3party/date: A date and time library based on the C++11/14/17 <chrono> header - date

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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

include/date

Mismatch in return type of converting function is now hard error.

2017-11-24 22:23:50 +01:00

src

Update to accomidate change of iana url #241

2017-11-23 20:25:00 -05:00

test

Mismatch in return type of converting function is now hard error.

2017-11-24 22:23:50 +01:00

LICENSE.txt

Add License file

2017-01-26 19:42:42 -05:00

README.md

Update C++ standards proposal status

2017-11-12 06:27:50 -05:00

README.md

Try it out on wandbox!

This is actually several separate C++11/C++14 libraries:

"date.h" is a header-only library which builds upon <chrono>. It adds some new duration types, and new time_point types. It also adds "field" types such as year_month_day which is a struct {year, month, day}. And it provides convenient means to convert between the "field" types and the time_point types.
- Documentation: http://howardhinnant.github.io/date/date.html
- Video: https://www.youtube.com/watch?v=tzyGjOm8AKo
- Slides: http://schd.ws/hosted_files/cppcon2015/43/hinnant_dates.pdf
"tz.h" / "tz.cpp" are a timezone library built on top of the "date.h" library. This timezone library is a complete parser of the IANA timezone database. It provides for an easy way to access all of the data in this database, using the types from "date.h" and <chrono>. The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well.
"iso_week.h" is a header-only library built on top of the "date.h" library which implements the ISO week date calendar.
- Documentation: http://howardhinnant.github.io/date/iso_week.html
"julian.h" is a header-only library built on top of the "date.h" library which implements a proleptic Julian calendar which is fully interoperable with everything above.
- Documentation: http://howardhinnant.github.io/date/julian.html
"islamic.h" is a header-only library built on top of the "date.h" library which implements a proleptic Islamic calendar which is fully interoperable with everything above.
- Documentation: http://howardhinnant.github.io/date/islamic.html

"date.h" and "tz.h" are now being proposed for standardization:

Current proposal: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0355r4.html
Draft revision: http://howardhinnant.github.io/date/d0355r5.html
Status: The proposal was approved by LEWG and forwarded to LWG with the recommendation of targeting C++20 at the Albuquerque, NM meeting in Nov. 2017.

List of projects using this library:

www.safe.com
www.webtoolkit.eu/wt

If you would like your project (or product) on this list, just let me know.

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