Xalan-C++ API Documentation

The Xalan C++ XSLT Processor Version 1.10

DoubleSupport Class Reference

List of all members.

Static Public Member Functions

• static void initialize ()

  Perform static initialization.
  

• static void terminate ()

  Perform static shut down.
  

• static bool isNaN (double theNumber)

  Determine if target is not a number.
  

• static bool isPositiveInfinity (double theNumber)

  Determine if target is positive infinity.
  

• static bool isNegativeInfinity (double theNumber)

  Determine if target is negative infinity.
  

• static bool isPositiveZero (double theNumber)

  Determine if target is positive 0.
  

• static bool isNegativeZero (double theNumber)

  Determine if target is negative 0.
  

• static double getNaN ()

  Double value that represents "not a number".
  

• static double getPositiveInfinity ()

  Double value that represents positive infinity.
  

• static double getNegativeInfinity ()

  Double value that represents negative infinity.
  

• static bool equal (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static bool notEqual (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static bool lessThan (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static bool lessThanOrEqual (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static bool greaterThan (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static bool greaterThanOrEqual (double theLHS, double theRHS)

  Compare two double values, taking into account the fact that we must support IEEE 754.
  

• static double add (double theLHS, double theRHS)

  Add two double values, taking into account the fact that we must support IEEE 754.
  

• static double subtract (double theLHS, double theRHS)

  Subtract two double values, taking into account the fact that we must support IEEE 754.
  

• static double multiply (double theLHS, double theRHS)

  Multiply two double values, taking into account the fact that we must support IEEE 754.
  

• static double divide (double theLHS, double theRHS)

  Divide two double values, taking into account the fact that we must support IEEE 754.
  

• static double modulus (double theLHS, double theRHS)

  Determine the modulus two double values, taking into account the fact that we must support IEEE 754.
  

• static double negative (double theDouble)

  Determine the negative of a double value, taking into account the fact that we must support IEEE 754.
  

• static double abs (double theDouble)

  Return the absolute value of theDouble.
  

• static bool isValid (const XalanDOMString &theString)

  Determine whether or not a string contains a valid floating point number.
  

• static bool isValid (const XalanDOMChar *theString)

  Determine whether or not a string contains a valid floating point number.
  

• static double toDouble (const XalanDOMString &theString, MemoryManager &theManager)

  Convert a string to a double value.
  

• static double toDouble (const XalanDOMChar *theString, MemoryManager &theManager)

  Convert a string to a double value.
  

• static double round (double theValue)

  Round a number according to the XPath rules.
  

• static double ceiling (double theValue)

  Returns the ceiling of a number according to the XPath rules.
  

• static double floor (double theValue)

  Returns the floor of a number according to the XPath rules.
  

Classes

• struct addFunction
• struct divideFunction
• struct equalFunction
• struct greaterThanFunction
• struct greaterThanOrEqualFunction
• struct lessThanFunction
• struct lessThanOrEqualFunction
• struct modulusFunction
• struct multiplyFunction
• struct negativeFunction
• struct notEqualFunction
• union NumberUnion
• struct subtractFunction

---

Member Function Documentation

static double DoubleSupport::abs (  double  theDouble  )  [static]

Return the absolute value of theDouble. If theDouble is NaN, NaN is returned Parameters: theDouble  a number to fabs Returns: the result of the fabs

static double DoubleSupport::add (  double  theLHS, double  theRHS )  [static]

Add two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to add theRHS  a number to add Returns: the result of the addition

static double DoubleSupport::ceiling (  double  theValue  )  [static]

Returns the ceiling of a number according to the XPath rules. Parameters: theValue  The value to round. Returns: The result of the rounding

static double DoubleSupport::divide (  double  theLHS, double  theRHS )  [static]

Divide two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to divide theRHS  a number to divide Returns: the result of the division

static bool DoubleSupport::equal (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static double DoubleSupport::floor (  double  theValue  )  [static]

Returns the floor of a number according to the XPath rules. Parameters: theValue  The value to round. Returns: The result of the rounding

static double DoubleSupport::getNaN (   )  [static]

