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usr/include/boost/wave/_[ Not.Writable ]

File://usr/include/boost/wave/language_support.hpp

/*=============================================================================
    Boost.Wave: A Standard compliant C++ preprocessor library
    Definition of the various language support constants

    http://www.boost.org/

    Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
    Software License, Version 1.0. (See accompanying file
    LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#if !defined(BOOST_LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)
#define BOOST_LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED

#include <boost/wave/wave_config.hpp>

// this must occur after all of the includes and before any code appears
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_PREFIX
#endif

///////////////////////////////////////////////////////////////////////////////
namespace boost {
namespace wave {

enum language_support {
    //  support flags for C++98
    support_normal = 0x01,
    support_cpp = support_normal,

    support_option_long_long = 0x02,

#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
    //  support flags for C99
    support_option_variadics = 0x04,
    support_c99 = support_option_variadics | support_option_long_long | 0x08,
#endif
#if BOOST_WAVE_SUPPORT_CPP0X != 0
    //  support flags for C++11
    support_option_no_newline_at_end_of_file = 0x20,

    support_cpp0x = support_option_variadics | support_option_long_long |
        support_option_no_newline_at_end_of_file | 0x10,
    support_cpp11 = support_cpp0x,
#if BOOST_WAVE_SUPPORT_CPP1Z != 0
    // support flags for C++17
    support_option_has_include = 0x10000,

    support_cpp1z = support_option_variadics | support_option_long_long |
        support_option_no_newline_at_end_of_file | support_option_has_include |
        0x20000,
    support_cpp17 = support_cpp1z,
#if BOOST_WAVE_SUPPORT_CPP2A != 0
    //  support flags for C++20
    support_option_va_opt = 0x40000,

    support_cpp2a = support_option_variadics | support_option_long_long |
        support_option_no_newline_at_end_of_file | support_option_has_include |
        support_option_va_opt | 0x80000,
    support_cpp20 = support_cpp2a,
#endif
#endif
#endif

    support_option_mask = 0xFFC0,
    support_option_emit_contnewlines = 0x0040,
    support_option_insert_whitespace = 0x0080,
    support_option_preserve_comments = 0x0100,
    support_option_no_character_validation = 0x0200,
    support_option_convert_trigraphs = 0x0400,
    support_option_single_line = 0x0800,
    support_option_prefer_pp_numbers = 0x1000,
    support_option_emit_line_directives = 0x2000,
    support_option_include_guard_detection = 0x4000,
    support_option_emit_pragma_directives = 0x8000
};

///////////////////////////////////////////////////////////////////////////////
//
//  need_cpp
//
//      Extract, if the language to support is C++98
//
///////////////////////////////////////////////////////////////////////////////
inline bool
need_cpp(language_support language)
{
    return (language & ~support_option_mask) == support_cpp;
}

///////////////////////////////////////////////////////////////////////////////
//
//  need_cpp0x
//
//      Extract, if the language to support is C++11
//
///////////////////////////////////////////////////////////////////////////////
#if BOOST_WAVE_SUPPORT_CPP0X != 0

inline bool
need_cpp0x(language_support language)
{
    return (language & ~support_option_mask) == support_cpp0x;
}

#else

inline bool
need_cpp0x(language_support language)
{
    return false;
}

#endif

///////////////////////////////////////////////////////////////////////////////
//
//  need_cpp2a
//
//      Extract if the language to support is C++20
//
///////////////////////////////////////////////////////////////////////////////
#if BOOST_WAVE_SUPPORT_CPP2A != 0

inline bool
need_cpp2a(language_support language)
{
    return (language & ~support_option_mask) == support_cpp2a;
}

#else

inline bool
need_cpp2a(language_support language)
{
    return false;
}

#endif

#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
///////////////////////////////////////////////////////////////////////////////
//
//  need_c99
//
//      Extract, if the language to support is C99
//
///////////////////////////////////////////////////////////////////////////////
inline bool
need_c99(language_support language)
{
    return (language & ~support_option_mask) == support_c99;
}

#else  // BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0

///////////////////////////////////////////////////////////////////////////////
inline bool
need_variadics(language_support language)
{
    return false;
}

