range.c: step in bignum

* range.c (range_step): honor step in bignum addition.
  [Feature #12912]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63208 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/range.c b/range.c
index 71d81fa6c4..67ead72e78 100644
--- a/range.c
+++ b/range.c
@@ -408,7 +408,7 @@ range_step(int argc, VALUE *argv, VALUE range)
 	} while (FIXABLE(i));
 	b = LONG2NUM(i);
 
-	for (;; b = rb_funcallv(b, id_succ, 0, 0))
+	for (;; b = rb_big_plus(b, step))
 	    rb_yield(b);
     }
     else if (FIXNUM_P(b) && FIXNUM_P(e) && FIXNUM_P(step)) { /* fixnums are special */