ceph/src/boost/libs/python/include/boost/python/detail/enable_if.hpp

   1 // Copyright David Abrahams 2004. Distributed under the Boost
   2 // Software License, Version 1.0. (See accompanying
   3 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4 #ifndef ENABLE_IF_DWA2004722_HPP
   5 # define ENABLE_IF_DWA2004722_HPP
   6
   7 # include <boost/python/detail/sfinae.hpp>
   8 # include <boost/detail/workaround.hpp>
   9
  10 #if !defined(BOOST_NO_SFINAE)
  11 #  include <boost/utility/enable_if.hpp>
  12
  13 namespace boost { namespace python { namespace detail {
  14
  15 template <class C, class T = int>
  16 struct enable_if_arg
  17   : enable_if<C,T>
  18 {};
  19
  20 template <class C, class T = int>
  21 struct disable_if_arg
  22   : disable_if<C,T>
  23 {};
  24
  25 template <class C, class T = void>
  26 struct enable_if_ret
  27   : enable_if<C,T>
  28 {};
  29
  30 template <class C, class T = void>
  31 struct disable_if_ret
  32   : disable_if<C,T>
  33 {};
  34
  35 }}} // namespace boost::python::detail
  36
  37 # endif
  38
  39 #endif // ENABLE_IF_DWA2004722_HPP