add boost on mac

macx64/include/boost/multi_index/detail/cons_stdtuple.hpp

@@ -0,0 +1,93 @@
+/* Copyright 2003-2014 Joaquin M Lopez Munoz.
+ * 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/multi_index for library home page.
+ */
+
+#ifndef BOOST_MULTI_INDEX_DETAIL_CONS_STDTUPLE_HPP
+#define BOOST_MULTI_INDEX_DETAIL_CONS_STDTUPLE_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
+#include <boost/mpl/if.hpp>
+#include <boost/tuple/tuple.hpp>
+#include <tuple>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+/* std::tuple wrapper providing the cons-based interface of boost::tuple for
+ * composite_key interoperability.
+ */
+
+template<typename StdTuple,std::size_t N>
+struct cons_stdtuple;
+
+struct cons_stdtuple_ctor_terminal
+{
+  typedef boost::tuples::null_type result_type;
+
+  template<typename StdTuple>
+  static result_type create(const StdTuple&)
+  {
+    return boost::tuples::null_type();
+  }
+};
+
+template<typename StdTuple,std::size_t N>
+struct cons_stdtuple_ctor_normal
+{
+  typedef cons_stdtuple<StdTuple,N> result_type;
+
+  static result_type create(const StdTuple& t)
+  {
+    return result_type(t);
+  }
+};
+
+template<typename StdTuple,std::size_t N=0>
+struct cons_stdtuple_ctor:
+  boost::mpl::if_c<
+    N<std::tuple_size<StdTuple>::value,
+    cons_stdtuple_ctor_normal<StdTuple,N>,
+    cons_stdtuple_ctor_terminal
+  >::type
+{};
+
+template<typename StdTuple,std::size_t N>
+struct cons_stdtuple
+{
+  typedef typename std::tuple_element<N,StdTuple>::type head_type;
+  typedef cons_stdtuple_ctor<StdTuple,N+1>              tail_ctor;
+  typedef typename tail_ctor::result_type               tail_type;
+  
+  cons_stdtuple(const StdTuple& t_):t(t_){}
+
+  const head_type& get_head()const{return std::get<N>(t);}
+  tail_type get_tail()const{return tail_ctor::create(t);}
+    
+  const StdTuple& t;
+};
+
+template<typename StdTuple>
+typename cons_stdtuple_ctor<StdTuple>::result_type
+make_cons_stdtuple(const StdTuple& t)
+{
+  return cons_stdtuple_ctor<StdTuple>::create(t);
+}
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif