ceph/src/boost/libs/local_function/example/impl_pp_keyword.cpp

   1
   2 // Copyright (C) 2009-2012 Lorenzo Caminiti
   3 // Distributed under the Boost Software License, Version 1.0
   4 // (see accompanying file LICENSE_1_0.txt or a copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6 // Home at http://www.boost.org/libs/local_function
   7
   8 //[impl_pp_keyword
   9 #include <boost/local_function/detail/preprocessor/keyword/thisunderscore.hpp>
  10 #include <boost/local_function/detail/preprocessor/keyword/const.hpp>
  11 #include <boost/local_function/detail/preprocessor/keyword/bind.hpp>
  12 #include <boost/detail/lightweight_test.hpp>
  13
  14 // Expand to 1 if space-separated tokens end with `this_`, 0 otherwise.
  15 #define IS_THIS_BACK(tokens) \
  16     BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_IS_THISUNDERSCORE_BACK( \
  17     BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_BIND_REMOVE_FRONT( \
  18     BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_CONST_REMOVE_FRONT( \
  19         tokens \
  20     )))
  21
  22 int main(void) {
  23     BOOST_TEST(IS_THIS_BACK(const bind this_) == 1);
  24     BOOST_TEST(IS_THIS_BACK(const bind& x) == 0);
  25     return boost::report_errors();
  26 }
  27 //]
  28