Package org.bytedeco.javacpp
Class LongPointer
java.lang.Object
org.bytedeco.javacpp.Pointer
org.bytedeco.javacpp.LongPointer
- All Implemented Interfaces:
AutoCloseable
The peer class to native pointers and arrays of
long long
.
All operations take into account the position and limit, when appropriate.-
Nested Class Summary
Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer
Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.DeallocatorReference, Pointer.DeallocatorThread, Pointer.NativeDeallocator, Pointer.ProxyDeallocator, Pointer.ReferenceCounter
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Field Summary
FieldsFields inherited from class org.bytedeco.javacpp.Pointer
address, capacity, deallocatorThread, limit, maxBytes, maxPhysicalBytes, maxRetries, position
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Constructor Summary
ConstructorsConstructorDescriptionLongPointer
(long size) Allocates a nativelong long
array of the given size.LongPointer
(long... array) Allocates enough memory for the array and copies it.LongPointer
(LongBuffer buffer) For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it. -
Method Summary
Modifier and TypeMethodDescriptionprivate void
allocateArray
(long size) final LongBuffer
asBuffer()
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.capacity
(long capacity) Sets the capacity and returns this.long
get()
long
get
(long i) get
(long[] array) get
(long[] array, int offset, int length) Reads a portion of the native array into a Java array.getPointer
(long i) ReturnsgetPointer(getClass(), i)
.limit
(long limit) Sets the limit and returns this.position
(long position) Sets the position and returns this.put
(long l) put
(long... array) put
(long[] array, int offset, int length) Writes a portion of a Java array into the native array.put
(long i, long l) Copies thelong long
value to the i-th element of a native array.int
sizeof()
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error.Methods inherited from class org.bytedeco.javacpp.Pointer
address, asByteBuffer, availablePhysicalBytes, calloc, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, init, interruptDeallocatorThread, isNull, isNull, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero
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Field Details
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logger
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Constructor Details
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LongPointer
public LongPointer(long... array) Allocates enough memory for the array and copies it.- Parameters:
array
- the array to copy- See Also:
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LongPointer
For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it.- Parameters:
buffer
- the Buffer to reference or copy- See Also:
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LongPointer
public LongPointer(long size) Allocates a nativelong long
array of the given size.- Parameters:
size
- the number oflong long
elements to allocate
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LongPointer
public LongPointer()- See Also:
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LongPointer
- See Also:
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Method Details
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allocateArray
private void allocateArray(long size) -
position
Description copied from class:Pointer
Sets the position and returns this. That makes thearray.position(i)
statement sort of equivalent to thearray[i]
statement in C++. -
limit
Description copied from class:Pointer
Sets the limit and returns this. Used to limit the size of an operation on this object. -
capacity
Description copied from class:Pointer
Sets the capacity and returns this. Should not be called more than once after allocation. -
sizeof
public int sizeof()Description copied from class:Pointer
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error. -
getPointer
Description copied from class:Pointer
ReturnsgetPointer(getClass(), i)
.- Overrides:
getPointer
in classPointer
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get
public long get()- Returns:
get(0)
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get
public long get(long i) - Returns:
- the i-th
long long
of a native array
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put
- Returns:
put(0, l)
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put
Copies thelong long
value to the i-th element of a native array.- Parameters:
i
- the index into the arrayl
- thelong long
value to copy- Returns:
- this
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get
- Returns:
get(array, 0, array.length)
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put
- Returns:
put(array, 0, array.length)
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get
Reads a portion of the native array into a Java array.- Parameters:
array
- the array to write tooffset
- the offset into the array where to start writinglength
- the length of data to read and write- Returns:
- this
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put
Writes a portion of a Java array into the native array.- Parameters:
array
- the array to read fromoffset
- the offset into the array where to start readinglength
- the length of data to read and write- Returns:
- this
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asBuffer
Description copied from class:Pointer
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.
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