--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/ref.hpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,183 @@
+#ifndef BOOST_REF_HPP_INCLUDED
+#define BOOST_REF_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/utility/addressof.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/detail/workaround.hpp>
+
+//
+//  ref.hpp - ref/cref, useful helper functions
+//
+//  Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
+//  Copyright (C) 2001, 2002 Peter Dimov
+//  Copyright (C) 2002 David Abrahams
+//
+// 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)
+//
+//  See http://www.boost.org/libs/bind/ref.html for documentation.
+//
+
+namespace boost
+{
+
+template<class T> class reference_wrapper
+{ 
+public:
+    typedef T type;
+
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1300 )
+
+    explicit reference_wrapper(T& t): t_(&t) {}
+
+#else
+
+    explicit reference_wrapper(T& t): t_(boost::addressof(t)) {}
+
+#endif
+
+    operator T& () const { return *t_; }
+
+    T& get() const { return *t_; }
+
+    T* get_pointer() const { return t_; }
+
+private:
+
+    T* t_;
+};
+
+# if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) )
+#  define BOOST_REF_CONST
+# else
+#  define BOOST_REF_CONST const
+# endif
+
+template<class T> inline reference_wrapper<T> BOOST_REF_CONST ref(T & t)
+{ 
+    return reference_wrapper<T>(t);
+}
+
+template<class T> inline reference_wrapper<T const> BOOST_REF_CONST cref(T const & t)
+{
+    return reference_wrapper<T const>(t);
+}
+
+# undef BOOST_REF_CONST
+
+# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+template<typename T>
+class is_reference_wrapper
+    : public mpl::false_
+{
+};
+
+template<typename T>
+class unwrap_reference
+{
+ public:
+    typedef T type;
+};
+
+#  define AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(X) \
+template<typename T> \
+class is_reference_wrapper< X > \
+    : public mpl::true_ \
+{ \
+}; \
+\
+template<typename T> \
+class unwrap_reference< X > \
+{ \
+ public: \
+    typedef T type; \
+}; \
+/**/
+
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T>)
+#if !defined(BOOST_NO_CV_SPECIALIZATIONS)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> volatile)
+AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const volatile)
+#endif
+
+#  undef AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF
+
+# else // no partial specialization
+
+} // namespace boost
+
+#include <boost/type.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+  typedef char (&yes_reference_wrapper_t)[1];
+  typedef char (&no_reference_wrapper_t)[2];
+      
+  no_reference_wrapper_t is_reference_wrapper_test(...);
+
+  template<typename T>
+  yes_reference_wrapper_t is_reference_wrapper_test(type< reference_wrapper<T> >);
+
+  template<bool wrapped>
+  struct reference_unwrapper
+  {
+      template <class T>
+      struct apply
+      {
+          typedef T type;
+      };
+  };
+
+  template<>
+  struct reference_unwrapper<true>
+  {
+      template <class T>
+      struct apply
+      {
+          typedef typename T::type type;
+      };
+  };
+}
+
+template<typename T>
+class is_reference_wrapper
+{
+ public:
+    BOOST_STATIC_CONSTANT(
+        bool, value = (
+             sizeof(detail::is_reference_wrapper_test(type<T>()))
+            == sizeof(detail::yes_reference_wrapper_t)));
+    
+    typedef ::boost::mpl::bool_<value> type;
+};
+
+template <typename T>
+class unwrap_reference
+    : public detail::reference_unwrapper<
+        is_reference_wrapper<T>::value
+      >::template apply<T>
+{};
+
+# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+template<class T> inline T* get_pointer( reference_wrapper<T> const & r )
+{
+    return r.get_pointer();
+}
+
+} // namespace boost
+
+#endif // #ifndef BOOST_REF_HPP_INCLUDED