usa	2016-10-01 23:12:34 +0900 (Sat, 01 Oct 2016)

  New Revision: 56317

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56317

  Log:
    * ext/date/date_parse.c (date_zone_to_diff): it's nonsence and really
      harm that to use unary minus operator with unsigned value.
      get rid of test failures introduced at r56312.

  Modified files:
    trunk/ChangeLog
    trunk/ext/date/date_parse.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 56316)
+++ ChangeLog	(revision 56317)
@@ -1,3 +1,9 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Sat Oct  1 23:08:47 2016  NAKAMURA Usaku  <usa@r...>
+
+	* ext/date/date_parse.c (date_zone_to_diff): it's nonsence and really
+	  harm that to use unary minus operator with unsigned value.
+	  get rid of test failures introduced at r56312.
+
 Sat Oct  1 22:17:49 2016  Nobuyoshi Nakada  <nobu@r...>
 
 	* compile.c (iseq_compile_each): move numeric literal range
Index: ext/date/date_parse.c
===================================================================
--- ext/date/date_parse.c	(revision 56316)
+++ ext/date/date_parse.c	(revision 56317)
@@ -415,7 +415,7 @@ date_zone_to_diff(VALUE str) https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c#L415
 	{
 	    char *p;
 	    int sign = 0;
-	    unsigned long hour = 0, min = 0, sec = 0;
+	    long hour = 0, min = 0, sec = 0;
 
 	    if (l > 3 &&
 		(strncmp(s, "gmt", 3) == 0 ||

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