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/detail/container_fwd.hpp

@@ -0,0 +1,99 @@
+
+// Copyright 2005-2008 Daniel James.
+// 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)
+
+#if !defined(BOOST_DETAIL_CONTAINER_FWD_HPP)
+#define BOOST_DETAIL_CONTAINER_FWD_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+#if BOOST_WORKAROUND(__GNUC__, < 3) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
+#define BOOST_HASH_CHAR_TRAITS string_char_traits
+#else
+#define BOOST_HASH_CHAR_TRAITS char_traits
+#endif
+
+#if (defined(__GLIBCXX__) && defined(_GLIBCXX_DEBUG)) \
+    || BOOST_WORKAROUND(__BORLANDC__, > 0x551) \
+    || BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x842)) \
+    || (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION))
+
+#include <deque>
+#include <list>
+#include <vector>
+#include <map>
+#include <set>
+#include <bitset>
+#include <string>
+#include <complex>
+
+#else
+
+#include <cstddef>
+
+#if !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION) && \
+        defined(__STL_CONFIG_H)
+
+#define BOOST_CONTAINER_FWD_BAD_BITSET
+
+#if !defined(__STL_NON_TYPE_TMPL_PARAM_BUG)
+#define BOOST_CONTAINER_FWD_BAD_DEQUE
+#endif
+
+#endif
+
+#if defined(BOOST_CONTAINER_FWD_BAD_DEQUE)
+#include <deque>
+#endif
+
+#if defined(BOOST_CONTAINER_FWD_BAD_BITSET)
+#include <bitset>
+#endif
+
+#if defined(BOOST_MSVC)
+#pragma warning(push)
+#pragma warning(disable:4099) // struct/class mismatch in fwd declarations
+#endif
+
+namespace std
+{
+    template <class T> class allocator;
+    template <class charT, class traits, class Allocator> class basic_string;
+    template <class charT> struct BOOST_HASH_CHAR_TRAITS;
+    template <class T> class complex;
+}
+
+// gcc 3.4 and greater
+namespace std
+{
+#if !defined(BOOST_CONTAINER_FWD_BAD_DEQUE)
+    template <class T, class Allocator> class deque;
+#endif
+
+    template <class T, class Allocator> class list;
+    template <class T, class Allocator> class vector;
+    template <class Key, class T, class Compare, class Allocator> class map;
+    template <class Key, class T, class Compare, class Allocator>
+    class multimap;
+    template <class Key, class Compare, class Allocator> class set;
+    template <class Key, class Compare, class Allocator> class multiset;
+
+#if !defined(BOOST_CONTAINER_FWD_BAD_BITSET)
+    template <size_t N> class bitset;
+#endif
+    template <class T1, class T2> struct pair;
+}
+
+#if defined(BOOST_MSVC)
+#pragma warning(pop)
+#endif
+
+#endif
+
+#endif