1 files changed, 64 insertions, 0 deletions
diff --git a/sw/source/filter/ww8/needed_cast.hxx b/sw/source/filter/ww8/needed_cast.hxx
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+++ b/sw/source/filter/ww8/needed_cast.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef WW_NEEDED_CAST_HXX
+#define WW_NEEDED_CAST_HXX
+
+#include <tools/debug.hxx>
+#include "staticassert.hxx"
+
+namespace ww
+{
+    template<typename Ret, typename Param> Ret checking_cast(Param in, Ret)
+    {
+        return static_cast<Ret>(in);
+    }
+
+    template<typename Ret> Ret checking_cast(Ret in, Ret)
+    {
+        DBG_ASSERT( false, "UnnecessaryCast" );
+        return in;
+    }
+
+    /*
+     needed_cast is the same as static_cast except that there will be a compile
+     time assert when NDEBUG is not defined and the in and out types are the
+     same.  i.e. needed_cast catches unneccessary casts
+    */
+    template<typename Ret, typename Param> Ret needed_cast(Param in)
+    {
+        /*
+         Massage a single argument and a ret value into two arguments to allow
+         a determination if the dest type is the same as the sourct type
+        */
+        return checking_cast(in, Ret());
+    }
+}
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */