com.jogamp.opengl.math
Class Binary64

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

public final class Binary64
extends Object

Functions for interrogating binary64 (double) values.

Constructor Summary

Binary64()

Method Summary

static long	unpackGetExponentUnbiased(double d) Extract and unbias the exponent of the given packed double value.
static long	unpackGetSign(double d) Return the sign of the given double value.
static long	unpackGetSignificand(double d) Return the significand of the given double value.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Binary64

public Binary64()

Method Detail

unpackGetExponentUnbiased

public static long unpackGetExponentUnbiased(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)

unpackGetSignificand

public static long unpackGetSignificand(double d)

Return the significand of the given double value.

unpackGetSign

public static long unpackGetSign(double d)

Return the sign of the given double value.