# Uses of Interface
java.lang.foreign.ValueLayout.OfDouble

Packages that use ValueLayout.OfDoublePREVIEW
Package
Description
java.lang.foreign
Provides low-level access to memory and functions outside the Java runtime.

- ## Uses of ValueLayout.OfDoublePREVIEW in java.lang.foreign

  Fields in java.lang.foreign declared as ValueLayout.OfDoublePREVIEW
  Modifier and Type
  Field
  Description
  `static final ValueLayout.OfDoublePREVIEW`
  ValueLayout.`JAVA_DOUBLE`
  A value layout constant whose size is the same as that of a Java `double`, (platform-dependent) byte alignment set to `ADDRESS.byteSize()`, and byte order set to `ByteOrder.nativeOrder()`.
  `static final ValueLayout.OfDoublePREVIEW`
  ValueLayout.`JAVA_DOUBLE_UNALIGNED`
  An unaligned value layout constant whose size is the same as that of a Java `double` and byte order set to `ByteOrder.nativeOrder()`.
  Methods in java.lang.foreign that return ValueLayout.OfDoublePREVIEW
  Modifier and Type
  Method
  Description
  `ValueLayout.OfDoublePREVIEW`
  ValueLayout.OfDouble.`withByteAlignment(long byteAlignment)`
  Returns a memory layout with the same characteristics as this layout, but with the given alignment constraint (in bytes).
  `ValueLayout.OfDoublePREVIEW`
  ValueLayout.OfDouble.`withName(String name)`
  Returns a memory layout with the same characteristics as this layout, but with the given name.
  `ValueLayout.OfDoublePREVIEW`
  ValueLayout.OfDouble.`withOrder(ByteOrder order)`
  Returns a value layout with the same characteristics as this layout, but with the given byte order.
  `ValueLayout.OfDoublePREVIEW`
  ValueLayout.OfDouble.`withoutName()`
  Returns a memory layout with the same characteristics as this layout, but with no name.
  Methods in java.lang.foreign with parameters of type ValueLayout.OfDoublePREVIEW
  Modifier and Type
  Method
  Description
  `default MemorySegmentPREVIEW`
  SegmentAllocator.`allocate(ValueLayout.OfDoublePREVIEW layout, double value)`
  Allocates a memory segment with the given layout and initializes it with the given double value.
  `default MemorySegmentPREVIEW`
  SegmentAllocator.`allocateArray(ValueLayout.OfDoublePREVIEW elementLayout, double... elements)`
  Allocates a memory segment with the given layout and initializes it with the given double elements.
  `default double`
  MemorySegment.`get(ValueLayout.OfDoublePREVIEW layout, long offset)`
  Reads a double from this segment at the given offset, with the given layout.
  `default double`
  MemorySegment.`getAtIndex(ValueLayout.OfDoublePREVIEW layout, long index)`
  Reads a double from this segment at the given index, scaled by the given layout size.
  `default void`
  MemorySegment.`set(ValueLayout.OfDoublePREVIEW layout, long offset, double value)`
  Writes a double into this segment at the given offset, with the given layout.
  `default void`
  MemorySegment.`setAtIndex(ValueLayout.OfDoublePREVIEW layout, long index, double value)`
  Writes a double into this segment at the given index, scaled by the given layout size.
  `double[]`
  MemorySegment.`toArray(ValueLayout.OfDoublePREVIEW elementLayout)`
  Copy the contents of this memory segment into a new double array.