158 lines
3.7 KiB
C++
158 lines
3.7 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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*
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* Keith Visco, kvisco@ziplink.net
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* -- original author.
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*
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* Larry Fitzpatrick, OpenText, lef@opentext.com
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* --
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*
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* Eric Du, duxy@leyou.com.cn
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* -- added fix for FreeBSD
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*
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* NaN/Infinity code copied from the JS-library with permission from
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* Netscape Communications Corporation: http://www.mozilla.org/js
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* http://lxr.mozilla.org/seamonkey/source/js/src/jsnum.h
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*
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*/
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#ifndef MITRE_PRIMITIVES_H
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#define MITRE_PRIMITIVES_H
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#include "TxObject.h"
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#include "baseutils.h"
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#include "TxString.h"
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/**
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* A wrapper for the primitive double type, and provides some simple
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* floating point related routines
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**/
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class Double : public TxObject {
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public:
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static const double NaN;
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static const double POSITIVE_INFINITY;
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static const double NEGATIVE_INFINITY;
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/**
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* Creates a new Double with it's value initialized from the given String.
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* The String will be converted to a double. If the String does not
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* represent an IEEE 754 double, the value will be initialized to NaN
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**/
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Double(const String& string);
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/**
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* Returns the value of this Double as a double
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**/
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double doubleValue();
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/**
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* Returns the value of this Double as an int
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**/
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int intValue();
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/**
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* Determines whether the given double represents positive or negative
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* inifinity
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**/
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static MBool isInfinite(double dbl);
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/**
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* Determines whether the given double is NaN
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**/
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static MBool isNaN(double dbl);
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/**
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* Determines whether the given double is negative
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**/
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static MBool isNeg(double dbl);
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/**
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* Converts the value of the given double to a String, and places
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* The result into the destination String.
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* @return the given dest string
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**/
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static String& toString(double value, String& dest);
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private:
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double value;
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/**
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* Converts the given String to a double, if the String value does not
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* represent a double, NaN will be returned
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**/
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static double toDouble(const String& str);
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};
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/**
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* A wrapper for the primitive int type, and provides some simple
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* integer related routines
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**/
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class Integer : public TxObject {
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public:
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/**
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* Creates a new Integer initialized to 0.
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**/
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Integer();
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/**
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* Creates a new Integer initialized to the given int value.
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**/
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Integer(PRInt32 integer);
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/**
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* Creates a new Integer based on the value of the given String
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**/
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Integer(const String& str);
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/**
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* Returns the int value of this Integer
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**/
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int intValue();
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/**
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* Converts the value of this Integer to a String
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**/
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String& toString(String& dest);
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/**
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* Converts the given int to a String
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**/
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static String& toString(int value, String& dest);
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private:
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PRInt32 value;
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/**
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* converts the given String to an int
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**/
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static int intValue(const String& src);
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}; //-- Integer
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#endif
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