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Diffstat (limited to 'boost/chrono/io/time_point_io.hpp')
| -rw-r--r-- | boost/chrono/io/time_point_io.hpp | 1239 |
1 files changed, 1239 insertions, 0 deletions
diff --git a/boost/chrono/io/time_point_io.hpp b/boost/chrono/io/time_point_io.hpp new file mode 100644 index 0000000000..629479cde9 --- /dev/null +++ b/boost/chrono/io/time_point_io.hpp @@ -0,0 +1,1239 @@ +// (C) Copyright Howard Hinnant +// (C) Copyright 2010-2011 Vicente J. Botet Escriba +// Use, modification and distribution are subject to 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). + +//===-------------------------- locale ------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// This code was adapted by Vicente from Howard Hinnant's experimental work +// on chrono i/o to Boost and some functions from libc++/locale to emulate the missing time_get::get() + +#ifndef BOOST_CHRONO_IO_TIME_POINT_IO_HPP +#define BOOST_CHRONO_IO_TIME_POINT_IO_HPP + +#include <boost/chrono/io/time_point_put.hpp> +#include <boost/chrono/io/time_point_get.hpp> +#include <boost/chrono/io/duration_io.hpp> +#include <boost/chrono/io/ios_base_state.hpp> +#include <boost/chrono/io/utility/manip_base.hpp> +#include <boost/chrono/time_point.hpp> +#include <boost/chrono/clock_string.hpp> +#include <boost/chrono/round.hpp> +#include <boost/chrono/detail/scan_keyword.hpp> +#include <boost/static_assert.hpp> +#include <boost/detail/no_exceptions_support.hpp> +#include <cstring> +#include <locale> +#include <ctime> + +#define BOOST_CHRONO_INTERNAL_TIMEGM \ + ( defined BOOST_WINDOWS && ! defined(__CYGWIN__) ) \ + || (defined(sun) || defined(__sun)) \ + || (defined __IBMCPP__) \ + || defined __ANDROID__ \ + || defined __QNXNTO__ \ + || (defined(_AIX) && defined __GNUC__) + +#define BOOST_CHRONO_INTERNAL_GMTIME \ + (defined BOOST_WINDOWS && ! defined(__CYGWIN__)) \ + || ( (defined(sun) || defined(__sun)) && defined __GNUC__) \ + || (defined __IBMCPP__) \ + || defined __ANDROID__ \ + || (defined(_AIX) && defined __GNUC__) + +#define BOOST_CHRONO_USES_INTERNAL_TIME_GET + +namespace boost +{ + namespace chrono + { + typedef double fractional_seconds; + namespace detail + { + + + template <class CharT, class InputIterator = std::istreambuf_iterator<CharT> > + struct time_get + { + std::time_get<CharT> const &that_; + time_get(std::time_get<CharT> const& that) : that_(that) {} + + typedef std::time_get<CharT> facet; + typedef typename facet::iter_type iter_type; + typedef typename facet::char_type char_type; + typedef std::basic_string<char_type> string_type; + + static int + get_up_to_n_digits( + InputIterator& b, InputIterator e, + std::ios_base::iostate& err, + const std::ctype<CharT>& ct, + int n) + { + // Precondition: n >= 1 + if (b == e) + { + err |= std::ios_base::eofbit | std::ios_base::failbit; + return 0; + } + // get first digit + CharT c = *b; + if (!ct.is(std::ctype_base::digit, c)) + { + err |= std::ios_base::failbit; + return 0; + } + int r = ct.narrow(c, 0) - '0'; + for (++b, --n; b != e && n > 0; ++b, --n) + { + // get next digit + c = *b; + if (!ct.is(std::ctype_base::digit, c)) + return r; + r = r * 10 + ct.narrow(c, 0) - '0'; + } + if (b == e) + err |= std::ios_base::eofbit; + return r; + } + + + void get_day( + int& d, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2); + if (!(err & std::ios_base::failbit) && 1 <= t && t <= 31) + d = t; + else + err |= std::ios_base::failbit; + } + + void get_month( + int& m, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2) - 1; + if (!