# HG changeset patch
# User alpar
# Date 1078937030 0
# Node ID abfae454c3b5b43740ecef8f237e0afd6b9b5049
# Parent  743fa50c442e37c64383a950d58ec2102085891b
Declarations and definitions of Invalid and INVALID

diff -r 743fa50c442e -r abfae454c3b5 src/work/alpar/invalid.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/work/alpar/invalid.h	Wed Mar 10 16:43:50 2004 +0000
@@ -0,0 +1,26 @@
+// -*- mode:C++ -*-
+
+#ifndef HUGO_INVALID_H
+#define HUGO_INVALID_H
+
+namespace hugo {
+
+  /// Dummy type to make it easier to make invalid iterators.
+  
+  /// See \ref INVALID, how to use it.
+  
+  struct Invalid {};
+  
+  /// Invalid iterators.
+  
+  /// \ref Invalid is a global type that converts to each iterator
+  /// in such a way that the value of the target iterator will be invalid.
+  
+  ///extern Invalid INVALID;
+
+  const Invalid &INVALID = *(Invalid *)0;
+
+};
+
+#endif
+