; r++)
	{
		for(int c=0; c<3; c++)
		{
			Board[r][c]=' ';
           
		}
	}
}

char haveWinner()
{
			if (Board[0][0]==Board[0][1]&& Board[0][1]==Board[0][2]&&Board[0][0]!=' ')
			{
				return Board[0][0];
			}
			else if(Board[1][0]==Board[1][1]&&Board[1][1]==Board[1][2]&&Board[1][1]!=' ')
			{
				return Board[1][0];
			}
			else if(Board[2][0]==Board[2][1]&&Board[2][1]==Board[2][2]&&Board[2][2]!=' ')
			{
				return Board[2][0];
			}
			else if(Board[0][0]==Board[1][0]&&Board[1][0]==Board[2][0]&&Board[0][0]!=' ')
			{
				return Board[0][0];
			}
			else if(Board[0][1]==Board[1][1]&&Board[1][1]==Board[2][1]&&Board[0][1]!=' ')
			{
				return Board[0][1];
			}
			else if(Board[0][2]==Board[1][2]&&Board[1][1]==Board[1][2]&&Board[0][1] !=' ')
			{
				return Board[0][2];
			}
			else if(Board[0][0]==Board[1][1]&&Board[1][1]==Board[2][2]&&Board[0][0]!=' ')
			{
				return Board[0][0];
			}
			else if(Board[2][2]==Board[1][1]&&Board[1][1]==Board[2][2]&&Board[2][2]!=' ')
			{
				return Board[2][2];
			}

			return ' ';

}

void makeComputerPlay(int &row, int &col)
{
    
	if(Board[1][1]==' ') //middle square
	{
		Board[1][1] = 'O';
		row = 1;
		col = 1;
	}
	
    if(Board[0][0]==' ') //upper left
	{
		Board[0][0] = 'O';
		row = 0;
		col = 0;
	}
	if(Board[2][0]==' ')//lower lef
	{
		Board[2][0] = 'O';
		row = 2;
		col = 0 ;
    }
	if(Board[0][2]==' ')//upper right //&&Board==[2][0]
	{
		Board[0][2]='O';
		row = 0;
		col =2 ;
	}
	if(Board[2][2])// lower middle
	{
		Board[2][2]='O';
		row = 2;
		col = 2;
	}
   
}

char haveWinner() has no access to any variable named Board...


in your header file you declared something called 'int haveWinner();'

but in your cpp you have char haveWinner, and you didnt declare how -i think- you intended

try using these, i think this is what you meant maybe.

Code:

char GameBoard::haveWinner()

Code:

void GameBoard::makeComputerPlay(int &row, int &col)

and don't forget to correct the header file from char to int if thats what you intend

Thank you so much.. I really appreciate it.. I knew it would be something that I was over looking.. thanks again. it works now