sun.misc
Class DoubleConsts

java.lang.Object
  sun.misc.DoubleConsts

public class DoubleConsts
extends Object

This class contains additional constants documenting limits of the double type.

Field Summary

static int	EXP_BIAS Bias used in representing a double exponent.
static long	EXP_BIT_MASK Bit mask to isolate the exponent field of a double.
static int	MAX_EXPONENT Maximum exponent a finite double number may have.
static double	MAX_VALUE
static int	MIN_EXPONENT Minimum exponent a normalized double number may have.
static double	MIN_NORMAL A constant holding the smallest positive normal value of type double, 2-1022.
static int	MIN_SUB_EXPONENT The exponent the smallest positive double subnormal value would have if it could be normalized.
static double	MIN_VALUE
static double	NaN
static double	NEGATIVE_INFINITY
static double	POSITIVE_INFINITY
static long	SIGN_BIT_MASK Bit mask to isolate the sign bit of a double.
static long	SIGNIF_BIT_MASK Bit mask to isolate the significand field of a double.
static int	SIGNIFICAND_WIDTH The number of logical bits in the significand of a double number, including the implicit bit.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

POSITIVE_INFINITY

public static final double POSITIVE_INFINITY

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Constant Field Values

NEGATIVE_INFINITY

public static final double NEGATIVE_INFINITY

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Constant Field Values

NaN

public static final double NaN

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Constant Field Values

MAX_VALUE

public static final double MAX_VALUE

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Constant Field Values

MIN_VALUE

public static final double MIN_VALUE

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Constant Field Values

MIN_NORMAL

public static final double MIN_NORMAL

A constant holding the smallest positive normal value of type double, 2^-1022. It is equal to the value returned by Double.longBitsToDouble(0x0010000000000000L).

Since:

1.5

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Constant Field Values

SIGNIFICAND_WIDTH

public static final int SIGNIFICAND_WIDTH

The number of logical bits in the significand of a double number, including the implicit bit.

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Constant Field Values

MAX_EXPONENT

public static final int MAX_EXPONENT

Maximum exponent a finite double number may have. It is equal to the value returned by Math.ilogb(Double.MAX_VALUE).

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Constant Field Values

MIN_EXPONENT

public static final int MIN_EXPONENT

Minimum exponent a normalized double number may have. It is equal to the value returned by Math.ilogb(Double.MIN_NORMAL).

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Constant Field Values

MIN_SUB_EXPONENT

public static final int MIN_SUB_EXPONENT

The exponent the smallest positive double subnormal value would have if it could be normalized. It is equal to the value returned by FpUtils.ilogb(Double.MIN_VALUE).

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Constant Field Values

EXP_BIAS

public static final int EXP_BIAS

Bias used in representing a double exponent.

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Constant Field Values

SIGN_BIT_MASK

public static final long SIGN_BIT_MASK

Bit mask to isolate the sign bit of a double.

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Constant Field Values

EXP_BIT_MASK

public static final long EXP_BIT_MASK

Bit mask to isolate the exponent field of a double.

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Constant Field Values

SIGNIF_BIT_MASK

public static final long SIGNIF_BIT_MASK

Bit mask to isolate the significand field of a double.

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Constant Field Values