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> Unreal Engine API Reference > Runtime > Engine > Engine > FFastArraySerializer > TFastArraySerializeHelper > FFastArraySerializer::TFastArraySerializeHelper::BuildChangedAndDeletedBuffers

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FFastArraySerializer::TFastArraySerializeHelper::BuildChangedAndDeletedBuffers

Iterates over the current set of properties, comparing their keys with our old state, to figure out which have changed and need to be serialized.

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References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Engine/NetSerialization.h
Include	#include "Engine/NetSerialization.h"

Syntax

void BuildChangedAndDeletedBuffers
(
    TMap< int32, int32 > & NewIDToKeyMap,
    const TMap< int32, int32 > * OldIDToKeyMap,
    TArray< FFastArraySerializer_FastArrayDeltaSerialize_FIdxIDPair, TInlineAllocator< 8 >> & ChangedElements,
    TArray< int32, TInlineAllocator< 8 >> & DeletedElements
)

Remarks

Iterates over the current set of properties, comparing their keys with our old state, to figure out which have changed and need to be serialized. Also populates a list of elements that are no longer in our list (by ID).

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