Fix a few warnings from clang.

Also remove the use of a VLA in a context where there can be unbounded
memory allocations.

1 files changed, 1 insertions, 1 deletions

diff --git a/auto_tests/conference_double_invite_test.c b/auto_tests/conference_double_invite_test.c
index 55aabfb6..026c2fcb 100644
--- a/auto_tests/conference_double_invite_test.c
+++ b/auto_tests/conference_double_invite_test.c
@@ -73,7 +73,7 @@ static void conference_double_invite_test(Tox **toxes, State *state)
     fprintf(stderr, "Invitations accepted\n");
 
     // Invite one more time, resulting in friend -1 inviting tox1 (toxes[1]).
-    tox_conference_invite(toxes[0], 0, state[0].conference, 0);
+    tox_conference_invite(toxes[0], 0, state[0].conference, nullptr);
 
     tox_iterate(toxes[0], &state[0]);
     tox_iterate(toxes[1], &state[1]);