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diff --git a/3rdParty/Boost/src/boost/iterator/detail/minimum_category.hpp b/3rdParty/Boost/src/boost/iterator/detail/minimum_category.hpp
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+++ b/3rdParty/Boost/src/boost/iterator/detail/minimum_category.hpp
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+// Copyright David Abrahams 2003. 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)
+#ifndef MINIMUM_CATEGORY_DWA20031119_HPP
+# define MINIMUM_CATEGORY_DWA20031119_HPP
+
+# include <boost/type_traits/is_convertible.hpp>
+# include <boost/type_traits/is_same.hpp>
+
+# include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost { namespace detail { 
+//
+// Returns the minimum category type or error_type
+// if T1 and T2 are unrelated.
+//
+// For compilers not supporting is_convertible this only
+// works with the new boost return and traversal category
+// types. The exact boost _types_ are required. No derived types
+// will work. 
+//
+//
+template <bool GreaterEqual, bool LessEqual>
+struct minimum_category_impl
+# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+{
+    template <class T1, class T2> struct apply
+    {
+        typedef T2 type;
+    };
+    typedef void type;
+}
+# endif 
+;
+
+template <class T1, class T2>
+struct error_not_related_by_convertibility;
+  
+template <>
+struct minimum_category_impl<true,false>
+{
+    template <class T1, class T2> struct apply
+    {
+        typedef T2 type;
+    };
+};
+
+template <>
+struct minimum_category_impl<false,true>
+{
+    template <class T1, class T2> struct apply
+    {
+        typedef T1 type;
+    };
+};
+
+template <>
+struct minimum_category_impl<true,true>
+{
+    template <class T1, class T2> struct apply
+    {
+        BOOST_STATIC_ASSERT((is_same<T1,T2>::value));
+        typedef T1 type;
+    };
+};
+
+template <>
+struct minimum_category_impl<false,false>
+{
+    template <class T1, class T2> struct apply
+    : error_not_related_by_convertibility<T1,T2>
+    {
+    };
+};
+
+template <class T1 = mpl::_1, class T2 = mpl::_2>
+struct minimum_category
+{
+    typedef minimum_category_impl< 
+# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
+        is_same<T2,int>::value ||
+# endif 
+        ::boost::is_convertible<T1,T2>::value
+      , ::boost::is_convertible<T2,T1>::value
+# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
+        || is_same<T1,int>::value
+# endif 
+    > outer;
+
+    typedef typename outer::template apply<T1,T2> inner;
+    typedef typename inner::type type;
+      
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,minimum_category,(T1,T2))
+};
+    
+template <>
+struct minimum_category<mpl::_1,mpl::_2>
+{
+    template <class T1, class T2>
+    struct apply : minimum_category<T1,T2>
+    {};
+
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2,minimum_category,(mpl::_1,mpl::_2))
+};
+
+# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
+template <>
+struct minimum_category<int,int>
+{
+    typedef int type;
+};
+# endif
+    
+}} // namespace boost::detail
+
+#endif // MINIMUM_CATEGORY_DWA20031119_HPP