UKismetMathLibrary::Not_Int

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticBlueprintPure

Description

Bitwise NOT of an integer (~A), flipping every bit. Typically used to produce an inverse mask for clearing flags with And_IntInt.

Caveats & Gotchas

• This is bitwise NOT, not logical NOT. Not_Int(0) returns -1 (0xFFFFFFFF in two's complement), not 1. If you want to invert a boolean-like integer, compare against 0 instead.
• Not_Int(Not_Int(A)) always returns A — the double-invert identity holds, but applying it accidentally doubles your Blueprint node count for no benefit.

Signature

static UE_INL_API int32 Not_Int(int32 A);

Parameters

Name	Type	Description	Default
A	int32	The integer to bitwise-invert.	—

Return Type

int32

Example

Clear a flag bit using NOT + AND C++

// Clear the burning flag
const int32 FLAG_BURNING = 0x08;
StatusFlags = UKismetMathLibrary::And_IntInt(StatusFlags, UKismetMathLibrary::Not_Int(FLAG_BURNING));

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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