check for key_compare_func != NULL (reported by Michal Kara).

Fri Sep 18 03:41:20 1998  Tim Janik  <timj@gtk.org>

        * gtree.c (g_tree_new): check for key_compare_func != NULL (reported
        by Michal Kara).

1 files changed, 2 insertions, 0 deletions

diff --git a/gtree.c b/gtree.c
index 00bfb14c0..0d7f78cf9 100644
--- a/gtree.c
+++ b/gtree.c
@@ -87,6 +87,8 @@ g_tree_new (GCompareFunc key_compare_func)
 {
   GRealTree *rtree;
 
+  g_return_val_if_fail (key_compare_func != NULL, NULL);
+
   rtree = g_new (GRealTree, 1);
   rtree->root = NULL;
   rtree->key_compare = key_compare_func;