jnr.ffi.byref
Class DoubleByReference

java.lang.Object
  java.lang.Number
      jnr.ffi.byref.AbstractNumberReference<java.lang.Double>
          jnr.ffi.byref.DoubleByReference

All Implemented Interfaces:

java.io.Serializable, ByReference<java.lang.Double>

public final class DoubleByReference
extends AbstractNumberReference<java.lang.Double>

See Also:

Serialized Form

Constructor Summary

DoubleByReference()
Creates a new reference to a double value initialized to zero.

DoubleByReference(double value)
Creates a new reference to a double value

DoubleByReference(java.lang.Double value)
Creates a new reference to a double value

Method Summary

void	marshal(Pointer buffer, long offset) Copies the double value to native memory
int	nativeSize(Runtime runtime) Gets the native size of type of reference in bytes.
void	unmarshal(Pointer buffer, long offset) Copies the double value from native memory

Methods inherited from class jnr.ffi.byref.AbstractNumberReference

byteValue, checkNull, doubleValue, floatValue, getValue, intValue, longValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleByReference

public DoubleByReference()

Creates a new reference to a double value initialized to zero.

DoubleByReference

public DoubleByReference(java.lang.Double value)

Creates a new reference to a double value

Parameters:

value - the initial native value

DoubleByReference

public DoubleByReference(double value)

Creates a new reference to a double value

Parameters:

value - the initial native value

Method Detail

marshal

public void marshal(Pointer buffer,
                    long offset)

Copies the double value to native memory

Parameters:

buffer - the native memory buffer

unmarshal

public void unmarshal(Pointer buffer,
                      long offset)

Copies the double value from native memory

Parameters:

buffer - the native memory buffer.

nativeSize

public final int nativeSize(Runtime runtime)

Gets the native size of type of reference in bytes.

Returns:

the size of a byte in bytes