608050c81c
b=96143 r=Pike sr=scc git-svn-id: svn://10.0.0.236/trunk@107295 18797224-902f-48f8-a5cc-f745e15eee43
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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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 "baseutils.h"
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#include "TxString.h"
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/*
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* Utility class for doubles
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*/
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class Double {
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public:
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/*
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* Usefull constants
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*/
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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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* 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 aDbl);
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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 aDbl);
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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 aDbl);
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/*
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* Converts the value of the given double to a String, and appends
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* the result to the destination String.
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* @return the given dest string
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*/
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static String& toString(double aValue, String& aDest);
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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& aStr);
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};
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#endif
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