Added the parts of boost which we need to access shared_ptr and weak_ptr. This will allow for improved memory management of large volumes.

library/include/boost/exception/to_string.hpp

@@ -0,0 +1,74 @@
+//Copyright (c) 2006-2008 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 UUID_7E48761AD92811DC9011477D56D89593
+#define UUID_7E48761AD92811DC9011477D56D89593
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/exception/detail/is_output_streamable.hpp>
+#include <sstream>
+
+namespace
+boost
+    {
+    namespace
+    to_string_detail
+        {
+        template <class T>
+        typename disable_if<is_output_streamable<T>,char>::type to_string( T const & );
+
+        template <class,bool IsOutputStreamable>
+        struct has_to_string_impl;
+
+        template <class T>
+        struct
+        has_to_string_impl<T,true>
+            {
+            enum e { value=1 };
+            };
+
+        template <class T>
+        struct
+        has_to_string_impl<T,false>
+            {
+            static T const & f();
+            enum e { value=1!=sizeof(to_string(f())) };
+            };
+        }
+
+    template <class T>
+    inline
+    typename enable_if<is_output_streamable<T>,std::string>::type
+    to_string( T const & x )
+        {
+        std::ostringstream out;
+        out << x;
+        return out.str();
+        }
+
+    template <class T>
+    struct
+    has_to_string
+        {
+        enum e { value=to_string_detail::has_to_string_impl<T,is_output_streamable<T>::value>::value };
+        };
+
+    template <class T,class U>
+    inline
+    std::string
+    to_string( std::pair<T,U> const & x )
+        {
+        return std::string("(") + to_string(x.first) + ',' + to_string(x.second) + ')';
+        }
+
+    inline
+    std::string
+    to_string( std::exception const & x )
+        {
+        return x.what();
+        }
+    }
+
+#endif