CondExpression Class Reference

Represents base class of all conditional expressions. More...

#include <condexpression.h>

Inheritance diagram for CondExpression:

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Collaboration diagram for CondExpression:

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List of all members.

Public Member Functions
	CondExpression (EXP_TYPE _type)
	Constructor.
virtual	~CondExpression ()
virtual bool	evalCond (OutputStream &eos, Environment *env, unsigned modus)=0
	Evaluates the corresponding CondExpression.

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Detailed Description

Represents base class of all conditional expressions.

Represents base class of all conditional expressions.

Author:

Michael Schmidt

Gunnar Jehl

Version:

2.1

License:

Software License Agreement (BSD License)

Definition at line 49 of file condexpression.h.

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Constructor & Destructor Documentation

CondExpression::CondExpression

(

EXP_TYPE

_type

)

Constructor.

Constructor - creating object for an EXP_TYPE.

Parameters:

[in]

_type

EXP_TYPE.

Definition at line 37 of file condexpression.cpp.

CondExpression::~CondExpression

(

)

[virtual]

Destructor.

Definition at line 40 of file condexpression.cpp.

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Member Function Documentation

bool CondExpression::evalCond	(	OutputStream &	eos,
		Environment *	env,
		unsigned	modus
	)			[pure virtual]

Evaluates the corresponding CondExpression.

Evaluates the corresponding CondExpression.

Parameters:

[in]	eos	Pointer to a OutputStream object.
[in]	env	Pointer to a Environment object.
[in]	modus	Evaluation modus.

Return values:

bool

true if the corresponding CondExpression is true, false otherwise.

Exceptions:

RuntimeException

If illegal evaluation mode (argument: unsigned modus).

Implemented in AndCondExpression, CondOperandExpression, EmptyCondExpression, ExistsCondExpression, FalseCondExpression, NotCondExpression, OrCondExpression, TrueCondExpression, and VarstepCondExpression.

Referenced by IfExpression::eval(), OrCondExpression::evalCond(), NotCondExpression::evalCond(), and AndCondExpression::evalCond().