Type Alias ammarkpos_function 

pub type ammarkpos_function = Option<unsafe extern "C-unwind" fn(scan: IndexScanDesc)>;

Aliased Type

pub enum ammarkpos_function {
    None,
    Some(unsafe extern "C-unwind" fn(*mut IndexScanDescData)),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(*mut IndexScanDescData))

Some value of type T.