Set an atomic variable to a new value if it is currently an old value.
<syntaxhighlight lang="c"> SDL_bool SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int newval); </syntaxhighlight>
| 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.
CategoryAPI, CategoryAtomic