###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_DestroyMutex Destroy a mutex created with [SDL_CreateMutex](SDL_CreateMutex)(). ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_mutex.h) ## Syntax ```c void SDL_DestroyMutex(SDL_Mutex *mutex); ``` ## Function Parameters | | | | | ------------------------ | --------- | --------------------- | | [SDL_Mutex](SDL_Mutex) * | **mutex** | the mutex to destroy. | ## Remarks This function must be called on any mutex that is no longer needed. Failure to destroy a mutex will result in a system memory or resource leak. While it is safe to destroy a mutex that is _unlocked_, it is not safe to attempt to destroy a locked mutex, and may result in undefined behavior depending on the platform. ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_CreateMutex](SDL_CreateMutex) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryMutex](CategoryMutex)