зеркало из https://github.com/mozilla/pjs.git
98 строки
2.6 KiB
C++
98 строки
2.6 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is TransforMiiX XSLT processor.
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*
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* The Initial Developer of the Original Code is The MITRE Corporation.
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* Portions created by MITRE are Copyright (C) 1999 The MITRE Corporation.
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*
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* Portions created by Keith Visco as a Non MITRE employee,
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* (C) 1999 Keith Visco. All Rights Reserved.
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*
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* Contributor(s):
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* Keith Visco, kvisco@ziplink.net
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* -- original author.
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*
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* $Id: NumberResult.cpp,v 1.6 2001-01-22 09:36:18 kvisco%ziplink.net Exp $
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*/
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/**
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* NumberResult
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* Represents the a number as the result of evaluating an Expr
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* @author <A HREF="mailto:kvisco@ziplink.net">Keith Visco</A>
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* @version $Revision: 1.6 $ $Date: 2001-01-22 09:36:18 $
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**/
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#include "ExprResult.h"
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/**
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* Default Constructor
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**/
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NumberResult::NumberResult() {
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value = 0.0;
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} //-- NumberResult
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NumberResult::NumberResult(const NumberResult& nbrResult) {
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this->value = nbrResult.getValue();
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} //-- NumberResult
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/**
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* Creates a new NumberResult with the value of the given double parameter
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* @param dbl the double to use for initialization of this NumberResult's value
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**/
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NumberResult::NumberResult(double dbl) {
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this->value = dbl;
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} //-- NumberResult
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/**
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* Returns the value of this NumberResult
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* @return the value of this NumberResult
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**/
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double NumberResult::getValue() const {
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return this->value;
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} //-- getValue
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/**
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*
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**/
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MBool NumberResult::isNaN() const {
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return Double::isNaN(value);
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} //-- isNaN
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/*
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* Virtual Methods from ExprResult
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*/
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short NumberResult::getResultType() {
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return ExprResult::NUMBER;
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} //-- getResultType
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void NumberResult::stringValue(String& str) {
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int intVal = (int)value;
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if (intVal == value) { //-- no fraction
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Integer::toString(intVal, str);
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}
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else Double::toString(value, str);
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} //-- stringValue
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MBool NumberResult::booleanValue() {
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// OG+
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// As per the XPath spec, the boolean value of a number is true if and only if
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// it is neither positive 0 nor negative 0 nor NaN
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return (MBool)(this->value != 0.0 && this->value != -0.0 && ! isNaN());
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// OG-
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} //-- booleanValue
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double NumberResult::numberValue() {
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return this->value;
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} //-- numberValue
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