32 Commits

Author SHA1 Message Date
Howard Hinnant
c7e5a4d08e Add posix-style time zone example: ptz.h 2017-12-03 14:40:01 -05:00
Howard Hinnant
a3e8f399c4 ifdef out clock_cast for VC-2017 and earlier
* Clients report it can't handle the C++11
* Triggered to be enabled on VC-number-next
* Deprecated API (to_xxx_time) rewritten to be independent of
  clock_cast.
* Whitespace changes to bring column length down to 90.
2017-11-30 15:40:37 -05:00
Howard Hinnant
443a29df53 Improve range check on year
* The previous fix broke parsing of sub-date quantities such as
  durations.
2017-11-30 12:06:51 -05:00
Howard Hinnant
1902b8e8fb Range check year on parse 2017-11-30 10:45:30 -05:00
Howard Hinnant
c513a20691 Fix off-by-one bug in iso_week::year_lastweek_weekday
* The conversion from year_lastweek_weekday to sys_days
  and local_days had an off by one error.
* Added test for this case.
2017-11-30 10:28:14 -05:00
Howard Hinnant
9b88763dbf Remove noexcept from tai_clock::now() and gps_clock::now()
*  These functions may try to initialize the tzdb which
   could fail.
2017-11-26 21:24:45 -05:00
Howard Hinnant
15a63ec819 Updated on behalf of schmidt9 2017-11-26 14:41:40 -05:00
Tomasz Kamiński
543315b700 Reversed order of arguments to clock_time_conversion.
Now the order of argument matches the clock_cast function.
The test only is_clock_castable trait still matches is_convertible
order of arguments.
2017-11-26 13:50:21 -05:00
Tomasz Kamiński
7c69f1570d Changed invocation to match specification
Slight difference between invocation on lvalue of clock_time_conversion
object and prvalue.
2017-11-25 22:01:12 +01:00
Tomasz Kamiński
b13c859ff1 Restored deprecated to_clock_time function.
Fixed the to_utc_time(const gps_time<Duration>& t) function
to correctly use clock_cast<utc_time>.

Added test to deprecated functions.
2017-11-24 23:37:32 +01:00
Tomasz Kamiński
d4592bd497 Maked clock_time_conversion as const and used alias.
Marked operator() of all supplied clock_time_conversion overload
as const.
Changed input type to sys_time/utc_time alias when possible.
Used consitient nomencalture: st for sys_time, ut for utc_time
and tp for time in different clock.
2017-11-24 23:26:56 +01:00
Tomasz Kamiński
58a4a9518a Mismatch in return type of converting function is now hard error.
Change the implementation, in the way that mismatch in return
type of the from/to_sys/utc functions (not returning time_point,
or returning time_point with inappropriate clock) leads to
hard error.

Added appropariate fail test for to_sys function, including:
* returning an int
* returning time_point of wrong clock
* reutrning reference to time_point
2017-11-24 22:23:50 +01:00
Tomasz Kamiński
e1099ef3ab Implemented clock_cast function.
Added an clock_time_conversion trait, that should be specialized
with SourceClock and DestClock respectively and provide an function
that convert time_point in SourceClock to equivalent time_point
in DestClock.

This function has following specializations:
1) <sys_clock, utc_clock> - convert sys_time to utc_time
2) <utc_clock, sys_clock> - convert utc_time to sys_time
3) <Clock, sys_clock>     - calls Clock::to_sys if it returns sys_time
4) <Clock, utc_clock>     - calls Clock::to_utc if it returns utc_time
5) <sys_clock, Clock>     - calls Clock::from_sys if it returns time_point<Clock>
5) <utc_clock, Clock>     - calls Clock::from_utc if it returns time_point<Clock>