(err & std::ios_base::failbit) && t <= 11) + m = t; + else + err |= std::ios_base::failbit; + } + + + void get_year4(int& y, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 4); + if (!(err & std::ios_base::failbit)) + y = t - 1900; + } + + void + get_hour(int& h, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2); + if (!(err & std::ios_base::failbit) && t <= 23) + h = t; + else + err |= std::ios_base::failbit; + } + + void + get_minute(int& m, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2); + if (!(err & std::ios_base::failbit) && t <= 59) + m = t; + else + err |= std::ios_base::failbit; + } + + void get_second(int& s, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2); + if (!(err & std::ios_base::failbit) && t <= 60) + s = t; + else + err |= std::ios_base::failbit; + } + + void get_white_space(iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + for (; b != e && ct.is(std::ctype_base::space, *b); ++b) + ; + if (b == e) + err |= std::ios_base::eofbit; + } + + void get_12_hour(int& h, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 2); + if (!(err & std::ios_base::failbit) && 1 <= t && t <= 12) + h = t; + else + err |= std::ios_base::failbit; + } + + void get_percent(iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + if (b == e) + { + err |= std::ios_base::eofbit | std::ios_base::failbit; + return; + } + if (ct.narrow(*b, 0) != '%') + err |= std::ios_base::failbit; + else if(++b == e) + err |= std::ios_base::eofbit; + } + + void get_day_year_num(int& d, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 3); + if (!(err & std::ios_base::failbit) && t <= 365) + d = t; + else + err |= std::ios_base::failbit; + } + + void + get_weekday(int& w, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + int t = get_up_to_n_digits(b, e, err, ct, 1); + if (!(err & std::ios_base::failbit) && t <= 6) + w = t; + else + err |= std::ios_base::failbit; + } +#if 0 + + void + get_am_pm(int& h, + iter_type& b, iter_type e, + std::ios_base::iostate& err, + const std::ctype<char_type>& ct) const + { + const string_type* ap = am_pm(); + if (ap[0].size() + ap[1].size() == 0) + { + err |= ios_base::failbit; + return; + } + ptrdiff_t i = detail::scan_keyword(b, e, ap, ap+2, ct, err, false) - ap; + if (i == 0 && h == 12) + h = 0; + else if (i == 1 && h < 12) + h += 12; + } + +#endif + + InputIterator get( + iter_type b, iter_type e, + std::ios_base& iob, + std::ios_base::iostate& err, + std::tm* tm, + char fmt, char) const + { + err = std::ios_base::goodbit; + const std::ctype<char_type>& ct = std::use_facet<std::ctype<char_type> >(iob.getloc()); + + switch (fmt) + { + case 'a': + case 'A': + { + std::tm tm2; + std::memset(&tm2, 0, sizeof(std::tm)); + that_.get_weekday(b, e, iob, err, &tm2); + //tm->tm_wday = tm2.tm_wday; + } + break; + case 'b': + case 'B': + case 'h': + { + std::tm tm2; + std::memset(&tm2, 0, sizeof(std::tm)); + that_.get_monthname(b, e, iob, err, &tm2); + //tm->tm_mon = tm2.tm_mon; + } + break; +// case 'c': +// { +// const string_type& fm = c(); +// b = get(b, e, iob, err, tm, fm.data(), fm.data() + fm.size()); +// } +// break; + case 'd': + case 'e': + get_day(tm->tm_mday, b, e, err, ct); + break; + case 'D': + { + const char_type fm[] = {'%', 'm', '/', '%', 'd', '/', '%', 'y'}; + b = get(b, e, iob, err, tm, fm, fm + sizeof(fm)/sizeof(fm[0])); + } + break; + case 'F': + { + const char_type fm[] = {'%', 'Y', '-', '%', 'm', '-', '%', 'd'}; + b = get(b, e, iob, err, tm, fm, fm + sizeof(fm)/sizeof(fm[0])); + } + break; + case 