glib/gobject
Philip Withnall 953c182d25 gobject: Document behaviour of GType checking macros on NULL
The macros differ in their handling of NULL values — some macros ignore
them and pass through (e.g. G_TYPE_CHECK_INSTANCE_CAST) while others
will explicitly emit a warning if passed NULL (e.g.
G_TYPE_CHECK_INSTANCE).

Document their behaviour, so people don’t end up putting unnecessary
NULL checks in their code when doing checked type casts.

https://bugzilla.gnome.org/show_bug.cgi?id=735731
2017-01-07 23:43:06 +00:00
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