From a9a91c3561ff68d361c7aaf5bfd3379598012c82 Mon Sep 17 00:00:00 2001
From: Yukihiro Matsumoto <matz@ruby-lang.org>
Date: Sun, 22 Jul 2012 23:16:40 +0900
Subject: Time.at should take optional second argument

---
 src/time.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/time.c b/src/time.c
index 45e796069..94b76c8f9 100644
--- a/src/time.c
+++ b/src/time.c
@@ -227,9 +227,10 @@ mrb_time_now(mrb_state *mrb, mrb_value self)
 static mrb_value
 mrb_time_at(mrb_state *mrb, mrb_value self)
 { 
-  mrb_float f;
+  mrb_float f, f2 = 0;
 
-  mrb_get_args(mrb, "f", &f);
+  mrb_get_args(mrb, "f|f", &f, &f2);
+  f += f2 * 1e-6;
   return mrb_time_make(mrb, mrb_class_ptr(self), f, MRB_TIMEZONE_LOCAL);
 }
 
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