pub type LPALCGETSTRINGISOFT = Option<unsafe extern "C" fn(_: *mut ALCdevice, _: i32, _: i32) -> *const i8>;
enum LPALCGETSTRINGISOFT { None, Some(unsafe extern "C" fn(_: *mut ALCdevice, _: i32, _: i32) -> *const i8), }
No value.
Some value of type T.
T