UKismetArrayLibrary::SortInt64Array

function Engine Blueprint Since unknown

#include "Kismet/KismetArrayLibrary.h"

Access: public Specifiers: staticBlueprintCallable

Description

Sorts an array of 64-bit integers in place by numeric value. Shows in the Blueprint palette as "Sort Integer64 Array".

Caveats & Gotchas

• Sorts in place and mutates TargetArray directly; there is no non-mutating overload.
• Needed specifically for int64 arrays (e.g. large IDs, timestamps) — passing a TArray<int32> requires SortIntArray instead since Blueprint array nodes are type-specific.

Signature

static void SortInt64Array(UPARAM(Ref) TArray<int64>& TargetArray, bool bStableSort = false, EArraySortOrder SortOrder = EArraySortOrder::Ascending);

Parameters

Name	Type	Description	Default
TargetArray	TArray<int64>&	The array of 64-bit integers to sort in place.	—
bStableSort	bool	If true, uses a stable sort that preserves the relative order of equal elements, at a performance cost.	false
SortOrder	EArraySortOrder	Whether to sort ascending or descending.	EArraySortOrder::Ascending

Return Type

void

Example

Sort large IDs ascending C++

TArray<int64> PlayerIds = { 9000000001LL, 100LL, 4500000000LL };
UKismetArrayLibrary::SortInt64Array(PlayerIds, false, EArraySortOrder::Ascending);
// PlayerIds is now [100, 4500000000, 9000000001]

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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