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

SDL_AtomicCAS

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

Syntax

SDL_bool SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int newval);

Function Parameters

a a pointer to an SDL_atomic_t variable to be modified
oldval the old value
newval the new value

Return Value

Returns SDL_TRUE if the atomic variable was set, SDL_FALSE otherwise.

Remarks

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

Version

This function is available since SDL 2.0.0.


CategoryAPI


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