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org.apache.poi.ss.util

pack-priv final Class IEEEDouble

Class Inheritance

extends Object

java.lang.Object
org.apache.poi.ss.util.IEEEDouble

For working with the internals of IEEE 754-2008 'binary64' (double precision) floating point numbers

Field Summary

Modifier and Type	Field and Description
public static final int	BIASED_EXPONENT_SPECIAL_VALUE The value the exponent field gets for all NaN and Infinity values
public static final int	EXPONENT_BIAS
private static final long	EXPONENT_MASK
private static final int	EXPONENT_SHIFT
public static final long	FRAC_ASSUMED_HIGH_BIT
public static final long	FRAC_MASK

Constructor Summary

Access	Constructor and Description
pack-priv	IEEEDouble()

Method Summary

Modifier and Type	Method and Description
public static int	Returns: the top 12 bits (sign and biased exponent value) getBiasedExponent(long the 64 bit binary representation of the double value rawBits)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

BIASED_EXPONENT_SPECIAL_VALUE	back to summary
public static final int BIASED_EXPONENT_SPECIAL_VALUE The value the exponent field gets for all NaN and Infinity values

EXPONENT_BIAS	back to summary
public static final int EXPONENT_BIAS

EXPONENT_MASK	back to summary
private static final long EXPONENT_MASK

EXPONENT_SHIFT	back to summary
private static final int EXPONENT_SHIFT

FRAC_ASSUMED_HIGH_BIT	back to summary
public static final long FRAC_ASSUMED_HIGH_BIT

FRAC_MASK	back to summary
public static final long FRAC_MASK

Constructor Detail

IEEEDouble	back to summary
pack-priv IEEEDouble()

Method Detail

getBiasedExponent	back to summary
public static int getBiasedExponent(long rawBits) Parameters rawBits:long the 64 bit binary representation of the double value Returns:int the top 12 bits (sign and biased exponent value)