3.0

1 files changed, 61 insertions, 0 deletions

diff --git a/shared/loki/ConstPolicy.h b/shared/loki/ConstPolicy.h
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+////////////////////////////////////////////////////////////////////////////////
+// The Loki Library
+// Copyright (c) 2006 Richard Sposato
+// Copyright (c) 2006 Peter Kümmel
+// Permission to use, copy, modify, distribute and sell this software for any 
+//     purpose is hereby granted without fee, provided that the above copyright 
+//     notice appear in all copies and that both that copyright notice and this 
+//     permission notice appear in supporting documentation.
+// The authors make no representations about the 
+//     suitability of this software for any purpose. It is provided "as is" 
+//     without express or implied warranty.
+////////////////////////////////////////////////////////////////////////////////
+#ifndef LOKI_CONST_POLICY_INC_
+#define LOKI_CONST_POLICY_INC_
+
+// $Id: ConstPolicy.h 769 2006-10-26 10:58:19Z syntheticpp $
+
+
+namespace Loki
+{
+
+////////////////////////////////////////////////////////////////////////////////
+/// @note These policy classes are used in LockingPtr and SmartPtr to define
+///  how const is propagated from the pointee.
+////////////////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////////////////
+///  \class DontPropagateConst
+///
+///  \ingroup ConstGroup
+///  Don't propagate constness of pointed or referred object.
+////////////////////////////////////////////////////////////////////////////////
+
+    template< class T >
+    struct DontPropagateConst
+    {
+        typedef T Type;
+    };
+
+////////////////////////////////////////////////////////////////////////////////
+///  \class PropagateConst
+///
+///  \ingroup ConstGroup
+///  Propagate constness of pointed or referred object.
+////////////////////////////////////////////////////////////////////////////////
+
+    template< class T >
+    struct PropagateConst
+    {
+        typedef const T Type;
+    };
+
+// default will not break existing code
+#ifndef LOKI_DEFAULT_CONSTNESS
+#define LOKI_DEFAULT_CONSTNESS ::Loki::DontPropagateConst
+#endif
+
+} // end namespace Loki
+
+#endif // end file guardian