added defer_free

hashmap.hpp

@@ -102,7 +102,6 @@ struct Hash_Map {
     }
 
     value_type get_object(key_type key) {
-
         int index = get_index_of_living_cell_if_it_exists(key, hm_hash((key_type)key));
         if (index != -1) {
             return data[index].object;

macros.hpp

@@ -54,6 +54,8 @@ static struct {
 
 #define defer auto TOKENPASTE2(__deferred_lambda_call, __COUNTER__) = deferrer << [&]
 
+#define defer_free(var) defer { free(var); }
+
 
 /*
    defer {