if ((board[0][0]) == (board[0][1]) == (board[0][2])){
        return 1;
    }
    if ((board[1][0]) == (board[1][1]) == (board[1][2])){
        return 2;
    }
    if ((board[2][0]) == (board[2][1]) == (board[2][2])){
        return 3;
    }

I am trying to check if certain elements in an array(board[3][3]) to return a number if specific elements are equal.
but I am getting this warning :
suggest parentheses around comparison in operand of ‘=='[-Wparentheses]