## Annotation Glossary

### A

array

  Parameter points to an array of items.

### I

inout

  Parameter for input and for returning results. Default is transfer full.

### N

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.

### T

transfer full

  The caller owns the data, and is responsible for free it.

transfer none

  The data is owned by the callee, which is responsible of freeing it.