(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_CompareAndSwapAtomicInt

Set an atomic variable to a new value if it is currently an old value.

Header File

Defined in <SDL3/SDL_atomic.h>

Syntax

bool SDL_CompareAndSwapAtomicInt(SDL_AtomicInt *a, int oldval, int newval);

Function Parameters

SDL_AtomicInt *	a	a pointer to an SDL_AtomicInt variable to be modified.
int	oldval	the old value.
int	newval	the new value.

Return Value

(bool) Returns true if the atomic variable was set, false otherwise.

Remarks

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

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.

See Also

• SDL_GetAtomicInt
• SDL_SetAtomicInt

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CategoryAPI, CategoryAPIFunction, CategoryAtomic

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