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class method
DateTime.ordinal
(?::Integer year, ?::Integer yday, ?::Integer hour, ?::Integer minute, ?::Integer second, ?::Integer offset, ?::Integer start) -> ::DateTime
DateTime.ordinal([year=-4712[, yday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]) → datetime
ext/date/date_core.c
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static VALUE
datetime_s_ordinal(int argc, VALUE *argv, VALUE klass)
{
VALUE vy, vd, vh, vmin, vs, vof, vsg, y, fr, fr2, ret;
int d, h, min, s, rof;
double sg;
rb_scan_args(argc, argv, "07", &vy, &vd, &vh, &vmin, &vs, &vof, &vsg);
y = INT2FIX(-4712);
d = 1;
h = min = s = 0;
fr2 = INT2FIX(0);
rof = 0;
sg = DEFAULT_SG;
switch (argc) {
case 7:
val2sg(vsg, sg);
case 6:
val2off(vof, rof);
case 5:
check_numeric(vs, "second");
num2int_with_frac(s, positive_inf);
case 4:
check_numeric(vmin, "minute");
num2int_with_frac(min, 4);
case 3:
check_numeric(vh, "hour");
num2int_with_frac(h, 3);
case 2:
check_numeric(vd, "yday");
num2int_with_frac(d, 2);
case 1:
check_numeric(vy, "year");
y = vy;
}
{
VALUE nth;
int ry, rd, rh, rmin, rs, rjd, rjd2, ns;
if (!valid_ordinal_p(y, d, sg,
&nth, &ry,
&rd, &rjd,
&ns))
rb_raise(eDateError, "invalid date");
if (!c_valid_time_p(h, min, s, &rh, &rmin, &rs))
rb_raise(eDateError, "invalid date");
canon24oc();
rjd2 = jd_local_to_utc(rjd,
time_to_df(rh, rmin, rs),
rof);
ret = d_complex_new_internal(klass,
nth, rjd2,
0, INT2FIX(0),
rof, sg,
0, 0, 0,
rh, rmin, rs,
HAVE_JD | HAVE_TIME);
}
add_frac();
return ret;
}
Creates a DateTime object denoting the given ordinal date.
Example
DateTime.ordinal(2001,34) #=> #<DateTime: 2001-02-03T00:00:00+00:00 ...> DateTime.ordinal(2001,34,4,5,6,'+7') #=> #<DateTime: 2001-02-03T04:05:06+07:00 ...> DateTime.ordinal(2001,-332,-20,-55,-54,'+7') #=> #<DateTime: 2001-02-03T04:05:06+07:00 ...>