304 lines
11 KiB
C++
304 lines
11 KiB
C++
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/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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Definition of the predefined macros
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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(BOOST_CPP_MACROMAP_PREDEF_HPP_HK041119)
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#define BOOST_CPP_MACROMAP_PREDEF_HPP_HK041119
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#include <cstdio>
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#include <boost/assert.hpp>
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#include <boost/format.hpp>
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#include <boost/wave/wave_config.hpp>
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#include <boost/wave/wave_config_constant.hpp>
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#include <boost/wave/token_ids.hpp>
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#include <boost/wave/util/time_conversion_helper.hpp> // time_conversion_helper
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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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//
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// This file contains the definition of functions needed for the management
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// of static and dynamic predefined macros, such as __DATE__, __TIME__ etc.
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//
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// Note: __FILE__, __LINE__ and __INCLUDE_LEVEL__ are handled in the file
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// cpp_macromap.hpp.
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//
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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namespace boost {
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namespace wave {
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namespace util {
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///////////////////////////////////////////////////////////////////////////
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class predefined_macros
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{
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typedef BOOST_WAVE_STRINGTYPE string_type;
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public:
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// list of static predefined macros
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struct static_macros {
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char const *name;
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boost::wave::token_id token_id;
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char const *value;
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};
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// list of dynamic predefined macros
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struct dynamic_macros {
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char const *name;
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boost::wave::token_id token_id;
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string_type (predefined_macros:: *generator)() const;
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};
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private:
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boost::wave::util::time_conversion_helper compilation_time_;
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string_type datestr_; // __DATE__
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string_type timestr_; // __TIME__
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string_type version_; // __SPIRIT_PP_VERSION__/__WAVE_VERSION__
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string_type versionstr_; // __SPIRIT_PP_VERSION_STR__/__WAVE_VERSION_STR__
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static string_type strconv(std::string const & ss)
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{
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return string_type(ss.c_str());
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}
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protected:
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void reset_datestr()
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{
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static const char *const monthnames[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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// for some systems sprintf, time_t etc. is in namespace std
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using namespace std;
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time_t tt = time(0);
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struct tm *tb = 0;
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if (tt != (time_t)-1) {
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tb = localtime (&tt);
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datestr_ = strconv((boost::format("\"%s %2d %4d\"")
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% monthnames[tb->tm_mon]
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% tb->tm_mday
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% (tb->tm_year + 1900)).str());
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}
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else {
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datestr_ = "\"??? ?? ????\"";
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}
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}
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void reset_timestr()
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{
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// for some systems sprintf, time_t etc. is in namespace std
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using namespace std;
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time_t tt = time(0);
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struct tm *tb = 0;
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if (tt != (time_t)-1) {
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tb = localtime (&tt);
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timestr_ = strconv((boost::format("\"%02d:%02d:%02d\"")
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% tb->tm_hour
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% tb->tm_min
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% tb->tm_sec).str());
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}
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else {
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timestr_ = "\"??:??:??\"";
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}
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}
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void reset_version()
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{
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// for some systems sprintf, time_t etc. is in namespace std
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using namespace std;
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// calculate the number of days since Dec 13 2001
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// (the day the Wave project was started)
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tm first_day;
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using namespace std; // for some systems memset is in namespace std
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memset (&first_day, 0, sizeof(tm));
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first_day.tm_mon = 11; // Dec
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first_day.tm_mday = 13; // 13
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first_day.tm_year = 101; // 2001
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long seconds = long(difftime(compilation_time_.get_time(), mktime(&first_day)));
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version_ = strconv((boost::format("0x%02d%1d%1d%04ld")
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% BOOST_WAVE_VERSION_MAJOR
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% BOOST_WAVE_VERSION_MINOR
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% BOOST_WAVE_VERSION_SUBMINOR
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% (seconds/(3600*24))).str());
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}
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void reset_versionstr()
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{
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// for some systems sprintf, time_t etc. is in namespace std
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using namespace std;
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// calculate the number of days since Dec 13 2001
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// (the day the Wave project was started)
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tm first_day;
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memset (&first_day, 0, sizeof(tm));
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first_day.tm_mon = 11; // Dec
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first_day.tm_mday = 13; // 13
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first_day.tm_year = 101; // 2001
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long seconds = long(difftime(compilation_time_.get_time(), mktime(&first_day)));
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versionstr_ = strconv((boost::format("\"%d.%d.%d.%ld [%s/%s]\"")
