###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_AtomicIncRef Increment an atomic variable used as a reference count. ## Header File Defined in [SDL_atomic.h](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_atomic.h), but apps should use `#include ` ## Syntax ```c #define SDL_AtomicIncRef(a) SDL_AtomicAdd(a, 1) ``` ## Macro Parameters | | | | --------- | ------------------------------------------------------------ | | **a** | a pointer to an [SDL_AtomicInt](SDL_AtomicInt) to increment. | ## Return Value Returns the previous value of the atomic variable. ## Remarks ***Note: If you don't know what this macro is for, you shouldn't use it!*** ## Version This macro is available since SDL 3.0.0. ## See Also * [SDL_AtomicDecRef](SDL_AtomicDecRef) ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro)