#include <Expr_PolyExpression.hxx>

Inheritance diagram for Expr_PolyExpression:

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Public Member Functions
Standard_Integer	NbOperands () const
	returns the number of operands contained in <me>

const Handle< Expr_GeneralExpression > &	Operand (const Standard_Integer index) const
	Returns the <index>-th operand used in <me>. An exception is raised if index is out of range.

void	SetOperand (const Handle< Expr_GeneralExpression > &exp, const Standard_Integer index)
	Sets the <index>-th operand used in <me>. An exception is raised if <index> is out of range Raises InvalidOperand if <exp> contains <me>.

Standard_Integer	NbSubExpressions () const override
	returns the number of sub-expressions contained in <me> ( >= 2)

const Handle< Expr_GeneralExpression > &	SubExpression (const Standard_Integer I) const override
	Returns the sub-expression denoted by in <me> Raises OutOfRange if > NbSubExpressions(me)

Standard_Boolean	ContainsUnknowns () const override
	Does <me> contains NamedUnknown ?

Standard_Boolean	Contains (const Handle< Expr_GeneralExpression > &exp) const override
	Tests if <exp> is contained in <me>.

void	Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with) override
	Replaces all occurrences of with <with> in <me> Raises InvalidOperand if <with> contains <me>.

Handle< Expr_GeneralExpression >	Simplified () const override
	Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation.

Public Member Functions inherited from Expr_GeneralExpression
virtual Handle< Expr_GeneralExpression >	ShallowSimplified () const =0
	Returns a GeneralExpression after a simplification of the arguments of <me>.

virtual Handle< Expr_GeneralExpression >	Copy () const =0
	Returns a copy of <me> having the same unknowns and functions.

virtual Standard_Boolean	IsLinear () const =0
	Tests if <me> is linear on every NamedUnknown it contains.

virtual Standard_Boolean	IsShareable () const
	Tests if <me> can be shared by one or more expressions or must be copied. This method returns False as a default value. To be redefined ( especially for NamedUnknown).

virtual Standard_Boolean	IsIdentical (const Handle< Expr_GeneralExpression > &Other) const =0
	Tests if <me> and <Other> define the same expression. Warning: This method does not include any simplification before testing. It could also be very slow; to be used carefully.

virtual Handle< Expr_GeneralExpression >	Derivative (const Handle< Expr_NamedUnknown > &X) const =0
	Returns the derivative on <X> unknown of <me>

virtual Handle< Expr_GeneralExpression >	NDerivative (const Handle< Expr_NamedUnknown > &X, const Standard_Integer N) const
	Returns the <N>-th derivative on <X> unknown of <me>. Raise OutOfRange if N <= 0.

virtual Standard_Real	Evaluate (const Expr_Array1OfNamedUnknown &vars, const TColStd_Array1OfReal &vals) const =0
	Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed.

Standard_Real	EvaluateNumeric () const
	Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed.

virtual TCollection_AsciiString	String () const =0
	returns a string representing <me> in a readable way.

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.

virtual	~Standard_Transient ()
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.

Standard_Integer	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
	Expr_PolyExpression ()
	initialize an empty list of operands.

void	AddOperand (const Handle< Expr_GeneralExpression > &exp)
	Adds an operand to the list of <me>.

void	RemoveOperand (const Standard_Integer index)
	Remove the operand denoted by <index> from the list of <me>. Raises exception if <index> is out of range or if removing operand intend to leave only one or no operand.

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.

Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Constructor & Destructor Documentation

◆ Expr_PolyExpression()

Expr_PolyExpression::Expr_PolyExpression ( )

protected

initialize an empty list of operands.

Member Function Documentation

◆ AddOperand()

void Expr_PolyExpression::AddOperand ( const Handle< Expr_GeneralExpression > & exp )

protected

Adds an operand to the list of <me>.

◆ Contains()

Standard_Boolean Expr_PolyExpression::Contains ( const Handle< Expr_GeneralExpression > & exp ) const

overridevirtual

Tests if <exp> is contained in <me>.

Implements Expr_GeneralExpression.

◆ ContainsUnknowns()

Standard_Boolean Expr_PolyExpression::ContainsUnknowns ( ) const

overridevirtual

Does <me> contains NamedUnknown ?

Implements Expr_GeneralExpression.

◆ NbOperands()

Standard_Integer Expr_PolyExpression::NbOperands ( ) const

returns the number of operands contained in <me>

◆ NbSubExpressions()

Standard_Integer Expr_PolyExpression::NbSubExpressions ( ) const

overridevirtual

returns the number of sub-expressions contained in <me> ( >= 2)

Implements Expr_GeneralExpression.

◆ Operand()

const Handle< Expr_GeneralExpression > & Expr_PolyExpression::Operand ( const Standard_Integer index ) const

Returns the <index>-th operand used in <me>. An exception is raised if index is out of range.

◆ RemoveOperand()

void Expr_PolyExpression::RemoveOperand ( const Standard_Integer index )

protected

Remove the operand denoted by <index> from the list of <me>. Raises exception if <index> is out of range or if removing operand intend to leave only one or no operand.

◆ Replace()

void Expr_PolyExpression::Replace	(	const Handle< Expr_NamedUnknown > &	var,
		const Handle< Expr_GeneralExpression > &	with )

overridevirtual

Replaces all occurrences of with <with> in <me> Raises InvalidOperand if <with> contains <me>.

Implements Expr_GeneralExpression.

◆ SetOperand()

void Expr_PolyExpression::SetOperand	(	const Handle< Expr_GeneralExpression > &	exp,
		const Standard_Integer	index )

Sets the <index>-th operand used in <me>. An exception is raised if <index> is out of range Raises InvalidOperand if <exp> contains <me>.

◆ Simplified()

Handle< Expr_GeneralExpression > Expr_PolyExpression::Simplified ( ) const

overridevirtual

Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation.

Implements Expr_GeneralExpression.

◆ SubExpression()

const Handle< Expr_GeneralExpression > & Expr_PolyExpression::SubExpression ( const Standard_Integer I ) const

overridevirtual

Returns the sub-expression denoted by in <me> Raises OutOfRange if > NbSubExpressions(me)

Implements Expr_GeneralExpression.

The documentation for this class was generated from the following file:

Expr_PolyExpression.hxx

Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ Expr_PolyExpression()

Member Function Documentation

◆ AddOperand()

◆ Contains()

◆ ContainsUnknowns()

◆ NbOperands()

◆ NbSubExpressions()

◆ Operand()

◆ RemoveOperand()

◆ Replace()

◆ SetOperand()

◆ Simplified()

◆ SubExpression()