'H': + get_hour(tm->tm_hour, b, e, err, ct); + break; + case 'I': + get_12_hour(tm->tm_hour, b, e, err, ct); + break; + case 'j': + get_day_year_num(tm->tm_yday, b, e, err, ct); + break; + case 'm': + get_month(tm->tm_mon, b, e, err, ct); + break; + case 'M': + get_minute(tm->tm_min, b, e, err, ct); + break; + case 'n': + case 't': + get_white_space(b, e, err, ct); + break; +// case 'p': +// get_am_pm(tm->tm_hour, b, e, err, ct); +// break; + case 'r': + { + const char_type fm[] = {'%', 'I', ':', '%', 'M', ':', '%', 'S', ' ', '%', 'p'}; + b = get(b, e, iob, err, tm, fm, fm + sizeof(fm)/sizeof(fm[0])); + } + break; + case 'R': + { + const char_type fm[] = {'%', 'H', ':', '%', 'M'}; + b = get(b, e, iob, err, tm, fm, fm + sizeof(fm)/sizeof(fm[0])); + } + break; + case 'S': + get_second(tm->tm_sec, b, e, err, ct); + break; + case 'T': + { + const char_type fm[] = {'%', 'H', ':', '%', 'M', ':', '%', 'S'}; + b = get(b, e, iob, err, tm, fm, fm + sizeof(fm)/sizeof(fm[0])); + } + break; + case 'w': + { + get_weekday(tm->tm_wday, b, e, err, ct); + } + break; + case 'x': + return that_.get_date(b, e, iob, err, tm); +// case 'X': +// return that_.get_time(b, e, iob, err, tm); +// { +// const string_type& fm = X(); +// b = that_.get(b, e, iob, err, tm, fm.data(), fm.data() + fm.size()); +// } +// break; +// case 'y': +// get_year(tm->tm_year, b, e, err, ct); + break; + case 'Y': + get_year4(tm->tm_year, b, e, err, ct); + break; + case '%': + get_percent(b, e, err, ct); + break; + default: + err |= std::ios_base::failbit; + } + return b; + } + + + InputIterator get( + iter_type b, iter_type e, + std::ios_base& iob, + std::ios_base::iostate& err, std::tm* tm, + const char_type* fmtb, const char_type* fmte) const + { + const std::ctype<char_type>& ct = std::use_facet<std::ctype<char_type> >(iob.getloc()); + err = std::ios_base::goodbit; + while (fmtb != fmte && err == std::ios_base::goodbit) + { + if (b == e) + { + err = std::ios_base::failbit; + break; + } + if (ct.narrow(*fmtb, 0) == '%') + { + if (++fmtb == fmte) + { + err = std::ios_base::failbit; + break; + } + char cmd = ct.narrow(*fmtb, 0); + char opt = '\0'; + if (cmd == 'E' || cmd == '0') + { + if (++fmtb == fmte) + { + err = std::ios_base::failbit; + break; + } + opt = cmd; + cmd = ct.narrow(*fmtb, 0); + } + b = get(b, e, iob, err, tm, cmd, opt); + ++fmtb; + } + else if (ct.is(std::ctype_base::space, *fmtb)) + { + for (++fmtb; fmtb != fmte && ct.is(std::ctype_base::space, *fmtb); ++fmtb) + ; + for ( ; b != e && ct.is(std::ctype_base::space, *b); ++b) + ; + } + else if (ct.toupper(*b) == ct.toupper(*fmtb)) + { + ++b; + ++fmtb; + } + else + err = std::ios_base::failbit; + } + if (b == e) + err |= std::ios_base::eofbit; + return b; + } + + }; + + + template <class CharT> + class time_manip: public manip<time_manip<CharT> > + { + std::basic_string<CharT> fmt_; + timezone tz_; + public: + + time_manip(timezone tz, std::basic_string<CharT> fmt) + // todo move semantics + : + fmt_(fmt), tz_(tz) + { + } + + /** + * Change the timezone and time format ios state; + */ + void operator()(std::ios_base &ios) const + { + set_time_fmt<CharT> (ios, fmt_); + set_timezone(ios, tz_); + } + }; + + class time_man: public manip<time_man> + { + timezone tz_; + public: + + time_man(timezone tz) + // todo move semantics + : + tz_(tz) + { + } + + /** + * Change the timezone and time format ios state; + */ + void operator()(std::ios_base &ios) const + { + //set_time_fmt<typename out_stream::char_type>(ios, ""); + set_timezone(ios, tz_); + } + }; + + } + + template <class CharT> + inline detail::time_manip<CharT> time_fmt(timezone tz, const CharT* fmt) + { + return detail::time_manip<CharT>(tz, fmt); + } + + template <class CharT> + inline detail::time_manip<CharT> time_fmt(timezone tz, std::basic_string<CharT> fmt) + { + // todo move semantics + return detail::time_manip<CharT>(tz, fmt); + } + + inline detail::time_man time_fmt(timezone f) + { + return detail::time_man(f); + } + + /** + * time_fmt_io_saver i/o saver. + * + * See Boost.IO i/o state savers for a motivating compression. + */ + template <typename CharT = char, typename Traits = std::char_traits<CharT> > + struct time_fmt_io_saver + { + + //! the type of the state to restore + typedef std::basic_ostream<CharT, Traits> state_type; + //! the type of aspect to save + typedef std::basic_string<CharT, Traits> aspect_type; + + /** + * Explicit construction from an i/o stream. + * + * Store a reference to the i/o stream and the value of the associated @c time format . + */ + explicit time_fmt_io_saver(state_type &s) : + s_save_(s), a_save_(get_time_fmt(s_save_)) + { + } + + /** + * Construction from an i/o stream and a @c time format to restore. + * + * Stores a reference to the i/o stream and the value @c new_value to restore given as parameter. + */ + time_fmt_io_saver(state_type &s, aspect_type new_value) : + s_save_(s), a_save_(new_value) + { + } + + /** + * Destructor. + * + * Restores the i/o stream with the format to be restored. + */ + ~time_fmt_io_saver() + { + this->restore(); + } + + /** + * Restores the i/o stream with the time format to be restored. + */ + void restore() + { + set_time_fmt(a_save_, a_save_); + } + private: + state_type& s_save_; + aspect_type a_save_; + }; + + /** + * timezone_io_saver i/o saver. + * + * See Boost.IO i/o state savers for a motivating compression. + */ + struct timezone_io_saver + { + + //! the type of the state to restore + typedef std::ios_base state_type; + //! the type of aspect to save + typedef timezone aspect_type; + + /** + * Explicit construction from an i/o stream. + * + * Store a reference to the i/o stream and the value of the associated @c timezone. + */ + explicit timezone_io_saver(state_type &s) : + s_save_(s), a_save_(get_timezone(s_save_)) + { + } + + /** + * Construction from an i/o stream and a @c timezone to restore. + * + * Stores a reference to the i/o stream and the value @c new_value to restore given as parameter. + */ + timezone_io_saver(state_type &s, aspect_type new_value) : + s_save_(s), a_save_(new_value) + { + } + + /** + * Destructor. + * + * Restores the i/o stream with the format to be restored. + */ + ~timezone_io_saver() + { + this->restore(); + } + + /** + * Restores the i/o stream with the timezone to be restored. + */ + void restore() + { + set_timezone(s_save_, a_save_); + } + private: + timezone_io_saver& operator=(timezone_io_saver const& rhs) ; + + state_type& s_save_; + aspect_type a_save_; + }; + + /** + * + * @param os + * @param tp + * @Effects Behaves as a formatted output function. After constructing a @c sentry object, if the @ sentry + * converts to true, calls to @c facet.put(os,os,os.fill(),tp) where @c facet is the @c time_point_put<CharT> + * facet associated to @c os or a new created instance of the default @c time_point_put<CharT> facet. + * @return @c os. + */ + template <class CharT, class Traits, class Clock, class Duration> + std::basic_ostream<CharT, Traits>& + operator<<(std::basic_ostream<CharT, Traits>& os, const