FX::FXExpression Class Reference

#include <FXExpression.h>

Public Member Functions
	FXExpression ()
	FXExpression (const FXExpression &orig)
	FXExpression (const FXchar *expression, const FXchar *variables=NULL, FXExpressionError *error=NULL)
	FXExpression (const FXString &expression, const FXString &variables=FXString::null, FXExpressionError *error=NULL)
FXExpression &	operator= (const FXExpression &orig)
bool	empty () const
FXdouble	evaluate (const FXdouble *args=NULL)
FXExpressionError	parse (const FXchar *expression, const FXchar *variables=NULL)
FXExpressionError	parse (const FXString &expression, const FXString &variables=FXString::null)
	~FXExpression ()

Static Public Member Functions
static const FXchar *	getError (FXExpressionError err)

Detailed Description

Expression.

See also:

• Expression error codes.

Constructor & Destructor Documentation

FX::FXExpression::FXExpression

(

)

Construct empty expression object.

FX::FXExpression::FXExpression

(

const FXExpression &

orig

)

Copy expression object.

FX::FXExpression::FXExpression	(	const FXchar *	expression,
		const FXchar *	variables = NULL,
		FXExpressionError *	error = NULL
	)

Compile expression; if error is not NULL, error code is returned.

FX::FXExpression::FXExpression	(	const FXString &	expression,
		const FXString &	variables = FXString::null,
		FXExpressionError *	error = NULL
	)

Compile expression; if error is not NULL, error code is returned.

FX::FXExpression::~FXExpression

(

)

Delete.

Member Function Documentation

FXExpression& FX::FXExpression::operator=

(

const FXExpression &

orig

)

Assign another expression to this one.

bool FX::FXExpression::empty ( ) const

inline

See if expression is empty.

FXdouble FX::FXExpression::evaluate

(

const FXdouble *

args = NULL

)

Evaluate expression with given arguments, if any.

FXExpressionError FX::FXExpression::parse	(	const FXchar *	expression,
		const FXchar *	variables = NULL
	)

Parse expression, return error code if syntax error is found.

FXExpressionError FX::FXExpression::parse	(	const FXString &	expression,
		const FXString &	variables = FXString::null
	)

Parse expression, return error code if syntax error is found.

static const FXchar* FX::FXExpression::getError ( FXExpressionError  err )

inlinestatic

Returns error code for given error.