SignumNode Class Reference

A signum function in a syntax tree. More...

#include <signum.h>

Inheritance diagram for SignumNode:

Collaboration diagram for SignumNode:

Public Member Functions
	SignumNode (ExpressionNode *expression, char *text, char *sys)
Number *	Evaluate ()
Public Member Functions inherited from FunctionNode
	FunctionNode (ExpressionNode *expression, char *text, char *sys)
	~FunctionNode ()
int	GetPrecedence ()
char *	GetText ()
virtual SyntaxNode *	GetNext ()
virtual void	Attach (SyntaxNode *node)
virtual void	Detach (SyntaxNode *node)
virtual void	Replace (SyntaxNode *n, SyntaxNode *x)
Public Member Functions inherited from ExpressionNode
	ExpressionNode ()
	ExpressionNode (Number *value)
virtual	~ExpressionNode ()
NodeType	GetNodeType ()
virtual bool	IsSilent ()
char *	GetTextCode ()
char *	Execute ()
Public Member Functions inherited from SyntaxNode
	SyntaxNode ()
virtual	~SyntaxNode ()
void	SetFirstNode ()
bool	GetFirstNode () const
SyntaxNode *	GetParent () const
void	SetParent (SyntaxNode *node)
virtual ReductionType	GetReductionType ()
virtual void	ResetIterator ()

Static Public Member Functions
static FunctionNode *	Create (ExpressionNode *expression, char *text, char *sys)

Additional Inherited Members
Protected Member Functions inherited from FunctionNode
virtual char *	GetNodeText ()
Protected Attributes inherited from FunctionNode
ExpressionNode *	expression
char *	name
char *	sysname
Protected Attributes inherited from ExpressionNode
Number *	result
Protected Attributes inherited from SyntaxNode
CharBuffer *	output
SyntaxNode *	parent
SyntaxNode *	iterator
bool	leftBottom

Detailed Description

A signum function in a syntax tree.

Extracts the sign of a real number. See Number for implementation.

More info on the signum function is available at Wikipedia: https://wikipedia.org/wiki/Sign_function

Definition at line 44 of file signum.h.

Constructor & Destructor Documentation

SignumNode()

SignumNode::SignumNode ( ExpressionNode *  expression, char *  text, char *  sys  )

explicit

Definition at line 32 of file signum.cpp.

References FunctionNode::FunctionNode().

Referenced by Create().

                                                                        :
    FunctionNode(expression, text, sys)
{
}

Here is the call graph for this function:

Here is the caller graph for this function:

Member Function Documentation

Create()

FunctionNode * SignumNode::Create ( ExpressionNode *  expression, char *  text, char *  sys  )

static

Definition at line 37 of file signum.cpp.

References SignumNode().

{
    return new SignumNode(expression, text, sys);
}

Here is the call graph for this function:

Evaluate()

Number * SignumNode::Evaluate ( )

virtual

Implements ExpressionNode.

Definition at line 42 of file signum.cpp.

References ExpressionNode::Evaluate(), FunctionNode::expression, ExpressionNode::result, and Number::Signum().

{
    result = expression->Evaluate()->Signum();
    return result;
}

Here is the call graph for this function:

---

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

• src/main/function/signum.h
• src/main/function/signum.cpp