ceph/src/boost/libs/wave/samples/cpp_tokens/instantiate_slex_lexer.cpp

   1 /*=============================================================================
   2     Boost.Wave: A Standard compliant C++ preprocessor library
   3
   4     Sample: Print out the preprocessed tokens returned by the Wave iterator
   5             Explicit instantiation of the lex_functor generation function
   6
   7     http://www.boost.org/
   8
   9     Copyright (c) 2001-2012 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 "cpp_tokens.hpp"          // config data
  15
  16 #if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0
  17
  18 #include <string>
  19
  20 #include <boost/wave/token_ids.hpp>
  21
  22 #include "slex_token.hpp"
  23 #include "slex_iterator.hpp"
  24
  25 ///////////////////////////////////////////////////////////////////////////////
  26 //  The following file needs to be included only once throughout the whole
  27 //  program.
  28 #include "slex/cpp_slex_lexer.hpp"
  29
  30 ///////////////////////////////////////////////////////////////////////////////
  31 //
  32 //  This instantiates the correct 'new_lexer' function, which generates the
  33 //  C++ lexer used in this sample.
  34 //
  35 //  This is moved into a separate compilation unit to decouple the compilation
  36 //  of the C++ lexer from the compilation of the other modules, which helps to
  37 //  reduce compilation time.
  38 //
  39 //  The template parameter(s) supplied should be identical to the parameters
  40 //  supplied while instantiating the context<> template.
  41 //
  42 ///////////////////////////////////////////////////////////////////////////////
  43
  44 template struct boost::wave::cpplexer::slex::new_lexer_gen<
  45     std::string::iterator>;
  46
  47 #endif // BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0