UKismetMathLibrary::EqualExactly_Vector2DVector2D

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Returns true only if A and B are bit-exactly equal with no tolerance. Use only when comparing vectors that should be byte-identical, such as cached constants.

Caveats & Gotchas

• Floating-point arithmetic almost never produces bit-exact results. Comparing vectors derived from any computation will almost always return false even when the values appear equal. Use EqualEqual_Vector2DVector2D with a tolerance instead.
• In Blueprint this node appears as 'Equal Exactly (Vector2D)' with a '===' compact title to distinguish it from the near-equal '==' node.

Signature

static UE_INL_API bool EqualExactly_Vector2DVector2D(FVector2D A, FVector2D B);

Parameters

Name	Type	Description	Default
A	FVector2D	The first vector.	—
B	FVector2D	The second vector.	—

Return Type

bool

Example

Check if a cached vector was unchanged C++

const FVector2D Zero = FVector2D::ZeroVector;
FVector2D Candidate(0.f, 0.f);
bool bIsZero = UKismetMathLibrary::EqualExactly_Vector2DVector2D(Candidate, Zero);
// true only if bits are identical

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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