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)
