Avoid uninitialized variable warnings

Fix json_object_object_foreach to avoid uninitialized variable warnings
using ANSI C or MSC.

diff --git a/json_object.h b/json_object.h
index db63d22997edf9735de0800ddd58c344dfd12f03..a3a86c09126bb5658714ecd3cd89d5fb14138cbd 100644 (file)
--- a/json_object.h
+++ b/json_object.h
@@ -523,8 +523,8 @@ JSON_EXPORT void json_object_object_del(struct json_object* obj, const char *key
 #else /* ANSI C or MSC */
 
 # define json_object_object_foreach(obj,key,val) \
-       char *key;\
-       struct json_object *val; \
+       char *key = NULL;\
+       struct json_object *val = NULL; \
        struct lh_entry *entry ## key; \
        struct lh_entry *entry_next ## key = NULL; \
        for(entry ## key = json_object_get_object(obj)->head; \