From 092c647cb70af77b431f00c83126f93b0364857b Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 26 Aug 2014 11:48:21 +0000
Subject: * time.c (rb_time_unmagnify_to_float): Avoid double rounding.  
 Reported by Tsuyoshi Sawada.   https://bugs.ruby-lang.org/issues/10135#note-1

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 time.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'time.c')

diff --git a/time.c b/time.c
index 7ba83bbea7..6248a74442 100644
--- a/time.c
+++ b/time.c
@@ -697,7 +697,10 @@ rb_time_unmagnify_to_float(wideval_t w)
     }
 #endif
     v = w2v(w);
-    return quo(v, DBL2NUM(TIME_SCALE));
+    if (RB_TYPE_P(v, T_RATIONAL))
+        return rb_Float(quo(v, INT2FIX(TIME_SCALE)));
+    else
+        return quo(v, DBL2NUM(TIME_SCALE));
 }
 
 static void
-- 
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