Added thirdparty: boost library

thirdparty/include/boost/exception/current_exception_cast.hpp

@@ -0,0 +1,49 @@
+//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
+
+//Distributed under 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)
+
+#ifndef BOOST_EXCEPTION_7E83C166200811DE885E826156D89593
+#define BOOST_EXCEPTION_7E83C166200811DE885E826156D89593
+
+#ifndef BOOST_EXCEPTION_ENABLE_WARNINGS
+#if __GNUC__*100+__GNUC_MINOR__>301
+#pragma GCC system_header
+#endif
+#ifdef __clang__
+#pragma clang system_header
+#endif
+#ifdef _MSC_VER
+#pragma warning(push,1)
+#endif
+#endif
+
+namespace
+boost
+    {
+    template <class E>
+    inline
+    E *
+    current_exception_cast()
+        {
+        try
+            {
+            throw;
+            }
+        catch(
+        E & e )
+            {
+            return &e;
+            }
+        catch(
+        ...)
+            {
+            return 0;
+            }
+        }
+    }
+
+#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma warning(pop)
+#endif
+#endif