ceph/src/boost/boost/icl/concept/element_set_value.hpp

   1 /*-----------------------------------------------------------------------------+
   2 Copyright (c) 2010-2010: Joachim Faulhaber
   3 +------------------------------------------------------------------------------+
   4    Distributed under the Boost Software License, Version 1.0.
   5       (See accompanying file LICENCE.txt or copy at
   6            http://www.boost.org/LICENSE_1_0.txt)
   7 +-----------------------------------------------------------------------------*/
   8 #ifndef BOOST_ICL_CONCEPT_ELEMENT_SET_VALUE_HPP_JOFA_100924
   9 #define BOOST_ICL_CONCEPT_ELEMENT_SET_VALUE_HPP_JOFA_100924
  10
  11 #include <boost/icl/type_traits/is_element_container.hpp>
  12
  13 namespace boost{ namespace icl
  14 {
  15
  16 //==============================================================================
  17 //= AlgoUnifiers<Set>
  18 //==============================================================================
  19 template<class Type, class Iterator>
  20 inline typename enable_if<is_element_set<Type>, const typename Type::key_type>::type&
  21 co_value(Iterator it_)
  22 {
  23     return *it_;
  24 }
  25
  26
  27 }} // namespace boost icl
  28
  29 #endif
  30
  31