src/utils_avltree.c: Fix avl_get to work as documented.

The documentation in the header file for avl_get states that value may be null,
but the code in the source file asserts otherwise. This patch changes the code
to reflect the documentation.

Signed-off-by: Florian Forster <octo@huhu.verplant.org>

diff --git a/src/utils_avltree.c b/src/utils_avltree.c
index 09cf2e6..11d3d71 100644 (file)
--- a/src/utils_avltree.c
+++ b/src/utils_avltree.c
@@ -581,13 +581,12 @@ int avl_get (avl_tree_t *t, const void *key, void **value)
 {
        avl_node_t *n;
 
-       assert (value != NULL);
-
        n = search (t, key);
        if (n == NULL)
                return (-1);
 
-       *value = n->value;
+       if (value != NULL)
+               *value = n->value;
 
        return (0);
 }