SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)


Add to an atomic variable.


int SDL_AtomicAdd(SDL_atomic_t *a, int v);

Function Parameters

a a pointer to an SDL_atomic_t variable to be modified
v the desired value to add

Return Value

Returns the previous value of the atomic variable.


This function also acts as a full memory barrier.

Note: If you don't know what this function is for, you shouldn't use it!


This function is available since SDL 2.0.2.


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