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Expr


Expr_NamedUnknown Class Reference

This class describes any variable of an expression.
Assignment is treated directly in this class.
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#include <Expr_NamedUnknown.hxx>

Inheritance diagram for Expr_NamedUnknown:

Inheritance graph
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Public Member Functions

Standard_EXPORT Expr_NamedUnknown (const TCollection_AsciiString &name)
Standard_Boolean IsAssigned () const
 Tests if an expression is assigned to <me>.
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Standard_EXPORT const Handle_Expr_GeneralExpression & AssignedExpression () const
 If exists, returns the assigned expression.
An exception is raised if the expression does not exist.
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Standard_EXPORT void Assign (const Handle(Expr_GeneralExpression)&exp)
 Assigns <me> to <exp> expression.
Raises exception if <exp> refers to <me>.
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void Deassign ()
 Supresses the assigned expression
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Standard_EXPORT Standard_Integer NbSubExpressions () const
 Returns the number of sub-expressions contained
in <me> ( >= 0)
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Standard_EXPORT const Handle_Expr_GeneralExpression & SubExpression (const Standard_Integer I) const
 Returns the -th sub-expression of <me>
raises OutOfRange if > NbSubExpressions(me)
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Standard_EXPORT Handle_Expr_GeneralExpression Simplified () const
 Returns a GeneralExpression after replacement of
NamedUnknowns by an associated expression and after
values computation.
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Standard_EXPORT Handle_Expr_GeneralExpression ShallowSimplified () const
 Returns a GeneralExpression after a simplification
of the arguments of <me>.
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Standard_EXPORT Handle_Expr_GeneralExpression Copy () const
 Returns a copy of <me> having the same unknowns and functions.
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Standard_EXPORT Standard_Boolean ContainsUnknowns () const
 Tests if <me> contains NamedUnknown.
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Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)&exp) const
 Tests if <exp> is contained in <me>.
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Standard_EXPORT Standard_Boolean IsLinear () const
 Tests if <me> is linear on every NamedUnknown it
contains.
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Standard_EXPORT Handle_Expr_GeneralExpression Derivative (const Handle(Expr_NamedUnknown)&X) const
 Returns the derivative on <x> unknown of <me>
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Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)&var, const Handle(Expr_GeneralExpression)&with)
 Replaces all occurences of with <with> in <me>
Raises InvalidOperand if <with> contains <me>.
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Standard_EXPORT Standard_Real Evaluate (const Expr_Array1OfNamedUnknown &vars, const TColStd_Array1OfReal &vals) 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.
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Standard_EXPORT const Handle (Standard_Type)&DynamicType() const

Private Attributes

Handle_Expr_GeneralExpression myExpression

Constructor & Destructor Documentation

Standard_EXPORT Expr_NamedUnknown::Expr_NamedUnknown const TCollection_AsciiString name  ) 
 


Member Function Documentation

Standard_EXPORT void Expr_NamedUnknown::Assign const Handle(Expr_GeneralExpression)&  exp  ) 
 

Standard_EXPORT const Handle_Expr_GeneralExpression& Expr_NamedUnknown::AssignedExpression  )  const
 

Standard_EXPORT Standard_Boolean Expr_NamedUnknown::Contains const Handle(Expr_GeneralExpression)&  exp  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Boolean Expr_NamedUnknown::ContainsUnknowns  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedUnknown::Copy  )  const [virtual]
 

Implements Expr_GeneralExpression.

void Expr_NamedUnknown::Deassign  )  [inline]
 

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedUnknown::Derivative const Handle(Expr_NamedUnknown)&  X  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Real Expr_NamedUnknown::Evaluate const Expr_Array1OfNamedUnknown vars,
const TColStd_Array1OfReal vals
const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT const Expr_NamedUnknown::Handle Standard_Type   )  const
 

Reimplemented from Expr_NamedExpression.

Standard_Boolean Expr_NamedUnknown::IsAssigned  )  const [inline]
 

Standard_EXPORT Standard_Boolean Expr_NamedUnknown::IsLinear  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Integer Expr_NamedUnknown::NbSubExpressions  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT void Expr_NamedUnknown::Replace const Handle(Expr_NamedUnknown)&  var,
const Handle(Expr_GeneralExpression)&  with
[virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedUnknown::ShallowSimplified  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedUnknown::Simplified  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT const Handle_Expr_GeneralExpression& Expr_NamedUnknown::SubExpression const Standard_Integer  I  )  const [virtual]
 

Implements Expr_GeneralExpression.


Field Documentation

Handle_Expr_GeneralExpression Expr_NamedUnknown::myExpression [private]
 


The documentation for this class was generated from the following files:
Generated on Mon Aug 25 13:12:29 2008 for OpenCASCADE by  doxygen 1.4.1