g_variant_get_child_value: Add a precondition on length

Ensure callers get a warning if they pass a bad length. Split into a separate commit and changed to order index before n_children by Colin Walters <walters@verbum.org>
dieterv · Jun 5, 2011 · a62eb42 · a62eb42
1 parent 56c4e19
commit a62eb42
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/glib/gvariant-core.c b/glib/gvariant-core.c
@@ -848,6 +848,8 @@ GVariant *
 g_variant_get_child_value (GVariant *value,
                            gsize     index_)
 {
+  g_return_val_if_fail (index_ < g_variant_n_children (value), NULL);
+
   if (~g_atomic_int_get (&value->state) & STATE_SERIALISED)
     {
       g_variant_lock (value);