Defines the general purposes of any function. More...

#include <Expr_GeneralFunction.hxx>

Inheritance diagram for Expr_GeneralFunction:

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Public Member Functions
virtual int	NbOfVariables () const =0
	Returns the number of variables of <me>.

virtual occ::handle< Expr_NamedUnknown >	Variable (const int index) const =0
	Returns the variable denoted by <index> in <me>. Raises OutOfRange if index > NbOfVariables.

virtual occ::handle< Expr_GeneralFunction >	Copy () const =0
	Returns a copy of <me> with the same form.

virtual occ::handle< Expr_GeneralFunction >	Derivative (const occ::handle< Expr_NamedUnknown > &var) const =0
	Returns Derivative of <me> for variable .

virtual occ::handle< Expr_GeneralFunction >	Derivative (const occ::handle< Expr_NamedUnknown > &var, const int deg) const =0
	Returns Derivative of <me> for variable with degree <deg>.

virtual double	Evaluate (const NCollection_Array1< occ::handle< Expr_NamedUnknown > > &vars, const NCollection_Array1< double > &vals) const =0
	Computes the value of <me> with the given variables. Raises NotEvaluable if <vars> does not match all variables of <me>.

virtual bool	IsIdentical (const occ::handle< Expr_GeneralFunction > &func) const =0
	Tests if <me> and <func> are similar functions (same name and same used expression).

virtual bool	IsLinearOnVariable (const int index) const =0
	Tests if <me> is linear on variable on range <index>

virtual TCollection_AsciiString	GetStringName () const =0

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 ()=default
	Destructor must be virtual.

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

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

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	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.

bool	IsKind (const char *const 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.

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

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

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

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.

Detailed Description

Defines the general purposes of any function.

Member Function Documentation

◆ Copy()

virtual occ::handle< Expr_GeneralFunction > Expr_GeneralFunction::Copy ( ) const

pure virtual

Returns a copy of <me> with the same form.

Implemented in Expr_FunctionDerivative, and Expr_NamedFunction.

◆ Derivative() [1/2]

virtual occ::handle< Expr_GeneralFunction > Expr_GeneralFunction::Derivative ( const occ::handle< Expr_NamedUnknown > & var ) const

pure virtual

Returns Derivative of <me> for variable .

Implemented in Expr_FunctionDerivative, and Expr_NamedFunction.

◆ Derivative() [2/2]

virtual occ::handle< Expr_GeneralFunction > Expr_GeneralFunction::Derivative	(	const occ::handle< Expr_NamedUnknown > &	var,
		const int	deg ) const

pure virtual

Returns Derivative of <me> for variable with degree <deg>.

Implemented in Expr_FunctionDerivative, and Expr_NamedFunction.

◆ Evaluate()

virtual double Expr_GeneralFunction::Evaluate	(	const NCollection_Array1< occ::handle< Expr_NamedUnknown > > &	vars,
		const NCollection_Array1< double > &	vals ) const