ceph/src/boost/libs/mpl/include/boost/mpl/same_as.hpp

   1
   2 #ifndef BOOST_MPL_SAME_AS_HPP_INCLUDED
   3 #define BOOST_MPL_SAME_AS_HPP_INCLUDED
   4
   5 // Copyright Aleksey Gurtovoy 2000-2004
   6 //
   7 // Distributed under the Boost Software License, Version 1.0.
   8 // (See accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10 //
  11 // See http://www.boost.org/libs/mpl for documentation.
  12
  13 // $Id$
  14 // $Date$
  15 // $Revision$
  16
  17 #include <boost/mpl/not.hpp>
  18 #include <boost/mpl/aux_/lambda_spec.hpp>
  19 #include <boost/mpl/aux_/config/forwarding.hpp>
  20
  21 #include <boost/type_traits/is_same.hpp>
  22
  23 namespace boost { namespace mpl {
  24
  25 template< typename T1 >
  26 struct same_as
  27 {
  28     template< typename T2 > struct apply
  29 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
  30         : is_same<T1,T2>
  31     {
  32 #else
  33     {
  34         typedef typename is_same<T1,T2>::type type;
  35 #endif
  36     };
  37 };
  38
  39 template< typename T1 >
  40 struct not_same_as
  41 {
  42     template< typename T2 > struct apply
  43 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
  44         : not_< is_same<T1,T2> >
  45     {
  46 #else
  47     {
  48         typedef typename not_< is_same<T1,T2> >::type type;
  49 #endif
  50     };
  51 };
  52
  53 }}
  54
  55 #endif // BOOST_MPL_SAME_AS_HPP_INCLUDED