pub type avifIOReadFunc = Option<unsafe extern "C" fn(io: *mut avifIO, readFlags: u32, offset: u64, size: usize, out: *mut avifROData) -> avifResult>;Aliased Type§
pub enum avifIOReadFunc {
None,
Some(unsafe extern "C" fn(*mut avifIO, u32, u64, usize, *mut avifROData) -> u32),
}