time_point<Clock, Duration>& tp) + { + + bool failed = false; + BOOST_TRY + { + std::ios_base::iostate err = std::ios_base::goodbit; + BOOST_TRY + { + typename std::basic_ostream<CharT, Traits>::sentry opfx(os); + if (bool(opfx)) + { + if (!std::has_facet<time_point_put<CharT> >(os.getloc())) + { + if (time_point_put<CharT> ().put(os, os, os.fill(), tp) .failed()) + { + err = std::ios_base::badbit; + } + } + else + { + if (std::use_facet<time_point_put<CharT> >(os.getloc()) .put(os, os, os.fill(), tp).failed()) + { + err = std::ios_base::badbit; + } + } + os.width(0); + } + } + BOOST_CATCH (...) + { + bool flag = false; + BOOST_TRY + { + os.setstate(std::ios_base::failbit); + } + BOOST_CATCH (std::ios_base::failure ) + { + flag = true; + } + BOOST_CATCH_END + if (flag) throw; + } + BOOST_CATCH_END + if (err) os.setstate(err); + return os; + } + BOOST_CATCH (...) + { + failed = true; + } + BOOST_CATCH_END + if (failed) os.setstate(std::ios_base::failbit | std::ios_base::badbit); + return os; + } + + template <class CharT, class Traits, class Clock, class Duration> + std::basic_istream<CharT, Traits>& + operator>>(std::basic_istream<CharT, Traits>& is, time_point<Clock, Duration>& tp) + { + std::ios_base::iostate err = std::ios_base::goodbit; + + BOOST_TRY + { + typename std::basic_istream<CharT, Traits>::sentry ipfx(is); + if (bool(ipfx)) + { + if (!std::has_facet<time_point_get<CharT> >(is.getloc())) + { + time_point_get<CharT> ().get(is, std::istreambuf_iterator<CharT, Traits>(), is, err, tp); + } + else + { + std::use_facet<time_point_get<CharT> >(is.getloc()).get(is, std::istreambuf_iterator<CharT, Traits>(), is, + err, tp); + } + } + } + BOOST_CATCH (...) + { + bool flag = false; + BOOST_TRY + { + is.setstate(std::ios_base::failbit); + } + BOOST_CATCH (std::ios_base::failure ) + { + flag = true; + } + BOOST_CATCH_END + if (flag) throw; + } + BOOST_CATCH_END + if (err) is.setstate(err); + return is; + } + + + namespace detail + { + +//#if BOOST_CHRONO_INTERNAL_TIMEGM + + inline int32_t is_leap(int32_t year) + { + if(year % 400 == 0) + return 1; + if(year % 100 == 0) + return 0; + if(year % 4 == 0) + return 1; + return 0; + } + inline int32_t days_from_0(int32_t year) + { + year--; + return 365 * year + (year / 400) - (year/100) + (year / 4); + } + inline int32_t days_from_1970(int32_t year) + { + static const int days_from_0_to_1970 = days_from_0(1970); + return days_from_0(year) - days_from_0_to_1970; + } + inline int32_t days_from_1jan(int32_t year,int32_t month,int32_t day) + { + static const int32_t days[2][12] = + { + { 0,31,59,90,120,151,181,212,243,273,304,334}, + { 0,31,60,91,121,152,182,213,244,274,305,335} + }; + + return days[is_leap(year)][month-1] + day - 1; + } + + inline time_t internal_timegm(std::tm const *t) + { + int year = t->tm_year + 1900; + int month = t->tm_mon; + if(month > 11) + { + year += month/12; + month %= 12; + } + else if(month < 0) + { + int years_diff = (-month + 11)/12; + year -= years_diff; + month+=12 * years_diff; + } + month++; + int day = t->tm_mday; + int day_of_year = days_from_1jan(year,month,day); + int days_since_epoch = days_from_1970(year) + day_of_year ; + + time_t seconds_in_day = 3600 * 24; + time_t result = seconds_in_day * days_since_epoch + 3600 * t->tm_hour + 60 * t->tm_min + t->tm_sec; + + return result; + } +//#endif + + /** + * from_ymd could be made more efficient by using a table + * day_count_table indexed by the y%400. + * This table could contain the day_count + * by*365 + by/4 - by/100 + by/400 + * + * from_ymd = (by/400)*days_by_400_years+day_count_table[by%400] + + * days_in_year_before[is_leap_table[by%400]][m-1] + d; + */ + inline unsigned days_before_years(int32_t y) + { + return y * 365 + y / 4 - y / 100 + y / 400; + } + + // Returns year/month/day triple in civil calendar + // Preconditions: z is number of days since 1970-01-01 and is in the range: + // [numeric_limits<Int>::min(), numeric_limits<Int>::max()-719468]. + template <class Int> + //constexpr + void + inline civil_from_days(Int z, Int& y, unsigned& m, unsigned& d) BOOST_NOEXCEPT + { + BOOST_STATIC_ASSERT_MSG(std::numeric_limits<unsigned>::digits >= 18, + "This algorithm has not been ported to a 16 bit unsigned integer"); + BOOST_STATIC_ASSERT_MSG(std::numeric_limits<Int>::digits >= 20, + "This algorithm has not been ported to a 16 bit signed integer"); + z += 719468; + const Int era = (z >= 0 ? z : z - 146096) / 146097; + const unsigned doe = static_cast<unsigned>(z - era * 146097); // [0, 146096] + const unsigned yoe = (doe - doe/1460 + doe/36524 - doe/146096) / 365; // [0, 399] + y = static_cast<Int>(yoe) + era * 400; + const unsigned doy = doe - (365*yoe + yoe/4 - yoe/100); // [0, 365] + const unsigned mp = (5*doy + 2)/153; // [0, 11] + d = doy - (153*mp+2)/5 + 1; // [1, 31] + m = mp + (mp < 10 ? 3 : -9); // [1, 12] + y += (m <= 2); + --m; + } + inline std::tm * internal_gmtime(std::time_t const* t, std::tm *tm) + { + if (t==0) return 0; + if (tm==0) return 0; + +#if 0 + static const unsigned char + day_of_year_month[2][366] = + { + { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12 }, + + { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12 + + } }; + + static const int32_t days_in_year_before[2][13] = + { + { -1, 30, 58, 89, 119, 150, 180, 211, 242, 272, 303, 333, 364 }, + { -1, 30, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 } + }; +#endif + + const time_t seconds_in_day = 3600 * 24; + int32_t days_since_epoch = static_cast<int32_t>(*t / seconds_in_day); + int32_t hms = static_cast<int32_t>(*t - seconds_in_day*days_since_epoch); + if (hms < 0) { + days_since_epoch-=1; + hms = seconds_in_day+hms; + } + +#if 0 + int32_t x = days_since_epoch; + int32_t y = static_cast<int32_t> (static_cast<long long> (x + 2) * 400 + / 146097); + const int32_t ym1 = y - 1; + int32_t doy = x - days_before_years(y); + const int32_t doy1 = x - days_before_years(ym1); + const int32_t N = std::numeric_limits<int>::digits - 1; + const int32_t mask1 = doy >> N; // arithmetic rshift - not portable - but nearly universal + const int32_t mask0 = ~mask1; + doy = (doy & mask0) | (doy1 & mask1); + y = (y & mask0) | (ym1 & mask1); + //y -= 32767 + 2; + y += 70; + tm->tm_year=y; + const int32_t leap = is_leap(y); + tm->tm_mon = day_of_year_month[leap][doy]-1; + tm->tm_mday = doy - days_in_year_before[leap][tm->tm_mon] ; +#else + int32_t y; + unsigned m, d; + civil_from_days(days_since_epoch, y, m, d); + tm->tm_year=y-1900; tm->tm_mon=m; tm->tm_mday=d; +#endif + + tm->tm_hour = hms / 3600; + const int ms = hms % 3600; + tm->tm_min = ms / 60; + tm->tm_sec = ms % 60; + + tm->tm_isdst = -1; + (void)mktime(tm); + return tm; + } + + } // detail +#ifndef BOOST_CHRONO_NO_UTC_TIMEPOINT + +#if defined BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT + + template <class CharT, class Traits, class Duration> + std::basic_ostream<CharT, Traits>& + operator<<(std::basic_ostream<CharT, Traits>& os, const time_point<system_clock, Duration>& tp) + { + typename std::basic_ostream<CharT, Traits>::sentry