comparison DEPENDENCIES/generic/include/boost/tr1/utility.hpp @ 16:2665513ce2d3

Add boost headers

+//  (C) Copyright John Maddock 2005.
+//  Use, modification and distribution are subject to 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)
+
+#ifndef BOOST_TR1_UTILITY_HPP_INCLUDED
+#  define BOOST_TR1_UTILITY_HPP_INCLUDED
+#  include <boost/tr1/detail/config.hpp>
+
+#ifdef BOOST_HAS_TR1_UTILITY
+
+#  if defined(BOOST_HAS_INCLUDE_NEXT) && !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT)
+#     include_next BOOST_TR1_HEADER(utility)
+#  else
+#     include <boost/tr1/detail/config_all.hpp>
+#     include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(utility))
+#  endif
+
+#else
+
+#if defined(BOOST_TR1_USE_OLD_TUPLE)
+
+#include <boost/type_traits/integral_constant.hpp>
+#include <boost/type_traits/add_const.hpp>
+#include <boost/type_traits/add_reference.hpp>
+#include <boost/mpl/if.hpp>
+
+
+namespace std{ namespace tr1{
+
+template <class T> struct tuple_size; // forward declaration
+template < int I, class T> struct tuple_element; // forward declaration
+
+#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+template <class T1, class T2> 
+struct tuple_size< ::std::pair<T1, T2> >
+   : public ::boost::integral_constant< ::std::size_t, 2>
+{
+};
+
+template <class T1, class T2> 
+struct tuple_element<0, ::std::pair<T1, T2> >
+{
+   typedef typename std::pair<T1, T2>::first_type type;
+};
+
+template <class T1, class T2> 
+struct tuple_element<1, std::pair<T1, T2> >
+{
+   typedef typename std::pair<T1, T2>::second_type type;
+};
+#endif
+
+namespace tuple_detail{
+   template <int I, class T1, class T2>
+   struct tuple_get_result
+   {
+      typedef typename boost::mpl::if_c<I==0, T1, T2>::type t1;
+      typedef typename boost::add_reference<t1>::type type;
+   };
+   template <int I, class T1, class T2>
+   struct const_tuple_get_result
+   {
+      typedef typename boost::mpl::if_c<I==0, T1, T2>::type t1;
+# if BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT( 0x582))
+      // I have absolutely no idea why add_const is not working here for Borland!
+      // It passes all other free-standing tests, some strange interaction going on
+      typedef typename boost::add_reference< const t1 >::type type;
+# else
+      typedef typename boost::add_const<t1>::type t2;
+      typedef typename boost::add_reference<t2>::type type;
+# endif
+   };
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::tuple_get_result<I,T1,T2>::type get(std::pair<T1, T2>& p, const ::boost::true_type&)
+{
+   return p.first;
+}
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::const_tuple_get_result<I,T1,T2>::type get(const std::pair<T1, T2>& p, const ::boost::true_type&)
+{
+   return p.first;
+}
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::tuple_get_result<I,T1,T2>::type get(std::pair<T1, T2>& p, const ::boost::false_type&)
+{
+   return p.second;
+}
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::const_tuple_get_result<I,T1,T2>::type get(const std::pair<T1, T2>& p, const ::boost::false_type&)
+{
+   return p.second;
+}
+
+}
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::tuple_get_result<I,T1,T2>::type get(std::pair<T1, T2>& p)
+{
+   return tuple_detail::get<I>(p, boost::integral_constant<bool, I==0>());
+}
+
+template<int I, class T1, class T2> 
+inline typename tuple_detail::const_tuple_get_result<I,T1,T2>::type get(const std::pair<T1, T2>& p)
+{
+   return tuple_detail::get<I>(p, boost::integral_constant<bool, I==0>());
+}
+
+} } // namespaces
+
+#else
+
+#include <boost/tr1/tuple.hpp>
+
+#endif
+
+#endif
+
+#endif