(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_AtomicAdd

Add to an atomic variable.

Header File

Defined in SDL_atomic.h, but apps should use #include <SDL3/SDL.h>

Syntax

int SDL_AtomicAdd(SDL_AtomicInt *a, int v);

Function Parameters

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

Return Value

Returns the previous value of the atomic variable.

Remarks

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!

Version

This function is available since SDL 3.0.0.

See Also

• SDL_AtomicDecRef
• SDL_AtomicIncRef

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CategoryAPI, CategoryAPIFunction, CategoryAtomic

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