public class SuccessorUtil extends Object
BytesUtil#successor(byte[]), which computes the successor of a variable
length unsigned byte[].
Modifier and Type  Field and Description 

static double 
DNEG_MAX
Largest negative double.

static double 
DNEG_MIN
Smallest nonzero negative value.

static double 
DNEG_ONE
Negative one (1d).

static double 
DNEG_ZERO
Negative zero (0d).

static double 
DPOS_MAX
Largest positive double.

static double 
DPOS_MIN
Smallest nonzero positive value.

static double 
DPOS_ONE
Positive one (1d).

static double 
DPOS_ZERO
Positive zero (+0d).

static float 
FNEG_MAX
Largest negative float.

static float 
FNEG_MIN
Smallest nonzero negative value.

static float 
FNEG_ONE
Negative one (1f).

static float 
FNEG_ZERO
Negative zero (0f).

static float 
FPOS_MAX
Largest positive float.

static float 
FPOS_MIN
Smallest nonzero positive value.

static float 
FPOS_ONE
Positive one (1f).

static float 
FPOS_ZERO
Positive zero (+0f).

Constructor and Description 

SuccessorUtil() 
Modifier and Type  Method and Description 

static byte 
successor(byte n)
Computes the successor of a
byte value. 
static byte[] 
successor(byte[] b)
Modifies a byte[] as a sideeffect so that it represents its successor
when interpreted as a fixed length bit string.

static byte[] 
successor(byte[] b,
int off,
int len)
Modifies a byte[] as a sideeffect so that it represents its successor
when interpreted as a fixed length bit string.

static char 
successor(char n)
Computes the successor of a
char value. 
static double 
successor(double d)
Computes the successor of a
double value. 
static float 
successor(float f)
Computes the successor of a
float value. 
static int 
successor(int n)
Computes the successor of an
int value. 
static long 
successor(long n)
Computes the successor of a
long value. 
static short 
successor(short n)
Computes the successor of a
short value. 
static String 
successor(String s)
The successor of a string value is formed by appending a
nul . 
public static final float FPOS_ZERO
Note: +0f and 0f will compare as _equal_ in the language. This means that you can not write tests that directly distinguish positive and negative zero using >, <, or ==.
public static final float FNEG_ZERO
Note: +0f and 0f will compare as _equal_ in the language. This means that you can not write tests that directly distinguish positive and negative zero using >, <, or ==.
public static final float FPOS_MIN
public static final float FNEG_MIN
public static final float FPOS_ONE
public static final float FNEG_ONE
public static final float FPOS_MAX
public static final float FNEG_MAX
public static final double DPOS_ZERO
Note: +0d and 0d will compare as _equal_ in the language. This means that you can not write tests that directly distinguish positive and negative zero using >, <, or ==.
public static final double DNEG_ZERO
Note: +0d and 0d will compare as _equal_ in the language. This means that you can not write tests that directly distinguish positive and negative zero using >, <, or ==.
public static final double DPOS_MIN
public static final double DNEG_MIN
public static final double DPOS_ONE
public static final double DNEG_ONE
public static final double DPOS_MAX
public static final double DNEG_MAX
public static byte successor(byte n) throws NoSuccessorException
byte
value.n
 A valueNoSuccessorException
 if there is no successor for that value.public static char successor(char n) throws NoSuccessorException
char
value.n
 A valueNoSuccessorException
 if there is no successor for that value.public static short successor(short n) throws NoSuccessorException
short
value.n
 A valueNoSuccessorException
 if there is no successor for that value.public static int successor(int n) throws NoSuccessorException
int
value.n
 A valueNoSuccessorException
 if there is no successor for that value.public static long successor(long n) throws NoSuccessorException
long
value.n
 A valueNoSuccessorException
 if there is no successor for that value.public static float successor(float f) throws NoSuccessorException
Computes the successor of a float
value.
The IEEE floating point standard provides a means for computing the next
larger or smaller floating point value using a bit manipulation trick.
See
Comparing floating point numbers by Bruce Dawson. The Java
Float
and Double
classes provide the static methods
required to convert a float or double into its IEEE 754 floating point
bit layout, which can be treated as an int (for floats) or a long (for
doubles). By testing for the sign, you can just add (or subtract) one (1)
to get the bit pattern of the successor (see the above referenced
article). Special exceptions must be made for NaNs, negative infinity and
positive infinity.
f
 The float value.float
.NoSuccessorException
 if there is no next value in the value space.public static double successor(double d) throws NoSuccessorException
Computes the successor of a double
value.
The IEEE floating point standard provides a means for computing the next
larger or smaller floating point value using a bit manipulation trick.
See
Comparing floating point numbers by Bruce Dawson. The Java
Float
and Double
classes provide the static methods
required to convert a float or double into its IEEE 754 floating point
bit layout, which can be treated as an int (for floats) or a long (for
doubles). By testing for the sign, you can just add (or subtract) one (1)
to get the bit pattern of the successor (see the above referenced
article). Special exceptions must be made for NaNs, negative infinity and
positive infinity.
d
 The double value.double
.NoSuccessorException
 if there is no next value in the value space.public static String successor(String s)
nul
.
The successor of a null
string reference is an empty
string. The successor of a string value is defined unless the string is
too long.s
 The string reference or null
.null
public static byte[] successor(byte[] b)
b
 NoSuccessorException
 If all bytes overflow.NoSuccessorException
 If the byte[] has zero length.public static byte[] successor(byte[] b, int off, int len)
b
 The byte[].off
 The offset of the start of the bitstring in the byte[].len
 The #of bytes in the bit string within the byte[].NoSuccessorException
 If all bytes overflow.NoSuccessorException
 If the byte[] has zero length.Copyright © 2006–2019 SYSTAP, LLC DBA Blazegraph. All rights reserved.