public final class NativeLongByReference extends AbstractNumberReference<NativeLong>
For example, the following C code,
extern void get_a(long * ap); long foo(void) { long a; // pass a reference to 'a' so get_a() can fill it out get_a(&a); return a; }
Would be declared in java as
interface Lib { void get_a(@Out NativeLongByReference ap); }
and used like this
NativeLongByReference ap = new NativeLongByReference(); lib.get_a(ap); System.out.printf("a from lib=%d\n", a.longValue());
Constructor and Description |
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NativeLongByReference()
Creates a new reference to a native long value initialized to zero.
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NativeLongByReference(long value)
Creates a new reference to a native long value
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NativeLongByReference(NativeLong value)
Creates a new reference to a native long value
|
Modifier and Type | Method and Description |
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void |
marshal(Pointer memory,
long offset)
Copies the long value to native memory
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int |
nativeSize(Runtime runtime)
Gets the native size of type of reference in bytes.
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void |
unmarshal(Pointer memory,
long offset)
Copies the long value from native memory
|
byteValue, checkNull, doubleValue, floatValue, getValue, intValue, longValue, shortValue
public NativeLongByReference()
public NativeLongByReference(NativeLong value)
value
- the initial native valuepublic NativeLongByReference(long value)
value
- the initial native valuepublic void marshal(Pointer memory, long offset)
memory
- the native memory bufferpublic void unmarshal(Pointer memory, long offset)
memory
- the native memory buffer.public final int nativeSize(Runtime runtime)
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