}

func mode(tv types.TypeAndValue) string {
	switch {
	case tv.IsVoid():
		return "void"
	case tv.IsType():
		return "type"
	case tv.IsBuiltin():
		return "builtin"
	case tv.IsNil():
		return "nil"
	case tv.Assignable():
		if tv.Addressable() {
			return "var"
		}
		return "mapindex"
	case tv.IsValue():
		return "value"
	default:

	conf := types2.Config{
		Importer: defaultImporter(),
		Sizes:    &types2.StdSizes{WordSize: 8, MaxAlign: 8},
	}
	mustTypecheck(src, &conf, &info)
	for _, tv := range info.Types {
		_ = conf.Sizes.Sizeof(tv.Type)
		_ = conf.Sizes.Alignof(tv.Type)
	}
}

// go.dev/issue/53884.
func TestAtomicAlign(t *testing.T) {

		return 0, err
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func Utime(path string, buf *Utimbuf) error {
	tv := []Timeval{
		{Sec: buf.Actime},
		{Sec: buf.Modtime},
	}
	return Utimes(path, tv)
}

func utimes(path string, tv *[2]Timeval) (err error) {
	if tv == nil {
		return utimensat(AT_FDCWD, path, nil, 0)
	}

	ts := []Timespec{

	return int64(ts.Sec), int64(ts.Nsec)
}

func (tv *Timeval) Unix() (sec int64, nsec int64) {
	return int64(tv.Sec), int64(tv.Usec) * 1000
}

func (ts *Timespec) Nano() int64 {
	return int64(ts.Sec)*1e9 + int64(ts.Nsec)
}

func (tv *Timeval) Nano() int64 {
	return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000

func Gettimeofday(tv *Timeval) (err error) {
	errno := gettimeofday(tv)
	if errno != 0 {
		return errno
	}
	return nil
}

func Time(t *Time_t) (tt Time_t, err error) {
	var tv Timeval
	errno := gettimeofday(&tv)
	if errno != 0 {
		return 0, errno
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

}

// Unix returns the time stored in tv as seconds plus nanoseconds.
func (tv *Timeval) Unix() (sec int64, nsec int64) {
	return int64(tv.Sec), int64(tv.Usec) * 1000
}

// Nano returns the time stored in ts as nanoseconds.
func (ts *Timespec) Nano() int64 {
	return int64(ts.Sec)*1e9 + int64(ts.Nsec)
}

// Nano returns the time stored in tv as nanoseconds.
func (tv *Timeval) Nano() int64 {

			// program is fiddling signals just when the
			// test program sends the signal, the signal
			// may be delivered to a Go thread which will
			// break this test.
			tv.tv_sec = 60;
			tv.tv_usec = 0;
			select(0, NULL, NULL, NULL, &tv);

			break;
		}
		case 3: {
			if (verbose) {
				printf("attempting SIGPIPE\n");
			}

			int fd[2];
			if (pipe(fd) != 0) {
				printf("pipe(2) failed\n");

		return nil, err
	}

	var tv Timeval
	n := uintptr(unsafe.Sizeof(tv))
	if err := sysctl(mib, (*byte)(unsafe.Pointer(&tv)), &n, nil, 0); err != nil {
		return nil, err
	}
	if n != unsafe.Sizeof(tv) {
		return nil, EIO
	}
	return &tv, nil
}

//sys	utimes(path string, timeval *[2]Timeval) (err error)

func Utimes(path string, tv []Timeval) error {
	if tv == nil {
		return utimes(path, nil)
	}

//go:noescape
func gettimeofday(tv *Timeval) (err Errno)

func Gettimeofday(tv *Timeval) (err error) {
	errno := gettimeofday(tv)
	if errno != 0 {
		return errno
	}
	return nil
}

func Time(t *Time_t) (tt Time_t, err error) {
	var tv Timeval
	errno := gettimeofday(&tv)
	if errno != 0 {
		return 0, errno
	}
	if t != nil {
		*t = Time_t(tv.Sec)
	}
	return Time_t(tv.Sec), nil
}

func badFormatAt(info *types.Info, e ast.Expr) int {
	tv, ok := info.Types[e]
	if !ok { // no type info, assume good
		return -1
	}

	t, ok := tv.Type.(*types.Basic) // sic, no unalias
	if !ok || t.Info()&types.IsString == 0 {
		return -1
	}

	if tv.Value == nil {
		return -1
	}

	return strings.Index(constant.StringVal(tv.Value), badFormat)