# SDL_aligned_free Free memory allocated by [SDL_aligned_alloc](SDL_aligned_alloc)(). ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c void SDL_aligned_free(void *mem); ``` ## Function Parameters | | | | | ------ | ------- | ----------------------------------------------------------------------------------- | | void * | **mem** | a pointer previously returned by [SDL_aligned_alloc](SDL_aligned_alloc)(), or NULL. | ## Remarks The pointer is no longer valid after this call and cannot be dereferenced anymore. If `mem` is NULL, this function does nothing. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_aligned_alloc](SDL_aligned_alloc) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryStdinc](CategoryStdinc)