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API > API/Runtime > API/Runtime/NetCore > API/Runtime/NetCore/FFastArraySerializer > API/Runtime/NetCore/FFastArraySerializer/TFastArraySerializeHelper
Description
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).
| Name | BuildChangedAndDeletedBuffers |
| Type | function |
| Header File | /Engine/Source/Runtime/Net/Core/Classes/Net/Serialization/FastArraySerializer.h |
| Include Path | #include "Net/Serialization/FastArraySerializer.h" |
void BuildChangedAndDeletedBuffers
(
TMap < int32, int32 > & NewIDToKeyMap,
const TMap < int32, int32 > * OldIDToKeyMap,
TArray < FFastArraySerializer_FastArrayDeltaSerialize_FIdxIDPair , TInlineAllocator< 8 > > & ChangedElements,
TArray < int32, TInlineAllocator< 8 > > & DeletedElements
)