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   template <class Container>
  14   struct is_set : public boost::is_same<typename Container::key_type,
  15                     typename Container::value_type>
  16   {
  17   };
  18
  19   template <class Container> struct has_unique_keys
  20   {
  21     static char flip(typename Container::iterator const&);
  22     static long flip(std::pair<typename Container::iterator, bool> const&);
  23     BOOST_STATIC_CONSTANT(bool,
  24       value = sizeof(long) ==
  25               sizeof(flip(
  26                 ((Container*)0)->insert(*(typename Container::value_type*)0))));
  27   };
  28 }
  29
  30 #endif