use EMPTY_STRING in _parent_via_in_reply_to

[notmuch] / lib / messages.c

diff --git a/lib/messages.c b/lib/messages.c
index 0eee5690d7feae1380aad512ede8110333d8f2b6..ba8a9777b0842e4bdf16b5bd879b1bd4c27b04b5 100644 (file)
--- a/lib/messages.c
+++ b/lib/messages.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ * along with this program.  If not, see https://www.gnu.org/licenses/ .
  *
  * Author: Carl Worth <cworth@cworth.org>
  */
@@ -56,6 +56,15 @@ _notmuch_message_list_add_message (notmuch_message_list_t *list,
     list->tail = &node->next;
 }
 
+bool
+_notmuch_message_list_empty (notmuch_message_list_t *list)
+{
+    if (list == NULL)
+       return TRUE;
+
+    return (list->head == NULL);
+}
+
 notmuch_messages_t *
 _notmuch_messages_create (notmuch_message_list_t *list)
 {
@@ -68,7 +77,7 @@ _notmuch_messages_create (notmuch_message_list_t *list)
     if (unlikely (messages == NULL))
        return NULL;
 
-    messages->is_of_list_type = TRUE;
+    messages->is_of_list_type = true;
     messages->iterator = list->head;
 
     return messages;
@@ -93,7 +102,7 @@ notmuch_bool_t
 notmuch_messages_valid (notmuch_messages_t *messages)
 {
     if (messages == NULL)
-       return FALSE;
+       return false;
 
     if (! messages->is_of_list_type)
        return _notmuch_mset_messages_valid (messages);