XMLAbstractDoubleFloat.hpp
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: XMLAbstractDoubleFloat.hpp 605828 2007-12-20 08:05:47Z amassari $
*/
#if !defined(XERCESC_INCLUDE_GUARD_XML_ABSTRACT_DOUBLE_FLOAT_HPP)
#define XERCESC_INCLUDE_GUARD_XML_ABSTRACT_DOUBLE_FLOAT_HPP
#include <xercesc/util/XMLNumber.hpp>
#include <xercesc/util/PlatformUtils.hpp>
XERCES_CPP_NAMESPACE_BEGIN
/***
* 3.2.5.1 Lexical representation
*
* double values have a lexical representation consisting of a mantissa followed,
* optionally, by the character "E" or "e", followed by an exponent.
*
* The exponent must be an integer.
* The mantissa must be a decimal number.
* The representations for exponent and mantissa must follow the lexical rules
* for integer and decimal.
*
* If the "E" or "e" and the following exponent are omitted,
* an exponent value of 0 is assumed.
***/
/***
* 3.2.4.1 Lexical representation
*
* float values have a lexical representation consisting of a mantissa followed,
* optionally, by the character "E" or "e", followed by an exponent.
*
* The exponent must be an integer.
* The mantissa must be a decimal number.
* The representations for exponent and mantissa must follow the lexical rules
* for integer and decimal.
*
* If the "E" or "e" and the following exponent are omitted,
* an exponent value of 0 is assumed.
***/
class XMLUTIL_EXPORT XMLAbstractDoubleFloat : public XMLNumber
{
public:
enum LiteralType
{
NegINF,
PosINF,
NaN,
SpecialTypeNum,
Normal
};
virtual ~XMLAbstractDoubleFloat();
static XMLCh* getCanonicalRepresentation
(
const XMLCh* const rawData
, MemoryManager* const memMgr = XMLPlatformUtils::fgMemoryManager
);
virtual XMLCh* getRawData() const;
virtual const XMLCh* getFormattedString() const;
virtual int getSign() const;
MemoryManager* getMemoryManager() const;
inline bool isDataConverted() const;
inline bool isDataOverflowed() const;
inline double getValue() const;
inline LiteralType getType() const;
/***
*
* The decimal point delimiter for the schema double/float type is
* defined to be a period and is not locale-specific. So, it must
* be replaced with the local-specific delimiter before converting
* from string to double/float.
*
***/
static void normalizeDecimalPoint(char* const toNormal);
/***
* Support for Serialization/De-serialization
***/
DECL_XSERIALIZABLE(XMLAbstractDoubleFloat)
protected:
//
// To be used by derived class exclusively
//
XMLAbstractDoubleFloat(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
void init(const XMLCh* const strValue);
static int compareValues(const XMLAbstractDoubleFloat* const lValue
, const XMLAbstractDoubleFloat* const rValue
, MemoryManager* const manager);
//
// to be overridden by derived class
//
virtual void checkBoundary(char* const strValue) = 0;
void
convert(char* const strValue);
private:
//
// Unimplemented
//
// copy ctor
// assignment ctor
//
XMLAbstractDoubleFloat(const XMLAbstractDoubleFloat& toCopy);
XMLAbstractDoubleFloat& operator=(const XMLAbstractDoubleFloat& toAssign);
void normalizeZero(XMLCh* const);
inline bool isSpecialValue() const;
static int compareSpecial(const XMLAbstractDoubleFloat* const specialValue
, MemoryManager* const manager);
void formatString();
protected:
double fValue;
LiteralType fType;
bool fDataConverted;
bool fDataOverflowed;
private:
int fSign;
XMLCh* fRawData;
//
// If the original string is not lexcially the same as the five
// special value notations, and the value is converted to
// special value due underlying platform restriction on data
// representation, then this string is constructed and
// takes the form "original_string (special_value_notation)",
// otherwise it is empty.
//
XMLCh* fFormattedString;
MemoryManager* fMemoryManager;
};
inline bool XMLAbstractDoubleFloat::isSpecialValue() const
{
return (fType < SpecialTypeNum);
}
inline MemoryManager* XMLAbstractDoubleFloat::getMemoryManager() const
{
return fMemoryManager;
}
inline bool XMLAbstractDoubleFloat::isDataConverted() const
{
return fDataConverted;
}
inline bool XMLAbstractDoubleFloat::isDataOverflowed() const
{
return fDataOverflowed;
}
inline double XMLAbstractDoubleFloat::getValue() const
{
return fValue;
}
inline XMLAbstractDoubleFloat::LiteralType XMLAbstractDoubleFloat::getType() const
{
return fType;
}
XERCES_CPP_NAMESPACE_END
#endif
XMLAbstractDoubleFloat
Definition: XMLAbstractDoubleFloat.hpp:61
XMLPlatformUtils::fgMemoryManager
static MemoryManager * fgMemoryManager
The configurable memory manager.
Definition: PlatformUtils.hpp:121
XMLNumber.hpp
XMLAbstractDoubleFloat::NaN
Definition: XMLAbstractDoubleFloat.hpp:69
XMLAbstractDoubleFloat::isDataOverflowed
bool isDataOverflowed() const
Definition: XMLAbstractDoubleFloat.hpp:204
XMLAbstractDoubleFloat::getMemoryManager
MemoryManager * getMemoryManager() const
Definition: XMLAbstractDoubleFloat.hpp:194
XMLAbstractDoubleFloat::isDataConverted
bool isDataConverted() const
Definition: XMLAbstractDoubleFloat.hpp:199
XMLAbstractDoubleFloat::LiteralType
LiteralType
Definition: XMLAbstractDoubleFloat.hpp:65
PlatformUtils.hpp
MemoryManager
Configurable memory manager.
Definition: MemoryManager.hpp:39
XMLNumber::getRawData
virtual XMLCh * getRawData() const =0
Return string representation of the decimal value.
XERCES_CPP_NAMESPACE_BEGIN
#define XERCES_CPP_NAMESPACE_BEGIN
Definition: XercesDefs.hpp:112
XMLAbstractDoubleFloat::PosINF
Definition: XMLAbstractDoubleFloat.hpp:68
XMLPlatformUtils
Utilities that must be implemented in a platform-specific way.
Definition: PlatformUtils.hpp:68
XMLCh
wchar_t XMLCh
Definition: Xerces_autoconf_config.borland.hpp:92
XMLAbstractDoubleFloat::getType
LiteralType getType() const
Definition: XMLAbstractDoubleFloat.hpp:214
XMLNumber
Definition: XMLNumber.hpp:30
XMLAbstractDoubleFloat::getValue
double getValue() const
Definition: XMLAbstractDoubleFloat.hpp:209
XMLUTIL_EXPORT
#define XMLUTIL_EXPORT
Definition: XercesDefs.hpp:162
XERCES_CPP_NAMESPACE_END
#define XERCES_CPP_NAMESPACE_END
Definition: XercesDefs.hpp:113
XMLAbstractDoubleFloat::NegINF
Definition: XMLAbstractDoubleFloat.hpp:67
XMLNumber::getFormattedString
virtual const XMLCh * getFormattedString() const =0
Return the original and converted value of the original data.
XMLNumber::getSign
virtual int getSign() const =0
Returns the sign of this number.
XMLAbstractDoubleFloat::SpecialTypeNum
Definition: XMLAbstractDoubleFloat.hpp:70