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.
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/*
* $Id$
*/
#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
PlatformUtils.hpp
XMLNumber.hpp
XERCES_CPP_NAMESPACE_BEGIN
#define XERCES_CPP_NAMESPACE_BEGIN
Definition XercesDefs.hpp:112
XMLUTIL_EXPORT
#define XMLUTIL_EXPORT
Definition XercesDefs.hpp:162
XERCES_CPP_NAMESPACE_END
#define XERCES_CPP_NAMESPACE_END
Definition XercesDefs.hpp:113
XMLCh
char16_t XMLCh
Definition Xerces_autoconf_config.hpp:120
MemoryManager
Configurable memory manager.
Definition MemoryManager.hpp:40
XMLAbstractDoubleFloat
Definition XMLAbstractDoubleFloat.hpp:62
XMLAbstractDoubleFloat::getValue
double getValue() const
Definition XMLAbstractDoubleFloat.hpp:209
XMLAbstractDoubleFloat::convert
void convert(char *const strValue)
XMLAbstractDoubleFloat::checkBoundary
virtual void checkBoundary(char *const strValue)=0
XMLAbstractDoubleFloat::XMLAbstractDoubleFloat
XMLAbstractDoubleFloat(MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
XMLAbstractDoubleFloat::LiteralType
LiteralType
Definition XMLAbstractDoubleFloat.hpp:66
XMLAbstractDoubleFloat::SpecialTypeNum
@ SpecialTypeNum
Definition XMLAbstractDoubleFloat.hpp:70
XMLAbstractDoubleFloat::NegINF
@ NegINF
Definition XMLAbstractDoubleFloat.hpp:67
XMLAbstractDoubleFloat::NaN
@ NaN
Definition XMLAbstractDoubleFloat.hpp:69
XMLAbstractDoubleFloat::PosINF
@ PosINF
Definition XMLAbstractDoubleFloat.hpp:68
XMLAbstractDoubleFloat::getCanonicalRepresentation
static XMLCh * getCanonicalRepresentation(const XMLCh *const rawData, MemoryManager *const memMgr=XMLPlatformUtils::fgMemoryManager)
XMLAbstractDoubleFloat::fDataOverflowed
bool fDataOverflowed
Definition XMLAbstractDoubleFloat.hpp:170
XMLAbstractDoubleFloat::fType
LiteralType fType
Definition XMLAbstractDoubleFloat.hpp:168
XMLAbstractDoubleFloat::fValue
double fValue
Definition XMLAbstractDoubleFloat.hpp:167
XMLAbstractDoubleFloat::getRawData
virtual XMLCh * getRawData() const
Return string representation of the decimal value.
XMLAbstractDoubleFloat::isDataOverflowed
bool isDataOverflowed() const
Definition XMLAbstractDoubleFloat.hpp:204
XMLAbstractDoubleFloat::getFormattedString
virtual const XMLCh * getFormattedString() const
Return the original and converted value of the original data.
XMLAbstractDoubleFloat::fDataConverted
bool fDataConverted
Definition XMLAbstractDoubleFloat.hpp:169
XMLAbstractDoubleFloat::getType
LiteralType getType() const
Definition XMLAbstractDoubleFloat.hpp:214
XMLAbstractDoubleFloat::normalizeDecimalPoint
static void normalizeDecimalPoint(char *const toNormal)
XMLAbstractDoubleFloat::getMemoryManager
MemoryManager * getMemoryManager() const
Definition XMLAbstractDoubleFloat.hpp:194
XMLAbstractDoubleFloat::isDataConverted
bool isDataConverted() const
Definition XMLAbstractDoubleFloat.hpp:199
XMLAbstractDoubleFloat::getSign
virtual int getSign() const
Returns the sign of this number.
XMLAbstractDoubleFloat::compareValues
static int compareValues(const XMLAbstractDoubleFloat *const lValue, const XMLAbstractDoubleFloat *const rValue, MemoryManager *const manager)
Compares this object to the specified object.
XMLAbstractDoubleFloat::init
void init(const XMLCh *const strValue)
XMLAbstractDoubleFloat::~XMLAbstractDoubleFloat
virtual ~XMLAbstractDoubleFloat()
XMLNumber
Definition XMLNumber.hpp:31
XMLPlatformUtils::fgMemoryManager
static MemoryManager * fgMemoryManager
The configurable memory manager.
Definition PlatformUtils.hpp:121