pub type amrestrpos_function = Option<unsafe extern "C" fn(scan: IndexScanDesc)>;Aliased Type§
enum amrestrpos_function {
None,
Some(unsafe extern "C" fn(_: *mut IndexScanDescData)),
}Variants§
None
No value.
Some(unsafe extern "C" fn(_: *mut IndexScanDescData))
Some value of type T.