Package com.graphhopper.util

Class BitUtil

java.lang.Object

com.graphhopper.util.BitUtil

public class BitUtil
extends Object

LITTLE endianness is default for GraphHopper and most microprocessors.

Author:

Peter Karich

Field Summary

Fields

Modifier and Type	Field	Description
static final BitUtil	LITTLE

Constructor Summary

Constructors

Constructor	Description
BitUtil()

Method Summary

Modifier and Type	Method	Description
static int	countBitValue(int maxTurnCosts)
byte[]	fromBitString(String str)
final void	fromDouble(byte[] bytes, double value)
final void	fromDouble(byte[] bytes, double value, int offset)
final byte[]	fromDouble(double value)
final void	fromFloat(byte[] bytes, float value)
final void	fromFloat(byte[] bytes, float value, int offset)
final byte[]	fromFloat(float value)
final void	fromInt(byte[] bytes, int value)
final void	fromInt(byte[] bytes, int value, int offset)
final byte[]	fromInt(int value)
final void	fromLong(byte[] bytes, long value)
final void	fromLong(byte[] bytes, long value, int offset)
final byte[]	fromLong(long value)
final void	fromShort(byte[] bytes, short value)
void	fromShort(byte[] bytes, short value, int offset)
final byte[]	fromShort(short value)
final int	getIntHigh(long longValue)
final int	getIntLow(long longValue)
String	toBitString(byte[] bytes)	Higher order bits comes first in the returned string.
final String	toBitString(long value)	Similar to Long.toBinaryString
String	toBitString(long value, int bits)	Higher order bits comes first in the returned string.
final String	toBitString(IntsRef intsRef)
final double	toDouble(byte[] bytes)
final double	toDouble(byte[] bytes, int offset)
final float	toFloat(byte[] bytes)
final float	toFloat(byte[] bytes, int offset)
final int	toInt(byte[] b)
final int	toInt(byte[] b, int offset)
String	toLastBitString(long value, int bits)
final long	toLong(byte[] b)	See the counterpart fromLong(long)
final long	toLong(byte[] b, int offset)
final long	toLong(int intLow, int intHigh)
final short	toShort(byte[] b)
final short	toShort(byte[] b, int offset)
static int	toSignedInt(long x)	Converts the specified long into a signed int ('reverse' method for Integer.toUnsignedLong).

Methods inherited from class java.lang.Object

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

Field Details

LITTLE

public static final BitUtil LITTLE

Constructor Details

BitUtil

public BitUtil()

Method Details

toDouble

public final double toDouble(byte[] bytes)

toDouble

public final double toDouble(byte[] bytes,
 int offset)

fromDouble

public final byte[] fromDouble(double value)

fromDouble

public final void fromDouble(byte[] bytes,
 double value)

fromDouble

public final void fromDouble(byte[] bytes,
 double value,
 int offset)

toFloat

public final float toFloat(byte[] bytes)

toFloat

public final float toFloat(byte[] bytes,
 int offset)

fromFloat

public final byte[] fromFloat(float value)

fromFloat

public final void fromFloat(byte[] bytes,
 float value)

fromFloat

public final void fromFloat(byte[] bytes,
 float value,
 int offset)

toShort

public final short toShort(byte[] b)

toShort

public final short toShort(byte[] b,
 int offset)

toInt

public final int toInt(byte[] b)

toInt

public final int toInt(byte[] b,
 int offset)

fromInt

public final byte[] fromInt(int value)

fromInt

public final void fromInt(byte[] bytes,
 int value)

fromShort

public final byte[] fromShort(short value)

fromShort

public final void fromShort(byte[] bytes,
 short value)

fromShort

public void fromShort(byte[] bytes,
 short value,
 int offset)

fromInt

public final void fromInt(byte[] bytes,
 int value,
 int offset)

toLong

public final long toLong(byte[] b)

See the counterpart fromLong(long)

toLong

public final long toLong(int intLow,
 int intHigh)

toLong

public final long toLong(byte[] b,
 int offset)

fromLong

public final byte[] fromLong(long value)

fromLong

public final void fromLong(byte[] bytes,
 long value)

fromLong

public final void fromLong(byte[] bytes,
 long value,
 int offset)

fromBitString

public byte[] fromBitString(String str)

toBitString

public final String toBitString(IntsRef intsRef)

toBitString

public final String toBitString(long value)

Similar to Long.toBinaryString

toLastBitString

public String toLastBitString(long value,
 int bits)

toBitString

public String toBitString(long value,
 int bits)

Higher order bits comes first in the returned string.

Parameters:

bits - how many bits should be returned.

toBitString

public String toBitString(byte[] bytes)

Higher order bits comes first in the returned string.

getIntLow

public final int getIntLow(long longValue)

getIntHigh

public final int getIntHigh(long longValue)

countBitValue

public static int countBitValue(int maxTurnCosts)

toSignedInt

public static int toSignedInt(long x)

Converts the specified long into a signed int ('reverse' method for Integer.toUnsignedLong).