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ee0a7c14c5
Resolve #96 by introducing C++17 feature (and frequent vendor extension) __has_include(), along with appropriate unit tests and documentation updates
40 lines
1.4 KiB
C++
40 lines
1.4 KiB
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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Example: real_positions
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http://www.boost.org/
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Copyright (c) 2001-2010 Hartmut Kaiser. Distributed under the Boost
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Software License, Version 1.0. (See accompanying file
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LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
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=============================================================================*/
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#include <boost/wave/wave_config.hpp>
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#if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
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#include <string>
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#include <boost/wave/token_ids.hpp>
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#include "real_position_token.hpp" // token class
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#include <boost/wave/cpplexer/cpp_lex_iterator.hpp> // lexer type
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#include <boost/wave/grammars/cpp_has_include_grammar.hpp>
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///////////////////////////////////////////////////////////////////////////////
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//
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// Explicit instantiation of the has_include_grammar_gen template
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// with the correct token type. This instantiates the corresponding parse
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// function, which in turn instantiates the has_include_grammar
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// object (see wave/grammars/cpp_has_include_grammar.hpp)
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//
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///////////////////////////////////////////////////////////////////////////////
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typedef boost::wave::cpplexer::lex_iterator<lex_token<> > lexer_type;
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template struct boost::wave::grammars::has_include_grammar_gen<lexer_type>;
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#endif // #if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
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