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> Unreal Engine API Reference > Runtime > Core > Containers > FBitArrayMemory > MemmoveBitsWordOrder > FBitArrayMemory::MemmoveBitsWordOrder

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FBitArrayMemory::MemmoveBitsWordOrder

Copy NumBits bits from the source pointer and offset into the dest pointer and offset.

Windows

MacOS

Linux

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Containers/BitArray.h
Include	#include "Containers/BitArray.h"

Syntax

static void MemmoveBitsWordOrder
(
    int32 * DestBits,
    int32 DestOffset,
    const int32 * SourceBits,
    int32 SourceOffset,
    uint32 NumBits
)

Remarks

Copy NumBits bits from the source pointer and offset into the dest pointer and offset. This function is not suitable for general use because it uses a bit order that is specific to the uint32 internal storage of BitArray

Bits within each word are read or written in the current platform's mathematical bitorder (Data[0] & 0x1, Data[0] & 0x2, ... Data[0] & 0x100, ... Data[0] & 0x80000000, Data[1] & 0x1 ... Correctly handles overlap between destination range and source range; the array of destination bits will be a copy of the source bits as they were before the copy started.

Parameters

Parameter	Description
DestBits	The base location to which the bits are written.
DestOffset	The (word-order) bit within DestBits at which to start writing. Can be any value; offsets outside of [0,NumBitsPerDWORD) will be equivalent to modifying the DestBits pointer.
SourceBits	The base location from which the bits are read.
SourceOffset	The (word-order) bit within SourceBits at which to start reading. Can be any value; offsets outside of [0,NumBitsPerDWORD) will be equivalent to modifying the SourceBits pointer.
NumBits	Number of bits to copy. Must be >= 0.

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