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1 | /*============================================================================= | |
2 | Boost.Wave: A Standard compliant C++ preprocessor library | |
3 | Explicit instantiation of the lex_functor generation function | |
4 | ||
5 | http://www.boost.org/ | |
6 | ||
7 | Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost | |
8 | Software License, Version 1.0. (See accompanying file | |
9 | LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
10 | =============================================================================*/ | |
11 | ||
12 | #define BOOST_WAVE_SOURCE 1 | |
13 | ||
14 | // disable stupid compiler warnings | |
15 | #include <boost/config/warning_disable.hpp> | |
16 | #include <boost/wave/wave_config.hpp> // configuration data | |
17 | ||
18 | #if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0 | |
19 | ||
20 | #include <string> | |
21 | ||
22 | #include <boost/wave/token_ids.hpp> | |
23 | #include <boost/wave/cpplexer/cpp_lex_token.hpp> | |
24 | #include <boost/wave/cpplexer/cpp_lex_iterator.hpp> | |
25 | ||
26 | /////////////////////////////////////////////////////////////////////////////// | |
27 | // The following file needs to be included only once throughout the whole | |
28 | // program. | |
29 | #include <boost/wave/cpplexer/re2clex/cpp_re2c_lexer.hpp> | |
30 | ||
31 | // this must occur after all of the includes and before any code appears | |
32 | #ifdef BOOST_HAS_ABI_HEADERS | |
33 | #include BOOST_ABI_PREFIX | |
34 | #endif | |
35 | ||
36 | /////////////////////////////////////////////////////////////////////////////// | |
37 | // | |
38 | // This instantiates the correct 'new_lexer' function, which generates the | |
39 | // C++ lexer used in this sample. You will have to instantiate the | |
40 | // new_lexer_gen<> template with the same iterator type, as you have used for | |
41 | // instantiating the boost::wave::context<> object. | |
42 | // | |
43 | // This is moved into a separate compilation unit to decouple the compilation | |
44 | // of the C++ lexer from the compilation of the other modules, which helps to | |
45 | // reduce compilation time. | |
46 | // | |
47 | // The template parameter(s) supplied should be identical to the first | |
48 | // parameter supplied while instantiating the boost::wave::context<> template | |
49 | // (see the file cpp.cpp). | |
50 | // | |
51 | /////////////////////////////////////////////////////////////////////////////// | |
52 | ||
53 | // if you want to use another iterator type for the underlying input stream | |
54 | // a corresponding explicit template instantiation needs to be added below | |
55 | template struct boost::wave::cpplexer::new_lexer_gen< | |
56 | BOOST_WAVE_STRINGTYPE::iterator>; | |
57 | template struct boost::wave::cpplexer::new_lexer_gen< | |
58 | BOOST_WAVE_STRINGTYPE::const_iterator>; | |
59 | ||
60 | // the suffix header occurs after all of the code | |
61 | #ifdef BOOST_HAS_ABI_HEADERS | |
62 | #include BOOST_ABI_SUFFIX | |
63 | #endif | |
64 | ||
65 | #endif // BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0 |