ok(os); + if (bool(ok)) + { + bool failed = false; + BOOST_TRY + { + const CharT* pb = 0; //nullptr; + const CharT* pe = pb; + std::basic_string<CharT> fmt = get_time_fmt<CharT> (os); + pb = fmt.data(); + pe = pb + fmt.size(); + + timezone tz = get_timezone(os); + std::locale loc = os.getloc(); + time_t t = system_clock::to_time_t(time_point_cast<system_clock::duration>(tp)); + std::tm tm; + std::memset(&tm, 0, sizeof(std::tm)); + if (tz == timezone::local) + { +#if defined BOOST_WINDOWS && ! defined(__CYGWIN__) + std::tm *tmp = 0; + if ((tmp=localtime(&t)) == 0) + failed = true; + else + tm =*tmp; +#else + if (localtime_r(&t, &tm) == 0) failed = true; +#endif + } + else + { +#if BOOST_CHRONO_INTERNAL_GMTIME + if (detail::internal_gmtime(&t, &tm) == 0) failed = true; + +#elif defined BOOST_WINDOWS && ! defined(__CYGWIN__) + std::tm *tmp = 0; + if((tmp = gmtime(&t)) == 0) + failed = true; + else + tm = *tmp; +#else + if (gmtime_r(&t, &tm) == 0) failed = true; + tm.tm_isdst = -1; + (void)mktime(&tm); + +#endif + + } + if (!failed) + { + const std::time_put<CharT>& tpf = std::use_facet<std::time_put<CharT> >(loc); + if (pb == pe) + { + CharT pattern[] = + { '%', 'Y', '-', '%', 'm', '-', '%', 'd', ' ', '%', 'H', ':', '%', 'M', ':' }; + pb = pattern; + pe = pb + sizeof (pattern) / sizeof(CharT); + failed = tpf.put(os, os, os.fill(), &tm, pb, pe).failed(); + if (!failed) + { + duration<fractional_seconds> d = tp - system_clock::from_time_t(t) + seconds(tm.tm_sec); + if (d.count() < 10) os << CharT('0'); + //if (! os.good()) { + // throw "exception"; + //} + std::ios::fmtflags flgs = os.flags(); + os.setf(std::ios::fixed, std::ios::floatfield); + //if (! os.good()) { + //throw "exception"; + //} + os.precision(9); + os << d.count(); + //if (! os.good()) { + //throw "exception"; + //} + os.flags(flgs); + if (tz == timezone::local) + { + CharT sub_pattern[] = + { ' ', '%', 'z' }; + pb = sub_pattern; + pe = pb + +sizeof (sub_pattern) / sizeof(CharT); + failed = tpf.put(os, os, os.fill(), &tm, pb, pe).failed(); + } + else + { + CharT sub_pattern[] = + { ' ', '+', '0', '0', '0', '0', 0 }; + os << sub_pattern; + } + } + } + else + { + failed = tpf.put(os, os, os.fill(), &tm, pb, pe).failed(); + } + } + } + BOOST_CATCH (...) + { + failed = true; + } + BOOST_CATCH_END + if (failed) + { + os.setstate(std::ios_base::failbit | std::ios_base::badbit); + } + } + return os; + } +#endif + + namespace detail + { + + template <class CharT, class InputIterator> + minutes extract_z(InputIterator& b, InputIterator e, std::ios_base::iostate& err, const std::ctype<CharT>& ct) + { + int min = 0; + if (b != e) + { + char cn = ct.narrow(*b, 0); + if (cn != '+' && cn != '-') + { + err |= std::ios_base::failbit; + return minutes(0); + } + int sn = cn == '-' ? -1 : 1; + int hr = 0; + for (int i = 0; i < 2; ++i) + { + if (++b == e) + { + err |= std::ios_base::eofbit | std::ios_base::failbit; + return minutes(0); + } + cn = ct.narrow(*b, 0); + if (! ('0' <= cn && cn <= '9')) + { + err |= std::ios_base::failbit; + return minutes(0); + } + hr = hr * 10 + cn - '0'; + } + for (int i = 0; i < 2; ++i) + { + if (++b == e) + { + err |= std::ios_base::eofbit | std::ios_base::failbit; + return minutes(0); + } + cn = ct.narrow(*b, 0); + if (! ('0' <= cn && cn <= '9')) + { + err |= std::ios_base::failbit; + return minutes(0); + } + min = min * 10 + cn - '0'; + } + if (++b == e) { + err |= std::ios_base::eofbit; + } + min += hr * 60; + min *= sn; + } + else + { + err |= std::ios_base::eofbit | std::ios_base::failbit; + } + return