boost/boost/type_traits/is_object.hpp

   1
   2 // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
   3 // Permission to copy, use, modify, sell and distribute this software is
   4 // granted provided this copyright notice appears in all copies. This software
   5 // is provided "as is" without express or implied warranty, and with no claim
   6 // as to its suitability for any purpose.
   7 //
   8 // See http://www.boost.org for most recent version including documentation.
   9
  10 #ifndef BOOST_TT_IS_OBJECT_HPP_INCLUDED
  11 #define BOOST_TT_IS_OBJECT_HPP_INCLUDED
  12
  13 #include "boost/type_traits/is_reference.hpp"
  14 #include "boost/type_traits/is_void.hpp"
  15 #include "boost/type_traits/is_function.hpp"
  16 #include "boost/type_traits/detail/ice_and.hpp"
  17 #include "boost/type_traits/detail/ice_not.hpp"
  18 #include "boost/config.hpp"
  19
  20 // should be the last #include
  21 #include "boost/type_traits/detail/bool_trait_def.hpp"
  22
  23 namespace boost {
  24
  25 namespace detail {
  26
  27 template <typename T>
  28 struct is_object_impl
  29 {
  30 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
  31    BOOST_STATIC_CONSTANT(bool, value =
  32       (::boost::type_traits::ice_and<
  33          ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
  34          ::boost::type_traits::ice_not< ::boost::is_void<T>::value>::value,
  35          ::boost::type_traits::ice_not< ::boost::is_function<T>::value>::value
  36       >::value));
  37 #else
  38    BOOST_STATIC_CONSTANT(bool, value =
  39       (::boost::type_traits::ice_and<
  40          ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
  41          ::boost::type_traits::ice_not< ::boost::is_void<T>::value>::value
  42       >::value));
  43 #endif
  44 };
  45
  46 } // namespace detail
  47
  48 BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_object,T,::boost::detail::is_object_impl<T>::value)
  49
  50 } // namespace boost
  51
  52 #include "boost/type_traits/detail/bool_trait_undef.hpp"
  53
  54 #endif // BOOST_TT_IS_OBJECT_HPP_INCLUDED