UKismetMathLibrary::Subtract_IntInt
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Subtracts integer B from integer A and returns the difference. The default B=1 makes it a convenient decrement node in Blueprint graphs.
Caveats & Gotchas
- • No underflow protection: INT_MIN - 1 wraps to INT_MAX silently. Clamp or use int64 when the result could go below -2.1 billion.
- • Same hidden-default pitfall as Add_IntInt: leaving B unconnected in Blueprint silently subtracts 1 rather than 0, which may not be intended.
Signature
static UE_INL_API int32 Subtract_IntInt(int32 A, int32 B = 1);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | int32 | Minuend. | — |
| B | int32 | Subtrahend. | 1 |
Return Type
int32 Example
Decrementing lives C++
Lives = UKismetMathLibrary::Subtract_IntInt(Lives, 1);
if (Lives <= 0) { GameOver(); }Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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