Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 123 insertions, 0 deletions

diff --git a/boost/mpl/aux_/transform_iter.hpp b/boost/mpl/aux_/transform_iter.hpp
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+
+#ifndef BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
+#define BOOST_MPL_AUX_TRANSFORM_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: transform_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/apply.hpp>
+#include <boost/mpl/iterator_tags.hpp>
+#include <boost/mpl/next.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/aux_/lambda_spec.hpp>
+#include <boost/mpl/aux_/config/ctps.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace mpl { 
+
+namespace aux {
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template<
+      typename Iterator
+    , typename LastIterator
+    , typename F
+    >
+struct transform_iter
+{
+    typedef Iterator base;
+    typedef forward_iterator_tag category;
+    typedef transform_iter< typename mpl::next<base>::type,LastIterator,F > next;
+    
+    typedef typename apply1<
+          F
+        , typename deref<base>::type
+        >::type type;
+};
+
+template<
+      typename LastIterator
+    , typename F
+    >
+struct transform_iter< LastIterator,LastIterator,F >
+{
+    typedef LastIterator base;
+    typedef forward_iterator_tag category;
+};
+
+#else
+
+template<
+      typename Iterator
+    , typename LastIterator
+    , typename F
+    >
+struct transform_iter;
+
+template< bool >
+struct transform_iter_impl 
+{
+    template<
+          typename Iterator
+        , typename LastIterator
+        , typename F
+        >
+    struct result_
+    {
+        typedef Iterator base;
+        typedef forward_iterator_tag category;
+        typedef transform_iter< typename mpl::next<Iterator>::type,LastIterator,F > next;
+        
+        typedef typename apply1<
+              F
+            , typename deref<Iterator>::type
+            >::type type;
+    };
+};
+
+template<>
+struct transform_iter_impl<true>
+{
+    template<
+          typename Iterator
+        , typename LastIterator
+        , typename F
+        >
+    struct result_
+    {
+        typedef Iterator base;
+        typedef forward_iterator_tag category;
+    };
+};
+
+template<
+      typename Iterator
+    , typename LastIterator
+    , typename F
+    >
+struct transform_iter
+    : transform_iter_impl<
+          ::boost::is_same<Iterator,LastIterator>::value
+        >::template result_< Iterator,LastIterator,F >
+{
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+} // namespace aux
+
+BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::transform_iter)
+
+}}
+
+#endif // BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED