Rename `mrb_os_memsize_of_hash_table` to `mrb_hash_memsize`

* The term `hash_table` can be misleading because the return value of this
  function includes memory usage of entire `Hash` object, including not only
  hash table part but also entry list part, etc.
* This function takes a `Hash` object as a receiver and is defined in
  `src/hash.c`, so it is natural to have a `mrb_hash_` prefix.

1 files changed, 1 insertions, 1 deletions

diff --git a/include/mruby/hash.h b/include/mruby/hash.h
index c2af3b976..7383de5ac 100644
--- a/include/mruby/hash.h
+++ b/include/mruby/hash.h
@@ -35,7 +35,7 @@ struct RHash {
 #define mrb_hash_ptr(v)    ((struct RHash*)(mrb_ptr(v)))
 #define mrb_hash_value(p)  mrb_obj_value((void*)(p))
 
-size_t mrb_os_memsize_of_hash_table(mrb_value obj);
+size_t mrb_hash_memsize(mrb_value obj);
 MRB_API mrb_value mrb_hash_new_capa(mrb_state *mrb, mrb_int capa);
 MRB_API mrb_value mrb_ensure_hash_type(mrb_state *mrb, mrb_value hash);
 MRB_API mrb_value mrb_check_hash_type(mrb_state *mrb, mrb_value hash);