TypedExpression< double > Class Template Reference

#include <Expression.h>

Inherits Expression.

Inherited by RandFunction::DoubleRandFunction.

List of all members.

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Detailed Description

template<>
class TypedExpression< double >

An expression that evaluates to a 64 bit floating-point value.

Expressions returning a double should derive from this class and implement the evalImpl(EvalAs<double>) method.

Public Member Functions
	TypedExpression ()
virtual double	evalImpl (EvalAs< double >, const EvalContext &ctxt)=0 throw ( EvalException )
	Evaluate as a double.
bool	isImpl (EvalAs< double >) const
	Returns true iff the expression can be evaluated as a double.
EString	evalImpl (EvalAs< EString >, const EvalContext &ctxt) throw ( EvalException )
	Evaluate as a string.
bool	isImpl (EvalAs< EString >) const
	Returns true iff the expression can be evaluated as an EString.

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Member Function Documentation

EString TypedExpression< double >::evalImpl (  EvalAs< EString >  , const EvalContext &  ctxt )  throw ( EvalException ) [virtual]

Evaluate as a string. Reimplemented from Expression.

virtual double TypedExpression< double >::evalImpl (  EvalAs< double >  , const EvalContext &  ctxt )  throw ( EvalException ) [pure virtual]

Evaluate as a double. Reimplemented from Expression. Implemented in RandFunction::DoubleRandFunction.

bool TypedExpression< double >::isImpl (  EvalAs< EString >   )  const [virtual]

Returns true iff the expression can be evaluated as an EString. Reimplemented from Expression.

bool TypedExpression< double >::isImpl (  EvalAs< double >   )  const [virtual]

Returns true iff the expression can be evaluated as a double. Reimplemented from Expression.

TypedExpression< double >::TypedExpression (   )

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

• Expression.h

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