array.c (rb_ary_sum): use rb_rational_add directly

* rational.c (rb_rational_add): rename from nurat_add.

* array.c (rb_ary_sum): use rb_rational_add directly.

* test/ruby/test_array.rb (test_sum): add assertions for an array of
  Rational values.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54602 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/array.c b/array.c
index 93d3d47db0..2bb31dd1e7 100644
--- a/array.c
+++ b/array.c
@@ -5762,7 +5762,7 @@ rb_ary_sum(int argc, VALUE *argv, VALUE ary)
                 v = rb_to_float(v);
                 goto float_value;
             }
-            v = rb_funcall(v, idPLUS, 1, e);
+            v = rb_rational_add(e, v);
         }
         return v;
     }