Added boost header

test/external/boost/mpl/aux_/single_element_iter.hpp

@@ -0,0 +1,118 @@
+
+#ifndef BOOST_MPL_AUX_SINGLE_ELEMENT_ITER_HPP_INCLUDED
+#define BOOST_MPL_AUX_SINGLE_ELEMENT_ITER_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/mpl for documentation.
+
+// $Id: single_element_iter.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
+// $Revision: 49267 $
+
+#include <boost/mpl/iterator_tags.hpp>
+#include <boost/mpl/advance_fwd.hpp>
+#include <boost/mpl/distance_fwd.hpp>
+#include <boost/mpl/next_prior.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/aux_/nttp_decl.hpp>
+#include <boost/mpl/aux_/value_wknd.hpp>
+#include <boost/mpl/aux_/config/ctps.hpp>
+
+namespace boost { namespace mpl { 
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+namespace aux {
+
+template< typename T, BOOST_MPL_AUX_NTTP_DECL(int, is_last_) >
+struct sel_iter;
+
+template< typename T >
+struct sel_iter<T,0>
+{
+    typedef random_access_iterator_tag category;
+    typedef sel_iter<T,1> next;
+    typedef T type;
+};
+
+template< typename T >
+struct sel_iter<T,1>
+{
+    typedef random_access_iterator_tag category;
+    typedef sel_iter<T,0> prior;
+};
+
+} // namespace aux
+
+template< typename T, BOOST_MPL_AUX_NTTP_DECL(int, is_last_), typename Distance >
+struct advance< aux::sel_iter<T,is_last_>,Distance>
+{
+    typedef aux::sel_iter<
+          T
+        , ( is_last_ + BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Distance) )
+        > type;
+};
+
+template< 
+      typename T
+    , BOOST_MPL_AUX_NTTP_DECL(int, l1)
+    , BOOST_MPL_AUX_NTTP_DECL(int, l2) 
+    >
+struct distance< aux::sel_iter<T,l1>, aux::sel_iter<T,l2> >
+    : int_<( l2 - l1 )>
+{
+};
+
+#else
+
+namespace aux {
+
+struct sel_iter_tag;
+
+template< typename T, BOOST_MPL_AUX_NTTP_DECL(int, is_last_) >
+struct sel_iter
+{
+    enum { pos_ = is_last_ };
+    typedef aux::sel_iter_tag tag;
+    typedef random_access_iterator_tag category;
+
+    typedef sel_iter<T,(is_last_ + 1)> next;
+    typedef sel_iter<T,(is_last_ - 1)> prior;
+    typedef T type;
+};
+
+} // namespace aux
+
+template<> struct advance_impl<aux::sel_iter_tag>
+{
+    template< typename Iterator, typename N > struct apply
+    {
+        enum { pos_ = Iterator::pos_, n_ = N::value };
+        typedef aux::sel_iter<
+              typename Iterator::type
+            , (pos_ + n_)
+            > type;
+    };
+};
+
+template<> struct distance_impl<aux::sel_iter_tag>
+{
+    template< typename Iter1, typename Iter2 > struct apply
+    {
+        enum { pos1_ = Iter1::pos_, pos2_ = Iter2::pos_ };
+        typedef int_<( pos2_ - pos1_ )> type;
+        BOOST_STATIC_CONSTANT(int, value = ( pos2_ - pos1_ ));
+    };
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+}}
+
+#endif // BOOST_MPL_AUX_SINGLE_ELEMENT_ITER_HPP_INCLUDED