Implemented an clock_cast<DestClock>(time_point<SourceClock, Dur> st), that
works as follow:
1) If DestClock is same as SourceClock, returns std
2) Otherwise, if clock_conversion<SourceClock, DestClock> available, uses it
3) Otherwise, if tries using clock_conversion<SourceClock, CommClock>
   and clock_conversion<CommClock, DestClock> for CommClock being utc_time
   or sys_time
4) Otherwise, tries using clock_conversion<SourceClock, utc_clock>
   and clock_conversion<sys_clock, DestinationClock> or reversed (firstly
   convert to sys_clock, then to utc_clock) to convert.
2017-11-24 17:55:15 +01:00
Howard Hinnant
c286981b3b Fix improper application of GCC diagnostic suppression 2017-11-21 10:07:31 -05:00
Howard Hinnant
9ca582d9da Silence GCC conversion warning for bitfields
* Used only in weekday_indexed.
2017-11-20 14:50:48 -05:00
Tullio Menga
f4b12ab023 Adjust HAS_CHRONO_ROUNDING macro for MSVC with v140_clang_c2 and LLVM-vs2014 2017-11-20 11:45:04 -05:00
Alexander Karatarakis
bd51baf31e msvc token workaround 2017-11-19 18:52:56 -05:00
Howard Hinnant
d97bc984c7 Change default_zone from "UTC" to "Etc/UTC"
* zoned_traits<const time_zone*>::default_zone()
  should not depend on a Link, but on a Zone.
2017-11-19 18:17:09 -05:00
Howard Hinnant
4832ea0ddb Move HAS_STRING_VIEW to date.h 2017-11-17 11:09:17 -05:00
Tullio Menga
ec514101a6 minor patches to build on Windows with MSVC v140_clang_c2 and LLVM-vs2014 2017-11-15 07:20:07 -05:00
Howard Hinnant
e12f7c66f0 Unconstrain make_zoned for VS-2015 2017-11-07 13:01:16 -07:00
Howard Hinnant
3a5e8c9384 Silence clang warning 2017-10-30 13:48:09 -04:00
Howard Hinnant
fa6529a2fc Allow zoned_time conversion among different TimeZonePtr types 2017-10-28 18:20:34 -04:00
Howard Hinnant
25696b7fb3 Optimize to_stream for zoned_time
* Decrease the number of lookups in the database from 2 to 1.
2017-10-24 15:44:41 -04:00
Howard Hinnant
9381e894a5 Specify exception constructors
* For nonexistent_local_time and ambiguous_local_time.
* Simplify the constructors.
* Make these exceptions usable for custom time zones.
2017-10-24 12:12:31 -04:00
Pavel Davydov
202041e531 Add a workaround for a missing operator<< for gcc 5 on linux. See issue #205 for details. 2017-10-24 11:02:54 -04:00
Howard Hinnant
66a97f907e to_stream sets failbit if required to supply a bad name:
* for an invalid month
* for an invalid weekday
2017-10-15 13:57:19 -04:00
Howard Hinnant
f328d8c84a Have format set exceptions(failbit | badbit)
*  Be sure if something bad happens under the hood it is not silently
   swallowed.
2017-10-14 20:42:26 -04:00
Manlio Morini
8b9f0515b5 Replacing 0 with nullptr to avoid GCC warning
All the calls to `std::time_get::get` had `0` as end-of-range iterator.

E.g.

    auto& f = use_facet<time_get<CharT>>(is.getloc());
	// ...
    f.get(is, 0, is, err, &tm, command, fmt+1);
              ^

Using `nullptr` instead of `0` doesn't trigger the GCC 5.x warning:

> warning: zero as null pointer constant [-Wzero-as-null-pointer-constant]
2017-10-12 19:51:06 +02:00
Tomi Valkeinen
2032fccbb7 Fix valgrind warning about uninitialized variable use in to_stream()
tm variable is not initialized in to_stream(), and valgrind warns about
"Conditional jump or move depends on uninitialised value(s)".

This is a false positive, as strftime always reads tm_hour, even if it
ends up never using it. To silence the warnings, initialize tm to zero.
2017-10-03 15:22:49 -04:00
Howard Hinnant
3acb299f3f Rename TZ_DB to tzdb
* Bring into alignment with proposal
* TZ_DB alias left behind for backwards compatibility
2017-09-30 14:48:25 -04:00
Markus Werle
3c3ba68906 Proposal for an alternative directory structure 2017-09-22 20:03:16 -04:00