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May 19, 2021
Gravatar of MartinPosted by MartinReply
Martin
Gravatar of Martin


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Hi,

shouldn't the unix time functions be in std.datetime.Date and std.datetime.DateTime instead of std.datetime.SysTime?

The documentation states:

  • "std.datetime.systime for a point in time with a timezone."
  • "std.datetime.date for points in time without timezones."

Unix epoch is 00:00:00 UTC on 1 January 1970 - and UTC is a standard, not a timezone.
if i am not mistaken timezones getting applied on UTC - so i do not understand why the unix time functions are in the modules which are "timezone aware" and not in the modules without a timezone awareness.

May 19, 2021
Gravatar of Ali ÇehreliPosted by Ali Çehreli
in reply to Martin		Reply
Ali Çehreli
Gravatar of Ali Çehreli
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On 5/19/21 12:18 PM, Martin wrote:

> shouldn't the unix time functions be in std.datetime.Date and
> std.datetime.DateTime instead of std.datetime.SysTime?

I wouldn't expect those modules to publicly import unix time function. Such functions are found under the core.sys package:

import std.stdio;
import core.sys.linux.time;

// This is publicly imported by core.sys.linux.time:
// import core.sys.posix.time;

void main() {
  time_t t;
  writeln(time(&t));
  writeln(t);
}

The problem is, the location for these functions are not well documented. So, I simply grep under /usr/include/dmd and it usually works.

Ali