ceph/src/boost/libs/wave/samples/waveidl/instantiate_re2c_lexer_str.cpp

   1 /*=============================================================================
   2     Boost.Wave: A Standard compliant C++ preprocessor library
   3
   4     Sample: IDL oriented preprocessor
   5             Explicit instantiation of the lex_functor generation function
   6
   7     http://www.boost.org/
   8
   9     Copyright (c) 2001-2010 Hartmut Kaiser. Distributed under the Boost
  10     Software License, Version 1.0. (See accompanying file
  11     LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  12 =============================================================================*/
  13
  14 #include "idl.hpp"
  15
  16 #if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0
  17
  18 #include <string>
  19
  20 #include <boost/wave/token_ids.hpp>
  21 #include <boost/wave/cpplexer/cpp_lex_token.hpp>
  22
  23 #include "idllexer/idl_lex_iterator.hpp"
  24
  25 ///////////////////////////////////////////////////////////////////////////////
  26 //  The following file needs to be included only once throughout the whole
  27 //  program.
  28 #include "idllexer/idl_re2c_lexer.hpp"
  29
  30 ///////////////////////////////////////////////////////////////////////////////
  31 //
  32 //  If you've used another iterator type as std::string::iterator, you have to
  33 //  instantiate the new_lexer_gen<> template for this iterator type too.
  34 //  The reason is, that the library internally uses the new_lexer_gen<>
  35 //  template with a std::string::iterator. (You just have to undefine the
  36 //  following line.)
  37 //
  38 //  This is moved into a separate compilation unit to decouple the compilation
  39 //  of the C++ lexer from the compilation of the other modules, which helps to
  40 //  reduce compilation time.
  41 //
  42 //  The template parameter(s) supplied should be identical to the first
  43 //  parameter supplied while instantiating the boost::wave::context<> template
  44 //  (see the file cpp.cpp).
  45 //
  46 ///////////////////////////////////////////////////////////////////////////////
  47
  48 template struct boost::wave::idllexer::new_lexer_gen<std::string::iterator>;
  49
  50 #endif // BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0