Annotation Glossary

A

array

Parameter points to an array of items.

I

in

Parameter for input. Default is transfer none.

N

not nullable

NULL must not be passed as the value in, out, in-out; or as a return value.

nullable

NULL may be passed as the value in, out, in-out; or as a return value.

O

optional

NULL may be passed instead of a pointer to a location.

out

Parameter for returning results. Default is transfer full.

out callee-allocates

Out parameter, where callee must allocate storage.

T

transfer full

Free data after the code is done.

transfer none

Don't free data after the code is done.