Type Alias BeginSampleScan_function 

pub type BeginSampleScan_function = Option<unsafe extern "C-unwind" fn(node: *mut SampleScanState, params: *mut Datum, nparams: c_int, seed: uint32)>;

Aliased Type

pub enum BeginSampleScan_function {
    None,
    Some(unsafe extern "C-unwind" fn(*mut SampleScanState, *mut Datum, i32, u32)),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(*mut SampleScanState, *mut Datum, i32, u32))

Some value of type T.