Annotation Glossary: libayatana-appindicator Reference Manual

# Annotation Glossary

### A

allow-none

  NULL is OK, both for passing and for returning.

### N

nullable

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

### T

transfer none

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

type

  Override the parsed C type with given type.

### U

Unstable

  Unstable interfaces are experimental or transitional. They are typically used to give outside developers early access to new or rapidly changing technology, or to provide an interim solution to a problem where a more general solution is anticipated. No claims are made about either source or binary compatibility from one minor release to the next. The Unstable interface level is a warning that these interfaces are subject to change without warning and should not be used in unbundled products. Given such caveats, customer impact need not be a factor when considering incompatible changes to an Unstable interface in a major or minor release. Nonetheless, when such changes are introduced, the changes should still be mentioned in the release notes for the affected release.