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

   1 #ifndef BOOST_METAPARSE_V1_CPP11_IMPL_EMPTY_STRING_HPP
   2 #define BOOST_METAPARSE_V1_CPP11_IMPL_EMPTY_STRING_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2013.
   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 namespace boost
  10 {
  11   namespace metaparse
  12   {
  13     namespace v1
  14     {
  15       namespace impl
  16       {
  17         template <class Ignore = int>
  18         struct empty_string
  19         {
  20           typedef empty_string type;
  21
  22           static constexpr char value[1] = {0};
  23         };
  24
  25         template <class Ignore>
  26         constexpr char empty_string<Ignore>::value[1];
  27       }
  28     }
  29   }
  30 }
  31
  32 #endif
  33