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java.lang.Objectorg.openjena.atlas.lib.BitsInt
public final class BitsInt
Utilities for manipulating a bit pattern which held in a 32 bit int
Method Summary | |
---|---|
static int |
access(int bits,
int start,
int finish)
Get the bits from start (inclusive) to finish (exclusive), leaving them aligned in the int. |
static int |
clear(int bits,
int start,
int finish)
|
static boolean |
isSet(int bits,
int bitIndex)
|
static int |
mask(int start,
int finish)
Create a mask that has ones between bit positions start (inc) and finish (exc) |
static int |
maskZero(int start,
int finish)
Create a mask that has zeros between bit positions start (inc) and finish (exc) and ones elsewhere |
static int |
pack(int bits,
int value,
int start,
int finish)
Place the value into the bit pattern between start and finish; leaves other bits aint. |
static int |
set(int bits,
int bitIndex)
Set the bits specificied. |
static int |
set(int bits,
int start,
int finish)
Set the bits from string (inc) to finish (exc) to one |
static boolean |
test(int bits,
boolean isSet,
int bitIndex)
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static boolean |
test(int bits,
int value,
int start,
int finish)
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static int |
unpack(int bits,
int start,
int finish)
Extract the value packed into bits start (inclusive) and finish (exclusive), the value is returned the low part of the returned int. |
static int |
unpack(String str,
int startChar,
int finishChar)
Get bits from a hex string. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static final int unpack(int bits, int start, int finish)
public static final int pack(int bits, int value, int start, int finish)
public static final int unpack(String str, int startChar, int finishChar)
str
- startChar
- Index of first character (counted from the left, string style).finishChar
- Index after the last character (counted from the left, string style).
public static final int set(int bits, int bitIndex)
bits
- PatternbitIndex
-
public static final int set(int bits, int start, int finish)
bits
- Patternstart
- start (inclusive)finish
- finish (exclusive)
public static final boolean test(int bits, boolean isSet, int bitIndex)
public static final boolean isSet(int bits, int bitIndex)
public static final boolean test(int bits, int value, int start, int finish)
public static final int access(int bits, int start, int finish)
public static final int clear(int bits, int start, int finish)
public static final int mask(int start, int finish)
public static final int maskZero(int start, int finish)
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