pub type FT_Raster_NewFunc = Option<unsafe extern "C" fn(memory: *mut c_void, raster: *mut FT_Raster) -> c_int>;
enum FT_Raster_NewFunc { None, Some(unsafe extern "C" fn(_: *mut c_void, _: *mut *mut FT_RasterRec_) -> i32), }
No value.
Some value of type T.
T