devela::_dep::sdl3::sys::atomic

Function SDL_CompareAndSwapAtomicPointer

pub unsafe extern "C" fn SDL_CompareAndSwapAtomicPointer(
    a: *mut *mut c_void,
    oldval: *mut c_void,
    newval: *mut c_void,
) -> bool
Available on crate feature dep_sdl3 only.
Expand description

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

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

§Parameters

  • a: a pointer to a pointer.
  • oldval: the old pointer value.
  • newval: the new pointer value.

§Return value

Returns true if the pointer was set, false otherwise.

§Thread safety

It is safe to call this function from any thread.

§Availability

This function is available since SDL 3.2.0.

§See also