ceph/src/boost/libs/metaparse/include/boost/metaparse/v1/impl/push_front_c.hpp

   1 #ifndef BOOST_METAPARSE_V1_IMPL_PUSH_FRONT_C_HPP
   2 #define BOOST_METAPARSE_V1_IMPL_PUSH_FRONT_C_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 #include <boost/metaparse/config.hpp>
  10 #include <boost/metaparse/v1/fwd/string.hpp>
  11
  12 #include <boost/preprocessor/arithmetic/dec.hpp>
  13 #include <boost/preprocessor/repetition/enum_params.hpp>
  14
  15 namespace boost
  16 {
  17   namespace metaparse
  18   {
  19     namespace v1
  20     {
  21       namespace impl
  22       {
  23         template <class S, char C>
  24         struct push_front_c;
  25
  26 #ifdef BOOST_METAPARSE_VARIADIC_STRING
  27         template <char... Cs, char C>
  28         struct push_front_c<string<Cs...>, C> : string<C, Cs...> {};
  29 #else
  30         template <
  31           BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, int C),
  32           char Ch
  33         >
  34         struct push_front_c<
  35           string<BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, C)>,
  36           Ch
  37         > :
  38           string<
  39             Ch,
  40             BOOST_PP_ENUM_PARAMS(
  41               BOOST_PP_DEC(BOOST_METAPARSE_LIMIT_STRING_SIZE),
  42               C
  43             )
  44           >
  45         {};
  46 #endif
  47       }
  48     }
  49   }
  50 }
  51
  52 #endif
  53