// +3     +2      +1        0        -1     -2       -3
	// the offset to Thursday
	abs := t.abs()
	d := Thursday - absWeekday(abs)
	// handle Sunday
	if d == 4 {
		d = -3
	}
	// find the Thursday of the calendar week
	abs += uint64(d) * secondsPerDay
	year, _, _, yday := absDate(abs, false)
	return year, yday/7 + 1
}

	"fmt"
	"internal/testenv"
	"math"
	"math/rand"
	"strconv"
	"strings"
	"testing"
	"testing/quick"
)

func isNormalized(x *Int) bool {
	if len(x.abs) == 0 {
		return !x.neg
	}
	// len(x.abs) > 0
	return x.abs[len(x.abs)-1] != 0
}

type funZZ func(z, x, y *Int) *Int
type argZZ struct {
	z, x, y *Int
}

var sumZZ = []argZZ{
	{NewInt(0), NewInt(0), NewInt(0)},

    //
    // We don't have a frac(x) primitive in XLA and computing it is tricky, but
    // because abs(sin(pi * x)) = abs(sin(pi * abs(x))), it's good enough for
    // our purposes to use abs(frac(x)) = abs(x) - floor(abs(x)).
    //
    // Furthermore, pi * abs(frac(x)) loses precision when abs(frac(x)) is close
    // to 1.  To remedy this, we can use the fact that sin(pi * x) in the domain

		}
	}
}

func TestAbs(t *testing.T) {
	for i := 0; i < len(vf); i++ {
		if f := Abs(vf[i]); fabs[i] != f {
			t.Errorf("Abs(%g) = %g, want %g", vf[i], f, fabs[i])
		}
	}
	for i := 0; i < len(vffabsSC); i++ {
		if f := Abs(vffabsSC[i]); !alike(fabsSC[i], f) {
			t.Errorf("Abs(%g) = %g, want %g", vffabsSC[i], f, fabsSC[i])
		}
	}
}

func TestDim(t *testing.T) {

	}
	return s
}

// GoString implements [fmt.GoStringer] and formats t to be printed in Go source
// code.
func (t Time) GoString() string {
	abs := t.abs()
	year, month, day, _ := absDate(abs, true)
	hour, minute, second := absClock(abs)

	buf := make([]byte, 0, len("time.Date(9999, time.September, 31, 23, 59, 59, 999999999, time.Local)"))
	buf = append(buf, "time.Date("...)
	buf = appendInt(buf, year, 0)

        given:
        file('provider.txt').text = 'provider'
        file('fis-path.txt').text = 'fis-path'
        file('fis-file.txt').text = 'fis-file'
        file('fis-abs.txt').text = 'fis-abs'
        buildFile '''
            providers.fileContents(layout.projectDirectory.file("provider.txt")).with { provider ->
                println("provider = ${provider.asText.get()}")
            }

const unixToZero = -978307200 + 63113904000

// abs returns the absolute time stored in t, as seconds and nanoseconds.
func abs(t Time) (sec, nsec int64) {
	unix := t.Unix()
	nano := t.Nanosecond()
	return unix + unixToZero, int64(nano)
}

// absString returns abs as a decimal string.
func absString(t Time) string {
	sec, nsec := abs(t)
	if sec < 0 {
		sec = -sec
		nsec = -nsec
		if nsec < 0 {

}

func float64close(x, y float64) bool {
	x0 := float64NaNTo0(x)
	y0 := float64NaNTo0(y)
	diff := math.Abs(x0 - y0)
	den := math.Max(math.Abs(x0), math.Abs(y0))
	return den == 0 || diff/den < 1e-10
}

func uint64max(a, b uint64) uint64 {
	if b > a {
		return b
	}
	return a
}

// This is known as "black box" testing.
//
//	package abs_test
//
//	import (
//		"testing"
//
//		"path_to_pkg/abs"
//	)
//
//	func TestAbs(t *testing.T) {
//	    got := abs.Abs(-1)
//	    if got != 1 {
//	        t.Errorf("Abs(-1) = %d; want 1", got)
//	    }
//	}
//
// For more detail, run "go help test" and "go help testflag".
//
// # Benchmarks
//

    // CHECK-DAG: %[[SIGN:.*]] = "tf.Sign"(%[[PROX]]) : (tensor<4xf32>) -> tensor<4xf32>
    // CHECK-DAG: %[[ABS:.*]] = "tf.Abs"(%[[PROX]]) : (tensor<4xf32>) -> tensor<4xf32>
    // CHECK-DAG: %[[SCALED_L1:.*]] = "tf.Mul"(%[[ADAGRAD_LR]], %[[L1]]) : (tensor<4xf32>, tensor<f32>) -> tensor<4xf32>
    // CHECK-DAG: %[[PROX_NEW:.*]] = "tf.Sub"(%[[ABS]], %[[SCALED_L1]]) : (tensor<4xf32>, tensor<4xf32>) -> tensor<4xf32>