diff DEPENDENCIES/generic/include/boost/fusion/sequence/comparison/detail/less.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
parents
children c530137014c0
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/fusion/sequence/comparison/detail/less.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,51 @@
+/*=============================================================================
+    Copyright (c) 1999-2003 Jaakko Jarvi
+    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_LESS_05052005_1141)
+#define FUSION_LESS_05052005_1141
+
+#include <boost/mpl/bool.hpp>
+#include <boost/fusion/iterator/deref.hpp>
+#include <boost/fusion/iterator/next.hpp>
+#include <boost/fusion/iterator/equal_to.hpp>
+#include <boost/fusion/support/as_const.hpp>
+
+namespace boost { namespace fusion { namespace detail
+{
+    template <typename Seq1, typename Seq2>
+    struct sequence_less
+    {
+        typedef typename result_of::end<Seq1>::type end1_type;
+        typedef typename result_of::end<Seq2>::type end2_type;
+
+        template <typename I1, typename I2>
+        static bool
+        call(I1 const&, I2 const&, mpl::true_)
+        {
+            return false;
+        }
+
+        template <typename I1, typename I2>
+        static bool
+        call(I1 const& a, I2 const& b, mpl::false_)
+        {
+            return extension::as_const(*a) < extension::as_const(*b) ||
+                (!(extension::as_const(*b) < extension::as_const(*a)) && 
+                 call(fusion::next(a), fusion::next(b)));
+        }
+
+        template <typename I1, typename I2>
+        static bool
+        call(I1 const& a, I2 const& b)
+        {
+            typename result_of::equal_to<I1, end1_type>::type eq;
+            return call(a, b, eq);
+        }
+    };
+}}}
+
+#endif