nobu	2012-03-31 07:47:33 +0900 (Sat, 31 Mar 2012)

  New Revision: 35185

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=35185

  Log:
    * hash.c (st_foreach_safe): since table is not for VALUE, Qundef is
      not special value, so use 0 instead.  therefore this function can be
      applied to only st_table which 0 is invalid as keys, e.g., IDs.

  Modified files:
    trunk/ChangeLog
    trunk/hash.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 35184)
+++ ChangeLog	(revision 35185)
@@ -1,5 +1,9 @@
-Sat Mar 31 07:44:30 2012  Nobuyoshi Nakada  <nobu@r...>
+Sat Mar 31 07:47:31 2012  Nobuyoshi Nakada  <nobu@r...>
 
+	* hash.c (st_foreach_safe): since table is not for VALUE, Qundef is
+	  not special value, so use 0 instead.  therefore this function can be
+	  applied to only st_table which 0 is invalid as keys, e.g., IDs.
+
 	* hash.c: Qundef cannot be passed from st_foreach_check().
 
 	* hash.c, marshal.c, object.c, variable.c: fix callback argument types
Index: hash.c
===================================================================
--- hash.c	(revision 35184)
+++ hash.c	(revision 35185)
@@ -131,7 +131,7 @@
     arg.tbl = table;
     arg.func = (st_foreach_func *)func;
     arg.arg = a;
-    if (st_foreach_check(table, foreach_safe_i, (st_data_t)&arg, (st_data_t)Qundef)) {
+    if (st_foreach_check(table, foreach_safe_i, (st_data_t)&arg, 0)) {
 	rb_raise(rb_eRuntimeError, "hash modified during iteration");
     }
 }

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