diff options
Diffstat (limited to 'dbus/dbus-list.c')
| -rw-r--r-- | dbus/dbus-list.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/dbus/dbus-list.c b/dbus/dbus-list.c index 7b306924..d0ca8dfa 100644 --- a/dbus/dbus-list.c +++ b/dbus/dbus-list.c @@ -678,6 +678,19 @@ _dbus_list_foreach (DBusList **list, } } +/** + * Check whether length is exactly one. + * + * @param list the list + * @returns #TRUE if length is exactly one + */ +dbus_bool_t +_dbus_list_length_is_one (DBusList **list) +{ + return (*list != NULL && + (*list)->next == *list); +} + /** @} */ #ifdef DBUS_BUILD_TESTS @@ -713,6 +726,11 @@ verify_list (DBusList **list) while (link != *list); _dbus_assert (length == _dbus_list_get_length (list)); + + if (length == 1) + _dbus_assert (_dbus_list_length_is_one (list)); + else + _dbus_assert (!_dbus_list_length_is_one (list)); } static dbus_bool_t |