use rb_hash_new_with_size()

* hash.c: use rb_hash_new_with_size().

* marshal.c: ditto

* struct.c: ditto

* vm_args.c: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/struct.c b/struct.c
index f1f361f953..b36dd37e4b 100644
--- a/struct.c
+++ b/struct.c
@@ -794,7 +794,7 @@ rb_struct_to_a(VALUE s)
 static VALUE
 rb_struct_to_h(VALUE s)
 {
-    VALUE h = rb_hash_new();
+    VALUE h = rb_hash_new_with_size(RSTRUCT_LEN(s));
     VALUE members = rb_struct_members(s);
     long i;