boost/type_traits/is_object.hpp

   1
   2 //  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
   3 //  Use, modification and distribution are subject to the Boost Software License,
   4 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 //  http://www.boost.org/LICENSE_1_0.txt).
   6 //
   7 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
   8
   9 #ifndef BOOST_TT_IS_OBJECT_HPP_INCLUDED
  10 #define BOOST_TT_IS_OBJECT_HPP_INCLUDED
  11
  12 #include <boost/type_traits/is_reference.hpp>
  13 #include <boost/type_traits/is_void.hpp>
  14 #include <boost/type_traits/is_function.hpp>
  15 #include <boost/type_traits/detail/ice_and.hpp>
  16 #include <boost/type_traits/detail/ice_not.hpp>
  17 #include <boost/config.hpp>
  18
  19 // should be the last #include
  20 #include <boost/type_traits/detail/bool_trait_def.hpp>
  21
  22 namespace boost {
  23
  24 namespace detail {
  25
  26 template <typename T>
  27 struct is_object_impl
  28 {
  29 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
  30    BOOST_STATIC_CONSTANT(bool, value =
  31       (::boost::type_traits::ice_and<
  32          ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
  33          ::boost::type_traits::ice_not< ::boost::is_void<T>::value>::value,
  34          ::boost::type_traits::ice_not< ::boost::is_function<T>::value>::value
  35       >::value));
  36 #else
  37    BOOST_STATIC_CONSTANT(bool, value =
  38       (::boost::type_traits::ice_and<
  39          ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
  40          ::boost::type_traits::ice_not< ::boost::is_void<T>::value>::value
  41       >::value));
  42 #endif
  43 };
  44
  45 } // namespace detail
  46
  47 BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_object,T,::boost::detail::is_object_impl<T>::value)
  48
  49 } // namespace boost
  50
  51 #include <boost/type_traits/detail/bool_trait_undef.hpp>
  52
  53 #endif // BOOST_TT_IS_OBJECT_HPP_INCLUDED