///////////////////////////////////////////////////////////////////////////////
inline language_support
enable_variadics(language_support language, bool enable = true)
{
    return language;
}

//////////////////////////////////////////////////////////////////////////////
inline bool
need_c99(language_support language)
{
    return false;
}

#endif // BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0

///////////////////////////////////////////////////////////////////////////////
//
//  get_support_options
//
//      Set preserve comments support in the language to support
//
///////////////////////////////////////////////////////////////////////////////
inline language_support
get_support_options(language_support language)
{
    return static_cast<language_support>(language & support_option_mask);
}

///////////////////////////////////////////////////////////////////////////////
//
//  set_support_options
//
//      Set language option (for fine tuning of lexer behavior)
//
///////////////////////////////////////////////////////////////////////////////
inline language_support
set_support_options(language_support language, language_support option)
{
    return static_cast<language_support>(
        (language & ~support_option_mask) | (option & support_option_mask));
}

///////////////////////////////////////////////////////////////////////////////
//  Get and set different language options
#define BOOST_WAVE_NEED_OPTION(option)                                        \
    inline bool need_ ## option(language_support language)                    \
    {                                                                         \
        return (language & support_option_ ## option) ? true : false;         \
    }                                                                         \
    /**/

#define BOOST_WAVE_ENABLE_OPTION(option)                                      \
    inline language_support                                                   \
    enable_ ## option(language_support language, bool enable = true)          \
    {                                                                         \
        if (enable)                                                           \
            return static_cast<language_support>(language | support_option_ ## option); \
        return static_cast<language_support>(language & ~support_option_ ## option);    \
    }                                                                         \
    /**/

#define BOOST_WAVE_OPTION(option)                                             \
    BOOST_WAVE_NEED_OPTION(option)                                            \
    BOOST_WAVE_ENABLE_OPTION(option)                                          \
    /**/

///////////////////////////////////////////////////////////////////////////////
BOOST_WAVE_OPTION(long_long)                 // support_option_long_long
BOOST_WAVE_OPTION(no_character_validation)   // support_option_no_character_validation
BOOST_WAVE_OPTION(preserve_comments)         // support_option_preserve_comments
BOOST_WAVE_OPTION(prefer_pp_numbers)         // support_option_prefer_pp_numbers
BOOST_WAVE_OPTION(emit_line_directives)      // support_option_emit_line_directives
BOOST_WAVE_OPTION(single_line)               // support_option_single_line
BOOST_WAVE_OPTION(convert_trigraphs)         // support_option_convert_trigraphs
#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
BOOST_WAVE_OPTION(include_guard_detection)   // support_option_include_guard_detection
#endif
#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
BOOST_WAVE_OPTION(variadics)                 // support_option_variadics
#endif
#if BOOST_WAVE_SUPPORT_VA_OPT != 0
BOOST_WAVE_OPTION(va_opt)                    // support_option_va_opt
#endif
#if BOOST_WAVE_EMIT_PRAGMA_DIRECTIVES != 0
BOOST_WAVE_OPTION(emit_pragma_directives)    // support_option_emit_pragma_directives
#endif
BOOST_WAVE_OPTION(insert_whitespace)         // support_option_insert_whitespace
BOOST_WAVE_OPTION(emit_contnewlines)         // support_option_emit_contnewlines
#if BOOST_WAVE_SUPPORT_CPP0X != 0
BOOST_WAVE_OPTION(no_newline_at_end_of_file) // support_no_newline_at_end_of_file
#endif
#if BOOST_WAVE_SUPPORT_HAS_INCLUDE != 0
BOOST_WAVE_OPTION(has_include)               // support_option_has_include
#endif

#undef BOOST_WAVE_NEED_OPTION
#undef BOOST_WAVE_ENABLE_OPTION
#undef BOOST_WAVE_OPTION

///////////////////////////////////////////////////////////////////////////////
}   // namespace wave
}   // namespace boost

// the suffix header occurs after all of the code
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_SUFFIX
#endif

#endif // !defined(BOOST_LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)

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