JOGL 2.3.2 · com.jogamp.opengl.math.Binary64

public final Class Binary64

extends Object

Class Inheritance

java.lang.Object
com.jogamp.opengl.math.Binary64

Functions for interrogating binary64 (double) values.

Field Summary

Modifier and Type	Field and Description
pack-priv static final long	BIAS
pack-priv static final long	MASK_EXPONENT
pack-priv static final long	MASK_SIGN
pack-priv static final long	MASK_SIGNIFICAND
pack-priv static final long	NEGATIVE_ZERO_BITS

Constructor Summary

Access	Constructor and Description
public	Binary64()

Method Summary

Modifier and Type	Method and Description
public static long	unpackGetExponentUnbiased(final double d) Extract and unbias the exponent of the given packed `double` value.
public static long	unpackGetSign(final double d) Return the sign of the given double value.
public static long	unpackGetSignificand(final double d) Return the significand of the given double value.

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

Field Detail

BIAS	back to summary
pack-priv static final long BIAS

MASK_EXPONENT	back to summary
pack-priv static final long MASK_EXPONENT

MASK_SIGN	back to summary
pack-priv static final long MASK_SIGN

MASK_SIGNIFICAND	back to summary
pack-priv static final long MASK_SIGNIFICAND

NEGATIVE_ZERO_BITS	back to summary
pack-priv static final long NEGATIVE_ZERO_BITS

Constructor Detail

Binary64	back to summary
public Binary64()

Method Detail

unpackGetExponentUnbiased back to summary

unpackGetExponentUnbiased	back to summary
public static long unpackGetExponentUnbiased(final double d) Extract and unbias the exponent of the given packed `double` value. The exponent is encoded biased as a number in the range `[0, 2047]`, with `0` indicating that the number is subnormal and `[1, 2046]` denoting the actual exponent plus `BIAS`. Infinite and `NaN` values always have a biased exponent of `2047`. This function will therefore return: `0 - BIAS = -1023` iff the input is a subnormal number. An integer in the range `[1 - BIAS, 2046 - BIAS] = [-1022, 1023]` iff the input is a normal number. `2047 - BIAS = 1024` iff the input is `POSITIVE_INFINITY`, `NEGATIVE_INFINITY`, or `NaN`. See Also `packSetExponentUnbiasedUnchecked(int)`

public static long unpackGetExponentUnbiased(final double d)

Extract and unbias the exponent of the given packed double value.

The exponent is encoded biased as a number in the range [0, 2047], with 0 indicating that the number is subnormal and [1, 2046] denoting the actual exponent plus BIAS. Infinite and NaN values always have a biased exponent of 2047.

This function will therefore return:

0 - BIAS = -1023 iff the input is a subnormal number.
An integer in the range [1 - BIAS, 2046 - BIAS] = [-1022, 1023] iff the input is a normal number.
2047 - BIAS = 1024 iff the input is POSITIVE_INFINITY, NEGATIVE_INFINITY, or NaN.

See Also: packSetExponentUnbiasedUnchecked(int)

unpackGetSign	back to summary
public static long unpackGetSign(final double d) Return the sign of the given double value.

unpackGetSignificand	back to summary
public static long unpackGetSignificand(final double d) Return the significand of the given double value.