Double value that represents "not a number". Returns: "not a number" value

static double DoubleSupport::getNegativeInfinity (   )  [static]

Double value that represents negative infinity. Returns: negative infinity value

static double DoubleSupport::getPositiveInfinity (   )  [static]

Double value that represents positive infinity. Returns: positive infinity value

static bool DoubleSupport::greaterThan (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static bool DoubleSupport::greaterThanOrEqual (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static void DoubleSupport::initialize (   )  [static]

Perform static initialization. See class PlatformSupportInit.

static bool DoubleSupport::isNaN (  double  theNumber  )  [static]

Determine if target is not a number. Parameters: theNumber  target number Returns: true if target represents the "not a number" value

static bool DoubleSupport::isNegativeInfinity (  double  theNumber  )  [static]

Determine if target is negative infinity. Parameters: theNumber  target number Returns: true if target represents the value for negative infinity

static bool DoubleSupport::isNegativeZero (  double  theNumber  )  [static]

Determine if target is negative 0. Parameters: theNumber  target number Returns: true if target represents the value for negative 0

static bool DoubleSupport::isPositiveInfinity (  double  theNumber  )  [static]

Determine if target is positive infinity. Parameters: theNumber  target number Returns: true if target represents the value for positive infinity

static bool DoubleSupport::isPositiveZero (  double  theNumber  )  [static]

Determine if target is positive 0. Parameters: theNumber  target number Returns: true if target represents the value for positive 0.

static bool DoubleSupport::isValid (  const XalanDOMChar *  theString  )  [static]

Determine whether or not a string contains a valid floating point number. Parameters: theString  The string to check. Returns: true if the string is valid, false if not.

static bool DoubleSupport::isValid (  const XalanDOMString &  theString  )  [static]

Determine whether or not a string contains a valid floating point number. Parameters: theString  The string to check. Returns: true if the string is valid, false if not.

static bool DoubleSupport::lessThan (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static bool DoubleSupport::lessThanOrEqual (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static double DoubleSupport::modulus (  double  theLHS, double  theRHS )  [static]

Determine the modulus two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to divide theRHS  a number to divide Returns: the result of the modulus

static double DoubleSupport::multiply (  double  theLHS, double  theRHS )  [static]

Multiply two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to multiply theRHS  a number to multiply Returns: the result of the multiplication

static double DoubleSupport::negative (  double  theDouble  )  [static]

Determine the negative of a double value, taking into account the fact that we must support IEEE 754. Parameters: theDouble  a number to negate Returns: the result of the negation

static bool DoubleSupport::notEqual (  double  theLHS, double  theRHS )  [static]

Compare two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to compare theRHS  a number to compare Returns: the result of the compare

static double DoubleSupport::round (  double  theValue  )  [static]

Round a number according to the XPath rules. Parameters: theValue  The value to round. Returns: The result of the rounding

static double DoubleSupport::subtract (  double  theLHS, double  theRHS )  [static]

Subtract two double values, taking into account the fact that we must support IEEE 754. Parameters: theLHS  a number to subtract theRHS  a number to subtract Returns: the result of the subtraction

static void DoubleSupport::terminate (   )  [static]

Perform static shut down. See class PlatformSupportInit.

static double DoubleSupport::toDouble (  const XalanDOMChar *  theString, MemoryManager &  theManager )  [static]

Convert a string to a double value. Returns NaN if the string is not a valid floating point number. Parameters: theString  The string to convert. theManager  The MemoryManager instance to use. Returns: The result of the conversion

static double DoubleSupport::toDouble (  const XalanDOMString &  theString, MemoryManager &  theManager )  [static]

Convert a string to a double value. Returns NaN if the string is not a valid floating point number. Parameters: theString  The string to convert. theManager  The MemoryManager instance to use. Returns: The result of the conversion

---

The documentation for this class was generated from the following file:

• DoubleSupport.hpp

Interpreting class diagrams

Doxygen and GraphViz are used to generate this API documentation from the Xalan-C header files.

Xalan-C++ XSLT Processor Version 1.10 Copyright © 1999-2004 The Apache Software Foundation. All Rights Reserved.