* enum.c: Make Enumerable#chunk with no block return

  an Enumerator [#2172]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56342 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/enum.c b/enum.c
index 84f6a6f6af..625097c636 100644
--- a/enum.c
+++ b/enum.c
@@ -2995,14 +2995,14 @@ chunk_i(RB_BLOCK_CALL_FUNC_ARGLIST(yielder, enumerator))
  *      }
  *    }
  *
+ *  If no block is given, an enumerator to `chunk` is returned instead.
  */
 static VALUE
 enum_chunk(VALUE enumerable)
 {
     VALUE enumerator;
 
-    if (!rb_block_given_p())
-	rb_raise(rb_eArgError, "no block given");
+    RETURN_SIZED_ENUMERATOR(enumerable, 0, 0, enum_size);
 
     enumerator = rb_obj_alloc(rb_cEnumerator);
     rb_ivar_set(enumerator, rb_intern("chunk_enumerable"), enumerable);