SDL_AtomicCAS

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

Header File

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

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

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

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

This function is available since SDL 2.0.0.