minutes(min); + } + + } // detail + +#if defined BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT + + template <class CharT, class Traits, class Duration> + std::basic_istream<CharT, Traits>& + operator>>(std::basic_istream<CharT, Traits>& is, time_point<system_clock, Duration>& tp) + { + typename std::basic_istream<CharT, Traits>::sentry ok(is); + if (bool(ok)) + { + std::ios_base::iostate err = std::ios_base::goodbit; + BOOST_TRY + { + const CharT* pb = 0; //nullptr; + const CharT* pe = pb; + std::basic_string<CharT> fmt = get_time_fmt<CharT> (is); + pb = fmt.data(); + pe = pb + fmt.size(); + + timezone tz = get_timezone(is); + std::locale loc = is.getloc(); + const std::time_get<CharT>& tg = std::use_facet<std::time_get<CharT> >(loc); + const std::ctype<CharT>& ct = std::use_facet<std::ctype<CharT> >(loc); + tm tm; // {0} + std::memset(&tm, 0, sizeof(std::tm)); + + typedef std::istreambuf_iterator<CharT, Traits> It; + if (pb == pe) + { + CharT pattern[] = + { '%', 'Y', '-', '%', 'm', '-', '%', 'd', ' ', '%', 'H', ':', '%', 'M', ':' }; + pb = pattern; + pe = pb + sizeof (pattern) / sizeof(CharT); + +#if defined BOOST_CHRONO_USES_INTERNAL_TIME_GET + const detail::time_get<CharT>& dtg(tg); + dtg.get(is, 0, is, err, &tm, pb, pe); +#else + tg.get(is, 0, is, err, &tm, pb, pe); +#endif + if (err & std::ios_base::failbit) goto exit; + fractional_seconds sec; + CharT c = CharT(); + std::ios::fmtflags flgs = is.flags(); + is.setf(std::ios::fixed, std::ios::floatfield); + is.precision(9); + is >> sec; + is.flags(flgs); + if (is.fail()) + { + err |= std::ios_base::failbit; + goto exit; + } + It i(is); + It eof; + c = *i; + if (++i == eof || c != ' ') + { + err |= std::ios_base::failbit; + goto exit; + } + minutes min = detail::extract_z(i, eof, err, ct); + + if (err & std::ios_base::failbit) goto exit; + time_t t; + +#if BOOST_CHRONO_INTERNAL_TIMEGM + t = detail::internal_timegm(&tm); +#else + t = timegm(&tm); +#endif + tp = time_point_cast<Duration>( + system_clock::from_time_t(t) - min + round<system_clock::duration> (duration<fractional_seconds> (sec)) + ); + } + else + { + const CharT z[2] = + { '%', 'z' }; + const CharT* fz = std::search(pb, pe, z, z + 2); +#if defined BOOST_CHRONO_USES_INTERNAL_TIME_GET + const detail::time_get<CharT>& dtg(tg); + dtg.get(is, 0, is, err, &tm, pb, fz); +#else + tg.get(is, 0, is, err, &tm, pb, fz); +#endif + minutes minu(0); + if (fz != pe) + { + if (err != std::ios_base::goodbit) + { + err |= std::ios_base::failbit; + goto exit; + } + It i(is); + It eof; + minu = detail::extract_z(i, eof, err, ct); + if (err & std::ios_base::failbit) goto exit; + if (fz + 2 != pe) + { + if (err != std::ios_base::goodbit) + { + err |= std::ios_base::failbit; + goto exit; + } +#if defined BOOST_CHRONO_USES_INTERNAL_TIME_GET + const detail::time_get<CharT>& dtg(tg); + dtg.get(is, 0, is, err, &tm, fz + 2, pe); +#else + tg.get(is, 0, is, err, &tm, fz + 2, pe); +#endif + if (err & std::ios_base::failbit) goto exit; + } + } + tm.tm_isdst = -1; + time_t t; + if (tz == timezone::utc || fz != pe) + { +#if BOOST_CHRONO_INTERNAL_TIMEGM + t = detail::internal_timegm(&tm); +#else + t = timegm(&tm); +#endif + } + else + { + t = mktime(&tm); + } + tp = time_point_cast<Duration>( + system_clock::from_time_t(t) - minu + ); + } + } + BOOST_CATCH (...) + { + err |= std::ios_base::badbit | std::ios_base::failbit; + } + BOOST_CATCH_END + exit: is.setstate(err); + } + return is; + } + +#endif +#endif //UTC + } // chrono + +} + +#endif // header |