cDynamicExpression::Elem Class Reference

#include <cdynamicexpression.h>

Description

One element in a (reverse Polish) expression.

Public Member Functions
void	operator= (const Elem &other)
void	operator= (bool b)
void	operator= (intpar_t i)
void	operator= (double d)
void	setUnit (const char *s)
void	operator= (const char *s)
void	operator= (cXMLElement *x)
void	operator= (cNedMathFunction *f)
void	set (cNedFunction *f, int argc)
void	operator= (Functor *f)
void	operator= (OpType op)
void	operator= (cExpression *expr)
Type	getType () const
bool	isNumericConstant () const
void	negate ()
bool	getBoolConstant () const
intpar_t	getIntConstant () const
double	getDoubleConstant () const
const char *	getUnit () const
const char *	getStringConstant () const
cXMLElement *	getXMLElement () const
cNedMathFunction *	getMathFunction () const
cNedFunction *	getNedFunction () const
int	getNedFunctionNumArgs () const
Functor *	getFunctor () const
OpType	getOperation () const
cExpression *	getConstSubexpression () const
int	compare (const Elem &other) const
std::string	str () const

Static Public Member Functions
static const char *	getOpName (OpType op)

Member Function Documentation

operator=() [1/10]

void operator=

(

const Elem &

other

)

Assignment operator – we need to copy Elem at a hundred places

operator=() [2/10]

void operator=

(

bool

b

)

Effect during evaluation of the expression: pushes the given boolean constant to the evaluation stack.

operator=() [3/10]

void operator=

(

intpar_t

i

)

Effect during evaluation of the expression: pushes the given number (which is converted to double) to the evaluation stack.

operator=() [4/10]

void operator=

(

double

d

)

Effect during evaluation of the expression: pushes the given number to the evaluation stack.

setUnit()

void setUnit

(

const char *

s

)

Sets the unit of an Elem previously set to a double or integer value. The type must already be DBL or INT, or an error gets thrown.

operator=() [5/10]

void operator=

(

const char *

s

)

Effect during evaluation of the expression: pushes the given string to the evaluation stack.

operator=() [6/10]

void operator=

(

cXMLElement *

x

)

Effect during evaluation of the expression: pushes the given cXMLElement pointer to the evaluation stack.

operator=() [7/10]

void operator=

(

cNedMathFunction *

f

)

Effect during evaluation of the expression: Call a function taking 0..4 doubles and returning a double.

set()

void set	(	cNedFunction *	f,
		int	argc
	)

Effect during evaluation of the expression: call a function that function takes an array of cNedValues and returns a cNedValue.

operator=() [8/10]

void operator=

(

Functor *

f

)

Function object, with an interface not unlike cNedFunction. This object will be deleted by expression's destructor.

operator=() [9/10]

void operator=

(

OpType

op

)

Unary, binary or tertiary (?:) operations.

operator=() [10/10]

void operator=

(

cExpression *

expr

)

Constant subexpression.

getType()

Type getType ( ) const

inline

Returns the element type

isNumericConstant()

bool isNumericConstant ( ) const

inline

Returns true if the element is a numeric constant (type INT or DBL).

negate()

void negate

(

)

Negates the element. It must be a numeric constant (type INT or DBL).

getBoolConstant()

bool getBoolConstant ( ) const

inline

Returns the value if the element is a boolean constant (type BOOL).

getIntConstant()

intpar_t getIntConstant ( ) const

inline

Returns the value if the element is an integer constant (type INT).

getDoubleConstant()

double getDoubleConstant ( ) const

inline

Returns the value if the element is a double constant (type DBL).

getUnit()

const char* getUnit ( ) const

inline

Returns the unit if the element is a numeric constant (type INT or DBL).

getStringConstant()

const char* getStringConstant ( ) const

inline

Returns the value if the element is a string constant (type STR).

getXMLElement()

cXMLElement* getXMLElement ( ) const

inline

Returns the value if the element is an XML element (type XML).

getMathFunction()

cNedMathFunction* getMathFunction ( ) const

inline

Returns the function pointer if the element is a math function (type MATHFUNC).

getNedFunction()

cNedFunction* getNedFunction ( ) const

inline

Returns the function pointer if the element is a NED function (type NEDFUNC).

getNedFunctionNumArgs()

int getNedFunctionNumArgs ( ) const

inline

Returns the argument count if the element is a NED function (type NEDFUNC).

getFunctor()

Functor* getFunctor ( ) const

inline

Returns the functor pointer if the element is a functor (type FUNCTOR).

getOperation()

OpType getOperation ( ) const

inline

Returns the operation if the element is an operation (type OP).

getConstSubexpression()

cExpression* getConstSubexpression ( ) const

inline

Returns the subexpression if the element is a NED function (type CONSTSUBEXPR).

compare()

int compare

(

const Elem &

other

)

const

For cDynamicExpression::compare()

getOpName()

static const char* getOpName ( OpType  op )

static

Returns the string representation of the given operator.

str()

std::string str

(

)

const

Returns the string representation of this element.

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

• cdynamicexpression.h