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diff --git a/libical/src/libical/icalrestriction.h b/libical/src/libical/icalrestriction.h
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+/* -*- Mode: C -*- */
+/*======================================================================
+  FILE: icalrestriction.h
+  CREATOR: eric 24 April 1999
+  
+  $Id$
+
+
+ (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of either: 
+
+    The LGPL as published by the Free Software Foundation, version
+    2.1, available at: http://www.fsf.org/copyleft/lesser.html
+
+  Or:
+
+    The Mozilla Public License Version 1.0. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+  The original code is icalrestriction.h
+
+  Contributions from:
+     Graham Davison (g.m.davison@computer.org)
+
+
+======================================================================*/
+
+#include "icalproperty.h"
+#include "icalcomponent.h"
+
+#ifndef ICALRESTRICTION_H
+#define ICALRESTRICTION_H
+
+/* These must stay in this order for icalrestriction_compare to work */
+typedef enum icalrestriction_kind {
+            ICAL_RESTRICTION_NONE=0,    /* 0 */
+            ICAL_RESTRICTION_ZERO,      /* 1 */
+            ICAL_RESTRICTION_ONE,       /* 2 */
+            ICAL_RESTRICTION_ZEROPLUS,  /* 3 */
+            ICAL_RESTRICTION_ONEPLUS,   /* 4 */
+            ICAL_RESTRICTION_ZEROORONE,         /* 5 */
+            ICAL_RESTRICTION_ONEEXCLUSIVE,/* 6 */
+            ICAL_RESTRICTION_ONEMUTUAL,         /* 7 */
+            ICAL_RESTRICTION_UNKNOWN    /* 8 */
+} icalrestriction_kind;
+
+int 
+icalrestriction_compare(icalrestriction_kind restr, int count);
+
+
+int
+icalrestriction_is_parameter_allowed(icalproperty_kind property,
+                                       icalparameter_kind parameter);
+
+int icalrestriction_check(icalcomponent* comp);
+
+
+#endif /* !ICALRESTRICTION_H */
+
+
+