Better than "Clock.currStdTime()/10000000"

[Seb via Digitalmars-d-learn]

On Wednesday, 15 February 2017 at 13:19:57 UTC, berni wrote:
> I need to measure time elapsed in seconds, like this:
>
>> auto start = Clock.currStdTime();
>> // some stuff
>> auto stop = Clock.currStdTime();
>> auto duration = (stop-start)/10000000;
>
> This works, but I wonder if there is something better that 
> using the magic constant 10000000. I read about 10.secs giving 
> the duration of 10 seconds, but I don't understand how to adapt 
> this to my case. I've read the documentation of core.time, 
> std.datetime (and the Introduction to this package) but I can't 
> make head or tail of it.
>
> PS: It's not about benchmarking. I'd like to show the user the 
> time elapsed.

How about something like this:

import std.stdio;

void main()
{
	import core.thread, core.time;
	import std.conv, std.datetime;

	auto start = Clock.currTime;
	Thread.sleep(500.msecs);
         auto diff = Clock.currTime - start;

	diff.writeln; // Duration
	(diff.total!"msecs").writeln;
	(to!("msecs", long) (diff.to!TickDuration)).writeln;
	(to!("msecs", double)(diff. to!TickDuration)).writeln;
}

Note that TickDuration is deprecated.