a := Repeat(tin, tt.count)
		if !Equal(a, tout) {
			t.Errorf("Repeat(%q, %d) = %q; want %q", tin, tt.count, a, tout)
			continue
		}
	}
}

func repeat(b []byte, count int) (err error) {
	defer func() {
		if r := recover(); r != nil {
			switch v := r.(type) {
			case error:
				err = v
			default:
				err = fmt.Errorf("%s", v)
			}
		}
	}()

	Repeat(b, count)

		usage()
	}

	var zb bytes.Buffer
	zw := zip.NewWriter(&zb)
	seen := make(map[string]bool)
	err := filepath.WalkDir(".", func(path string, d fs.DirEntry, err error) error {
		if d.IsDir() {
			return nil
		}
		data, err := os.ReadFile(path)
		if err != nil {
			log.Fatal(err)
		}
		if strings.HasSuffix(path, ".zip") {
			log.Fatalf("unexpected file during walk: %s", path)

	})
	if addr2linePathErr != nil {
		t.Fatal(addr2linePathErr)
	}
	return addr2lineExePath
}

var (
	addr2linePathOnce sync.Once
	addr2lineExePath  string
	addr2linePathErr  error
)

func loadSyms(t *testing.T, dbgExePath string) map[string]string {
	cmd := testenv.Command(t, testenv.GoToolPath(t), "tool", "nm", dbgExePath)
	out, err := cmd.CombinedOutput()
	if err != nil {

		t.Errorf("UncompressedSize: got %d, want %d\n", got, want)
	}
	if got, want := fh2.UncompressedSize64, wantUncompressedSize64; got != want {
		t.Errorf("UncompressedSize64: got %d, want %d\n", got, want)
	}
	if got, want := fh2.ModifiedTime, fh.ModifiedTime; got != want {
		t.Errorf("ModifiedTime: got %d, want %d\n", got, want)
	}

			p.errorf("register list: expected ']', found EOF")
		} else {
			p.errorf("register list: bad low register in `[%s`", loName)
		}
		return
	}
	if tok := p.next().ScanToken; tok != '-' {
		p.errorf("register list: expected '-' after `[%s`, found %s", loName, tok)
		return
	}
	hiName := p.next().String()
	hi, ok := p.arch.Register[hiName]
	if !ok {

// to stay in the language.
func println(args ...Type)

// The error built-in interface type is the conventional interface for
// representing an error condition, with the nil value representing no error.
type error interface {
	Error() string

		fname = strings.TrimPrefix(fname, "cmd/cgo/internal/")
		if !strings.HasPrefix(fname, "test.") {
			continue
		}
		got = append(got, fname)
	}
	if !reflect.DeepEqual(want, got) {
		t.Errorf("incorrect backtrace:\nwant:\t%v\ngot:\t%v", want, got)
	}

//
// It panics if count is negative or if the result of (len(b) * count)
// overflows.
func Repeat(b []byte, count int) []byte {
	if count == 0 {
		return []byte{}
	}

	// Since we cannot return an error on overflow,
	// we should panic if the repeat will generate an overflow.
	// See golang.org/issue/16237.
	if count < 0 {
		panic("bytes: negative Repeat count")
	}
	if len(b) >= maxInt/count {

	if err != nil {
		t.Errorf("read error: %v", err)
	}
	if n != 0 {
		t.Errorf("wrong count; got %d want 0", n)
	}
}

func TestUnreadByte(t *testing.T) {
	b := new(Buffer)

	// check at EOF
	if err := b.UnreadByte(); err == nil {
		t.Fatal("UnreadByte at EOF: got no error")
	}
	if _, err := b.ReadByte(); err == nil {
		t.Fatal("ReadByte at EOF: got no error")
	}

				if err != nil {
					if !test.wantErr {
						t.Errorf("%s: %v", path, err)
					}
					sawErr = true
					return nil
				}
				files = append(files, path)
				return nil
			})
			if err != nil {
				t.Errorf("fs.WalkDir error: %v", err)
			}
			if test.wantErr && !sawErr {
				t.Error("succeeded but want error")