ceph/src/boost/libs/unordered/test/helpers/metafunctions.hpp

   1
   2 // Copyright 2005-2009 Daniel James.
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #if !defined(BOOST_UNORDERED_TEST_HELPERS_METAFUNCTIONS_HEADER)
   7 #define BOOST_UNORDERED_TEST_HELPERS_METAFUNCTIONS_HEADER
   8
   9 #include <boost/config.hpp>
  10 #include <boost/type_traits/is_same.hpp>
  11
  12 namespace test
  13 {
  14     template <class Container>
  15     struct is_set
  16         : public boost::is_same<
  17             BOOST_DEDUCED_TYPENAME Container::key_type,
  18             BOOST_DEDUCED_TYPENAME Container::value_type> {};
  19
  20     template <class Container>
  21     struct has_unique_keys
  22     {
  23         static char flip(BOOST_DEDUCED_TYPENAME Container::iterator const&);
  24         static long flip(std::pair<BOOST_DEDUCED_TYPENAME Container::iterator, bool> const&);
  25         BOOST_STATIC_CONSTANT(bool, value = sizeof(long) == sizeof(
  26                 flip(((Container*) 0)->insert(*(BOOST_DEDUCED_TYPENAME Container::value_type*) 0))
  27             ));
  28     };
  29 }
  30
  31 #endif
  32