/
time_point_io.hpp
1249 lines (1150 loc) · 40.5 KB
/
time_point_io.hpp
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// (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/core/no_exceptions_support.hpp>
#include <cstring>
#include <locale>
#include <ctime>
#if ( defined BOOST_WINDOWS && ! defined(__CYGWIN__) ) \
|| (defined(sun) || defined(__sun)) \
|| (defined __IBMCPP__) \
|| defined __ANDROID__ \
|| defined __QNXNTO__ \
|| (defined(_AIX) && defined __GNUC__)
#define BOOST_CHRONO_INTERNAL_TIMEGM
#endif
#if (defined BOOST_WINDOWS && ! defined(__CYGWIN__)) \
|| ( (defined(sun) || defined(__sun)) && defined __GNUC__) \
|| (defined __IBMCPP__) \
|| defined __ANDROID__ \
|| (defined(_AIX) && defined __GNUC__)
#define BOOST_CHRONO_INTERNAL_GMTIME
#endif
#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);
if (!(err & std::ios_base::failbit) && 1 <= t && t <= 12)
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) && 1 <= t && t <= 366)
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;
typedef std::ios_base 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<CharT>(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_(get_time_fmt<CharT>(s_save_))
{
set_time_fmt(s_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(s_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_(get_timezone(s_save_))
{
set_timezone(s_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 (const 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 (const 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 defined 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 int32_t 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__)
#if BOOST_MSVC < 1400 // localtime_s doesn't exist in vc7.1
std::tm *tmp = 0;
if ((tmp=localtime(&t)) == 0)
failed = true;
else
tm =*tmp;
# else
if (localtime_s(&tm, &t) != 0) failed = true;
# endif
#else
if (localtime_r(&t, &tm) == 0) failed = true;
#endif
}
else
{
#if defined 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";