UKismetMathLibrary::NotEqual_DoubleDouble

function Engine Blueprint Since 5.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Returns true if A is not exactly equal to B (A != B). The logical inverse of EqualEqual_DoubleDouble.

Caveats & Gotchas

• Like EqualEqual_DoubleDouble, this uses exact bitwise comparison — two computed values that are mathematically equal may still compare as not-equal due to floating-point rounding. Use !NearlyEqual_FloatFloat for computed values.
• In Blueprint, this node is the '!= (Float)' node; its primary use is filtering out sentinel or reset values (e.g., != 0.0) rather than comparing computed results.

Signature

static UE_INL_API bool NotEqual_DoubleDouble(double A, double B);

Parameters

Name	Type	Description	Default
A	double	The first value to compare.	—
B	double	The second value to compare.	—

Return Type

bool

Example

Skip processing when a value is a known sentinel C++

// Safe: comparing against the exact constant -1.0 as an invalid sentinel
if (UKismetMathLibrary::NotEqual_DoubleDouble(Score, -1.0))
{
    ProcessScore(Score);
}

Version History

Introduced in: 5.0

Version	Status	Notes
5.6	stable	—

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