From dgd at list.imaginary.com  Tue Dec 18 08:15:02 2001
From: dgd at list.imaginary.com (Mikael Lind)
Date: Tue Dec 18 08:15:02 2001
Subject: [DGD] Current Time
In-Reply-To: <OE44ESQn34Hzshcv5Mi00002db8@hotmail.com>
Message-ID: <Pine.OSF.4.33.0112181421090.2628-100000@rho005.mtek.chalmers.se>

Quoting Chooser Fireman from 21:59, 2001-12-17:

> Wondering if there was a way to get the current time?
>
> And if there is, is it possible to say add 6 weeks to it or something?

Example code:

void display(string message) {
    /* echo the message to a user, for instance */
    /* ... */
}

void display_time() {
    /*
     * timestamps for present and future use ;D
     *
     * a timestamp is a count of seconds elapsed since 1970-01-01,
     * 00:00:00, a.k.a. the Epoch
     */
    int present, future;

    present = time(); /* get the current time */
    future = present + (6 * 7 * 24 * 60 * 60); /* add six weeks */
    display("The present: " + ctime(present));
    display("The future: " + ctime(future));

    display("I will notify you when the present becomes the future.");
    call_out("display_future", future - present);
}

void display_future() {
    display("The future is here.");
}

So, time() fetches you a timestamp for the present, while ctime()
formats a timestamp into a description.

dgd/doc/kfun/time
dgd/doc/kfun/ctime

If you need higher resolution than seconds, there is also
millitime().

dgd/doc/kfun/millitime

// Mikael / Elemel

--
I embrace my desire to feel the rhythm / To feel connected enough to
step aside and weep like a widow / To feel inspired / To fathom the
power / To witness the beauty / To bathe in the fountain / To swing
on the spiral of our divinity and still be a human // Tool