func stack2000() { var buf [2000]byte; use(buf[:]); C.callGoStackCheck() }
func stack2004() { var buf [2004]byte; use(buf[:]); C.callGoStackCheck() }
func stack2008() { var buf [2008]byte; use(buf[:]); C.callGoStackCheck() }
func stack2012() { var buf [2012]byte; use(buf[:]); C.callGoStackCheck() }
func stack2016() { var buf [2016]byte; use(buf[:]); C.callGoStackCheck() }

One of the integer part or the fractional part may be elided; the radix point may be elided as well,
but the exponent part is required. (This syntax matches the one given in IEEE 754-2008 §5.12.3.)
An exponent value exp scales the mantissa (integer and fractional part) by 2<sup>exp</sup>.
</p>

<p>
For readability, an underscore character <code>_</code> may appear after

pkg time, const October = 10
pkg time, const RFC1123 = "Mon, 02 Jan 2006 15:04:05 MST"
pkg time, const RFC1123Z = "Mon, 02 Jan 2006 15:04:05 -0700"
pkg time, const RFC3339 = "2006-01-02T15:04:05Z07:00"
pkg time, const RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"
pkg time, const RFC822 = "02 Jan 06 15:04 MST"
pkg time, const RFC822Z = "02 Jan 06 15:04 -0700"
pkg time, const RFC850 = "Monday, 02-Jan-06 15:04:05 MST"

pkg syscall (linux-arm), type SysProcAttr struct, UseCgroupFD bool #51246
pkg testing, method (*B) Elapsed() time.Duration #43620
pkg time, const DateOnly = "2006-01-02" #52746
pkg time, const DateOnly ideal-string #52746
pkg time, const DateTime = "2006-01-02 15:04:05" #52746
pkg time, const DateTime ideal-string #52746
pkg time, const TimeOnly = "15:04:05" #52746
pkg time, const TimeOnly ideal-string #52746

		wantValid:    true,
		wantAligned:  []sparseEntry{{0, 1536}, {8192, 1808}},
		wantInverted: []sparseEntry{{2000, 6000}, {10000, 0}},
	}, {
		in: []sparseEntry{{0, 2000}, {2000, 2000}, {4000, 0}, {4000, 3000}, {7000, 1000}, {8000, 0}, {8000, 2000}}, size: 10000,
		wantValid:    true,
		wantAligned:  []sparseEntry{{0, 1536}, {2048, 1536}, {4096, 2560}, {7168, 512}, {8192, 1808}},

		t.Fatal("after scan:", s.Err())
	}
}

func TestBlankLines(t *testing.T) {
	s := NewScanner(strings.NewReader(strings.Repeat("\n", 1000)))
	for count := 0; s.Scan(); count++ {
		if count > 2000 {
			t.Fatal("looping")
		}
	}
	if s.Err() != nil {
		t.Fatal("after scan:", s.Err())
	}
}

type countdown int