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217 lines
7.8 KiB
C++
217 lines
7.8 KiB
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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Definition of the various language support constants
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http://www.boost.org/
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Copyright (c) 2001-2012 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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#if !defined(LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)
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#define LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED
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#include <boost/wave/wave_config.hpp>
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// this must occur after all of the includes and before any code appears
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#ifdef BOOST_HAS_ABI_HEADERS
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#include BOOST_ABI_PREFIX
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#endif
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///////////////////////////////////////////////////////////////////////////////
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namespace boost {
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namespace wave {
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enum language_support {
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// support flags for C++98
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support_normal = 0x01,
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support_cpp = support_normal,
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support_option_long_long = 0x02,
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#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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// support flags for C99
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support_option_variadics = 0x04,
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support_c99 = support_option_variadics | support_option_long_long | 0x08,
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#endif
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#if BOOST_WAVE_SUPPORT_CPP0X != 0
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support_cpp0x = support_option_variadics | support_option_long_long | 0x10,
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support_cpp11 = support_cpp0x,
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#endif
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support_option_mask = 0xFFC0,
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support_option_emit_contnewlines = 0x0040,
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support_option_insert_whitespace = 0x0080,
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support_option_preserve_comments = 0x0100,
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support_option_no_character_validation = 0x0200,
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support_option_convert_trigraphs = 0x0400,
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support_option_single_line = 0x0800,
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support_option_prefer_pp_numbers = 0x1000,
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support_option_emit_line_directives = 0x2000,
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support_option_include_guard_detection = 0x4000,
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support_option_emit_pragma_directives = 0x8000
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};
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///////////////////////////////////////////////////////////////////////////////
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//
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// need_cpp
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//
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// Extract, if the language to support is C++98
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//
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///////////////////////////////////////////////////////////////////////////////
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inline bool
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need_cpp(language_support language)
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{
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return (language & ~support_option_mask) == support_cpp;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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// need_cpp0x
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//
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// Extract, if the language to support is C++11
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//
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///////////////////////////////////////////////////////////////////////////////
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#if BOOST_WAVE_SUPPORT_CPP0X != 0
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inline bool
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need_cpp0x(language_support language)
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{
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return (language & ~support_option_mask) == support_cpp0x;
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}
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#else
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inline bool
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need_cpp0x(language_support language)
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{
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return false;
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}
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#endif
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#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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///////////////////////////////////////////////////////////////////////////////
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//
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// need_c99
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//
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// Extract, if the language to support is C99
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//
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///////////////////////////////////////////////////////////////////////////////
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inline bool
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need_c99(language_support language)
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{
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return (language & ~support_option_mask) == support_c99;
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}
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#else // BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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///////////////////////////////////////////////////////////////////////////////
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inline bool
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need_variadics(language_support language)
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{
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return false;
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}
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///////////////////////////////////////////////////////////////////////////////
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inline language_support
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enable_variadics(language_support language, bool enable = true)
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{
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return language;
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}
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//////////////////////////////////////////////////////////////////////////////
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inline bool
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need_c99(language_support language)
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{
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return false;
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}
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#endif // BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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///////////////////////////////////////////////////////////////////////////////
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//
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// get_support_options
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//
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// Set preserve comments support in the language to support
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//
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///////////////////////////////////////////////////////////////////////////////
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inline language_support
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get_support_options(language_support language)
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{
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return static_cast<language_support>(language & support_option_mask);
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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// set_support_options
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//
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// Set language option (for fine tuning of lexer behavior)
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//
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///////////////////////////////////////////////////////////////////////////////
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inline language_support
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set_support_options(language_support language, language_support option)
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{
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return static_cast<language_support>(
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(language & ~support_option_mask) | (option & support_option_mask));
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}
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///////////////////////////////////////////////////////////////////////////////
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// Get and set different language options
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#define BOOST_WAVE_NEED_OPTION(option) \
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inline bool need_ ## option(language_support language) \
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{ \
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return (language & support_option_ ## option) ? true : false; \
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} \
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/**/
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#define BOOST_WAVE_ENABLE_OPTION(option) \
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inline language_support \
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enable_ ## option(language_support language, bool enable = true) \
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{ \
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if (enable) \
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return static_cast<language_support>(language | support_option_ ## option); \
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return static_cast<language_support>(language & ~support_option_ ## option); \
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} \
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/**/
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#define BOOST_WAVE_OPTION(option) \
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BOOST_WAVE_NEED_OPTION(option) \
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BOOST_WAVE_ENABLE_OPTION(option) \
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/**/
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///////////////////////////////////////////////////////////////////////////////
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BOOST_WAVE_OPTION(long_long) // support_option_long_long
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BOOST_WAVE_OPTION(no_character_validation) // support_option_no_character_validation
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BOOST_WAVE_OPTION(preserve_comments) // support_option_preserve_comments
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BOOST_WAVE_OPTION(prefer_pp_numbers) // support_option_prefer_pp_numbers
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BOOST_WAVE_OPTION(emit_line_directives) // support_option_emit_line_directives
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BOOST_WAVE_OPTION(single_line) // support_option_single_line
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BOOST_WAVE_OPTION(convert_trigraphs) // support_option_convert_trigraphs
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#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
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BOOST_WAVE_OPTION(include_guard_detection) // support_option_include_guard_detection
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#endif
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#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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BOOST_WAVE_OPTION(variadics) // support_option_variadics
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#endif
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#if BOOST_WAVE_EMIT_PRAGMA_DIRECTIVES != 0
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BOOST_WAVE_OPTION(emit_pragma_directives) // support_option_emit_pragma_directives
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#endif
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BOOST_WAVE_OPTION(insert_whitespace) // support_option_insert_whitespace
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BOOST_WAVE_OPTION(emit_contnewlines) // support_option_emit_contnewlines
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#undef BOOST_WAVE_NEED_OPTION
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#undef BOOST_WAVE_ENABLE_OPTION
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#undef BOOST_WAVE_OPTION
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///////////////////////////////////////////////////////////////////////////////
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} // namespace wave
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} // namespace boost
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// the suffix header occurs after all of the code
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#ifdef BOOST_HAS_ABI_HEADERS
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#include BOOST_ABI_SUFFIX
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#endif
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#endif // !defined(LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)
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