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-rw-r--r--3rdParty/Boost/src/boost/fusion/iterator/detail/advance.hpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/fusion/iterator/detail/advance.hpp b/3rdParty/Boost/src/boost/fusion/iterator/detail/advance.hpp
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+++ b/3rdParty/Boost/src/boost/fusion/iterator/detail/advance.hpp
@@ -0,0 +1,102 @@
+/*=============================================================================
+ Copyright (c) 2001-2011 Joel de Guzman
+
+ 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(FUSION_ADVANCE_09172005_1149)
+#define FUSION_ADVANCE_09172005_1149
+
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/fusion/iterator/next.hpp>
+#include <boost/fusion/iterator/prior.hpp>
+
+namespace boost { namespace fusion { namespace advance_detail
+{
+ // Default advance implementation, perform next(i)
+ // or prior(i) N times.
+
+ template <typename Iterator, int N>
+ struct forward;
+
+ template <typename Iterator, int N>
+ struct next_forward
+ {
+ typedef typename
+ forward<
+ typename result_of::next<Iterator>::type
+ , N-1
+ >::type
+ type;
+ };
+
+ template <typename Iterator, int N>
+ struct forward
+ {
+ typedef typename
+ mpl::eval_if_c<
+ (N == 0)
+ , mpl::identity<Iterator>
+ , next_forward<Iterator, N>
+ >::type
+ type;
+
+ static type const&
+ call(type const& i)
+ {
+ return i;
+ }
+
+ template <typename I>
+ static type
+ call(I const& i)
+ {
+ return call(fusion::next(i));
+ }
+ };
+
+ template <typename Iterator, int N>
+ struct backward;
+
+ template <typename Iterator, int N>
+ struct next_backward
+ {
+ typedef typename
+ backward<
+ typename result_of::prior<Iterator>::type
+ , N+1
+ >::type
+ type;
+ };
+
+ template <typename Iterator, int N>
+ struct backward
+ {
+ typedef typename
+ mpl::eval_if_c<
+ (N == 0)
+ , mpl::identity<Iterator>
+ , next_backward<Iterator, N>
+ >::type
+ type;
+
+ static type const&
+ call(type const& i)
+ {
+ return i;
+ }
+
+ template <typename I>
+ static type
+ call(I const& i)
+ {
+ return call(fusion::prior(i));
+ }
+ };
+
+}}}
+
+#endif