ceph/src/boost/boost/metaparse/v1/cpp98/impl/pop_front.hpp

   1 #ifndef BOOST_METAPARSE_V1_CPP98_IMPL_POP_FRONT_HPP
   2 #define BOOST_METAPARSE_V1_CPP98_IMPL_POP_FRONT_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/v1/cpp98/fwd/string.hpp>
  10
  11 #include <boost/preprocessor/repetition/enum_params.hpp>
  12 #include <boost/preprocessor/repetition/repeat_from_to.hpp>
  13
  14 namespace boost
  15 {
  16   namespace metaparse
  17   {
  18     namespace v1
  19     {
  20       namespace impl
  21       {
  22         template <class S>
  23         struct pop_front;
  24
  25         #ifdef BOOST_METAPARSE_POP_FRONT
  26         #  error BOOST_METAPARSE_POP_FRONT already defined
  27         #endif
  28         #define BOOST_METAPARSE_POP_FRONT(z, n, unused) \
  29           BOOST_PP_COMMA_IF(BOOST_PP_DEC(n)) BOOST_PP_CAT(C, n)
  30
  31         template < \
  32           BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, int C) \
  33         >
  34         struct
  35           pop_front<
  36             string<BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, C)>
  37           > :
  38           string<
  39             BOOST_PP_REPEAT_FROM_TO(
  40               1,
  41               BOOST_METAPARSE_LIMIT_STRING_SIZE,
  42               BOOST_METAPARSE_POP_FRONT,
  43               ~
  44             ),
  45             BOOST_NO_CHAR
  46           >
  47         {};
  48
  49         #undef BOOST_METAPARSE_POP_FRONT
  50       }
  51     }
  52   }
  53 }
  54
  55 #endif
  56