###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_CleanupTLS Cleanup all TLS data for this thread. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_thread.h) ## Syntax ```c void SDL_CleanupTLS(void); ``` ## Remarks If you are creating your threads outside of SDL and then calling SDL functions, you should call this function before your thread exits, to properly clean up SDL memory. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryThread](CategoryThread)