ceph/src/boost/boost/metaparse/v1/cpp11/impl/or_c.hpp

   1 #ifndef BOOST_METAPARSE_V1_CPP11_OR_C_HPP
   2 #define BOOST_METAPARSE_V1_CPP11_OR_C_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2017.
   5 // Distributed under the Boost Software License, Version 1.0.
   6 //    (See accompanying file LICENSE_1_0.txt or copy at
   7 //          http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #include <boost/mpl/bool.hpp>
  10
  11 namespace boost
  12 {
  13   namespace metaparse
  14   {
  15     namespace v1
  16     {
  17       namespace impl
  18       {
  19         template <bool... Bs>
  20         struct or_c;
  21
  22         template <>
  23         struct or_c<> : boost::mpl::false_ {};
  24
  25         template <bool... Bs>
  26         struct or_c<true, Bs...> : boost::mpl::true_ {};
  27
  28         template <bool... Bs>
  29         struct or_c<false, Bs...> : or_c<Bs...> {};
  30       }
  31     }
  32   }
  33 }
  34
  35 #endif
  36