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+#ifndef BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_
+#define BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif
+
+//----------------------------------------------------------------------
+// (C) Copyright 2004 Pavel Vozenilek.
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+// This file contains helper macros used when exception support may be
+// disabled (as indicated by macro BOOST_NO_EXCEPTIONS).
+//
+// Before picking up these macros you may consider using RAII techniques
+// to deal with exceptions - their syntax can be always the same with
+// or without exception support enabled.
+//
+
+/* Example of use:
+
+void foo() {
+ BOOST_TRY {
+ ...
+ } BOOST_CATCH(const std::bad_alloc&) {
+ ...
+ BOOST_RETHROW
+ } BOOST_CATCH(const std::exception& e) {
+ ...
+ }
+ BOOST_CATCH_END
+}
+
+With exception support enabled it will expand into:
+
+void foo() {
+ { try {
+ ...
+ } catch (const std::bad_alloc&) {
+ ...
+ throw;
+ } catch (const std::exception& e) {
+ ...
+ }
+ }
+}
+
+With exception support disabled it will expand into:
+
+void foo() {
+ { if(true) {
+ ...
+ } else if (false) {
+ ...
+ } else if (false) {
+ ...
+ }
+ }
+}
+*/
+//----------------------------------------------------------------------
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+#if !(defined BOOST_NO_EXCEPTIONS)
+# define BOOST_TRY { try
+# define BOOST_CATCH(x) catch(x)
+# define BOOST_RETHROW throw;
+# define BOOST_CATCH_END }
+#else
+# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+# define BOOST_TRY { if ("")
+# define BOOST_CATCH(x) else if (!"")
+# else
+# define BOOST_TRY { if (true)
+# define BOOST_CATCH(x) else if (false)
+# endif
+# define BOOST_RETHROW
+# define BOOST_CATCH_END }
+#endif
+
+
+#endif