diff options
| -rw-r--r-- | girepository/giarginfo.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/girepository/giarginfo.c b/girepository/giarginfo.c index c96976a8..083ca44d 100644 --- a/girepository/giarginfo.c +++ b/girepository/giarginfo.c @@ -125,7 +125,8 @@ g_arg_info_is_caller_allocates (GIArgInfo *info) * g_arg_info_is_optional: * @info: a #GIArgInfo * - * Obtain if the argument is optional. + * Obtain if the argument is optional. For 'out' arguments this means + * that you can pass %NULL in order to ignore the result. * * Returns: %TRUE if it is an optional argument */ @@ -147,9 +148,13 @@ g_arg_info_is_optional (GIArgInfo *info) * g_arg_info_may_be_null: * @info: a #GIArgInfo * - * Obtain if the argument accepts %NULL. + * Obtain if the type of the argument includes the possibility of %NULL. + * For 'in' values this means that %NULL is a valid value. For 'out' + * values, this means that %NULL may be returned. * - * Returns: %TRUE if it accepts %NULL + * See also g_arg_info_is_optional(). + * + * Returns: %TRUE if the value may be %NULL */ gboolean g_arg_info_may_be_null (GIArgInfo *info) |