tadf	2011-06-30 21:17:52 +0900 (Thu, 30 Jun 2011)

  New Revision: 32332

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=32332

  Log:
    * ext/date/date_core.c (m_ajd): refers a constant.

  Modified files:
    trunk/ChangeLog
    trunk/ext/date/date_core.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 32331)
+++ ChangeLog	(revision 32332)
@@ -1,3 +1,7 @@
+Thu Jun 30 21:16:04 2011  Tadayoshi Funaba  <tadf@d...>
+
+	* ext/date/date_core.c (m_ajd): refers a constant.
+
 Thu Jun 30 20:54:25 2011  Nobuyoshi Nakada  <nobu@r...>
 
 	  * ext/io/console/io-console.gemspec: spin-off gem for 1.9.2.
Index: ext/date/date_core.c
===================================================================
--- ext/date/date_core.c	(revision 32331)
+++ ext/date/date_core.c	(revision 32332)
@@ -1481,6 +1481,8 @@
     }
 }
 
+#define HALF_DAYS_IN_SECONDS (DAY_IN_SECONDS / 2)
+
 static VALUE
 m_ajd(union DateData *x)
 {
@@ -1495,7 +1497,7 @@
 
     r = m_real_jd(x);
     df = m_df(x);
-    df -= 43200; /* 12 hours */
+    df -= HALF_DAYS_IN_SECONDS;
     if (df)
 	r = f_add(r, isec_to_day(df));
     sf = m_sf(x);

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