json_object_object_foreach warnings

[ghazel]

Clang spits out two warnings:

json_object_object_foreach(o, key, value) {
  printf("%p %p\n", key, value);
}

warning: variable 'key' may be uninitialized when used here [-Wconditional-uninitialized]
warning: variable 'value' may be uninitialized when used here [-Wconditional-uninitialized]

[ghazel]

Seems like a spurious warning, since the condition which sets key and val would also break the loop if it weren't true. However, it's fairly easily silenced by initializing key and val in the macro:

# define json_object_object_foreach(obj,key,val) \
    char *key __attribute__((__unused__)) = NULL; \
    struct json_object *val __attribute__((__unused__)) = NULL; \
    for(struct lh_entry *entry ## key = json_object_get_object(obj)->head, *entry_next ## key = NULL; \
        ({ if(entry ## key) { \
            key = (char*)entry ## key->k; \
            val = (struct json_object*)entry ## key->v; \
            entry_next ## key = entry ## key->next; \
        } ; entry ## key; }); \
        entry ## key = entry_next ## key )

[hawicz]

Looks like this was already fixed, probably by changeset 75d7409.