method

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v1_9_1_378 - Show latest stable - 0 notes - Class: Time

-(p1) public

Difference—Returns a new time that represents the difference between two times, or subtracts the given number of seconds in numeric from time.

t = Time.now       #=> 2007-11-19 08:23:10 -0600
t2 = t + 2592000   #=> 2007-12-19 08:23:10 -0600
t2 - t             #=> 2592000.0
t2 - 2592000       #=> 2007-11-19 08:23:10 -0600

Show source

static VALUE
time_minus(VALUE time1, VALUE time2)
{
    struct time_object *tobj;

    GetTimeval(time1, tobj);
    if (TYPE(time2) == T_DATA && RDATA(time2)->dfree == time_free) {
        struct time_object *tobj2;
        double f;

        GetTimeval(time2, tobj2);
        if (tobj->ts.tv_sec < tobj2->ts.tv_sec)
            f = -(double)(unsigned_time_t)(tobj2->ts.tv_sec - tobj->ts.tv_sec);
        else
            f = (double)(unsigned_time_t)(tobj->ts.tv_sec - tobj2->ts.tv_sec);
        f += ((double)tobj->ts.tv_nsec - (double)tobj2->ts.tv_nsec)*1e-9;

        return DBL2NUM(f);
    }
    return time_add(tobj, time2, -1);
}

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