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

SDL_AtomicAdd

Add to an atomic variable.

Header File

Defined in SDL_atomic.h

Syntax

int SDL_AtomicAdd(SDL_atomic_t *a, int v);

Function Parameters

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

Return Value

(int) 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 2.0.2.

See Also

• SDL_AtomicDecRef
• SDL_AtomicIncRef

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CategoryAPI, CategoryAPIFunction, CategoryAtomic

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