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% BOOST_WAVE_VERSION_MAJOR
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% BOOST_WAVE_VERSION_MINOR
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% BOOST_WAVE_VERSION_SUBMINOR
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% (seconds/(3600*24))
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% BOOST_PLATFORM
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% BOOST_COMPILER).str());
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}
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// dynamic predefined macros
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string_type get_date() const { return datestr_; } // __DATE__
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string_type get_time() const { return timestr_; } // __TIME__
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// __SPIRIT_PP__/__WAVE__
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string_type get_version() const
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{
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return strconv((boost::format("0x%02d%1d%1d")
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% BOOST_WAVE_VERSION_MAJOR
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% BOOST_WAVE_VERSION_MINOR
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% BOOST_WAVE_VERSION_SUBMINOR).str());
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}
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// __WAVE_CONFIG__
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string_type get_config() const
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{
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return strconv((boost::format("0x%08x") % BOOST_WAVE_CONFIG).str());
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}
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public:
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predefined_macros()
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: compilation_time_(__DATE__ " " __TIME__)
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{
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reset();
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reset_version();
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reset_versionstr();
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}
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void reset()
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{
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reset_datestr();
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reset_timestr();
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}
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// __SPIRIT_PP_VERSION__/__WAVE_VERSION__
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string_type get_fullversion() const { return version_; }
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// __SPIRIT_PP_VERSION_STR__/__WAVE_VERSION_STR__
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string_type get_versionstr() const { return versionstr_; }
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// C++ mode
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static_macros const& static_data_cpp(std::size_t i) const
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{
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static static_macros data[] = {
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{ "__STDC__", T_INTLIT, "1" },
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{ "__cplusplus", T_INTLIT, "199711L" },
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{ 0, T_EOF, 0 }
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};
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BOOST_ASSERT(i < sizeof(data)/sizeof(data[0]));
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return data[i];
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}
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#if BOOST_WAVE_SUPPORT_CPP0X != 0
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// C++11 mode
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static_macros const& static_data_cpp0x(std::size_t i) const
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{
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static static_macros data[] = {
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{ "__STDC__", T_INTLIT, "1" },
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{ "__cplusplus", T_INTLIT, "201103L" },
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{ "__STDC_VERSION__", T_INTLIT, "199901L" },
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{ "__STDC_HOSTED__", T_INTLIT, "0" },
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{ "__WAVE_HAS_VARIADICS__", T_INTLIT, "1" },
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{ 0, T_EOF, 0 }
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};
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BOOST_ASSERT(i < sizeof(data)/sizeof(data[0]));
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return data[i];
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}
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#endif
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#if BOOST_WAVE_SUPPORT_CPP2A != 0
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// C++20 mode
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static_macros const& static_data_cpp2a(std::size_t i) const
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{
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static static_macros data[] = {
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{ "__STDC__", T_INTLIT, "1" },
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{ "__cplusplus", T_INTLIT, "202002L" },
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{ "__STDC_VERSION__", T_INTLIT, "199901L" },
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{ "__STDC_HOSTED__", T_INTLIT, "0" },
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{ "__WAVE_HAS_VARIADICS__", T_INTLIT, "1" },
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{ 0, T_EOF, 0 }
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};
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BOOST_ASSERT(i < sizeof(data)/sizeof(data[0]));
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return data[i];
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}
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#endif
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#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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// C99 mode
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static_macros const& static_data_c99(std::size_t i) const
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{
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static static_macros data[] = {
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{ "__STDC__", T_INTLIT, "1" },
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{ "__STDC_VERSION__", T_INTLIT, "199901L" },
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{ "__STDC_HOSTED__", T_INTLIT, "0" },
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{ "__WAVE_HAS_VARIADICS__", T_INTLIT, "1" },
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{ 0, T_EOF, 0 }
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};
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BOOST_ASSERT(i < sizeof(data)/sizeof(data[0]));
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return data[i];
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}
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#endif
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dynamic_macros const& dynamic_data(std::size_t i) const
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{
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static dynamic_macros data[] = {
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{ "__DATE__", T_STRINGLIT, &predefined_macros::get_date },
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{ "__TIME__", T_STRINGLIT, &predefined_macros::get_time },
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{ "__SPIRIT_PP__", T_INTLIT, &predefined_macros::get_version },
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{ "__SPIRIT_PP_VERSION__", T_INTLIT, &predefined_macros::get_fullversion },
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{ "__SPIRIT_PP_VERSION_STR__", T_STRINGLIT, &predefined_macros::get_versionstr },
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{ "__WAVE__", T_INTLIT, &predefined_macros::get_version },
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{ "__WAVE_VERSION__", T_INTLIT, &predefined_macros::get_fullversion },
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{ "__WAVE_VERSION_STR__", T_STRINGLIT, &predefined_macros::get_versionstr },
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{ "__WAVE_CONFIG__", T_INTLIT, &predefined_macros::get_config },
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{ 0, T_EOF, 0 }
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};
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BOOST_ASSERT(i < sizeof(data)/sizeof(data[0]));
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return data[i];
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}
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}; // predefined_macros
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///////////////////////////////////////////////////////////////////////////////
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} // namespace util
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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(BOOST_CPP_MACROMAP_PREDEF_HPP_HK041119)
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