---
title: "Liveness"
description: "Detection of dead stores and unused variables."
Detection of dead stores and unused variables.
Activate with `--liveness`.
Supported languages:
- C/C++/ObjC: Yes
- Java: No
## List of Issue Types
The following issue types are reported by this checker:
- [DEAD_STORE](/docs/next/all-issue-types#dead_store)