// Func has an instantiated constraint. 
	func Func[T Constraint[string, Type[int]]]()

	// Single is not a factory function. 
	func Single[T any]() *T

	// Slice is not a factory function. 
	func Slice[T any]() []T


TYPES
	// AFuncType demonstrates filtering of parameters and type ...
	type AFuncType[T ~struct{ f int }] func(_ struct {
		// contains filtered or unexported fields
	})

// - CLDR coverage levels.
// - Set of common tags defined in this package.

type allSubtags struct{}

// Regions returns the list of supported regions. As all regions are in a
// consecutive range, it simply returns a slice of numbers in increasing order.
// The "undefined" region is not returned.
func (s allSubtags) Regions() []Region {
	reg := make([]Region, language.NumRegions)
	for i := range reg {
		reg[i] = Region{language.Region(i + 1)}

	// issue #28164
	// testcase from issue
	_ = interface{}(nil) == [ /* ERROR "slice can only be compared to nil" */ ]int(nil)

	// related cases
	var e interface{}
	var s []int
	var x int
	_ = e == s // ERROR "slice can only be compared to nil"
	_ = s /* ERROR "slice can only be compared to nil" */ == e
	_ = e /* ERROR "operator < not defined on interface" */ < x

}

func CheckPtrSmall() {
	sink2 = unsafe.Pointer(uintptr(1))
}

func CheckPtrSliceOK() {
	p := new([4]int64)
	sink2 = unsafe.Slice(&p[1], 3)
}

func CheckPtrSliceFail() {
	p := new(int64)
	sink2 = p
	sink2 = unsafe.Slice(p, 100)
}

func CheckPtrStringOK() {
	p := new([4]byte)
	sink2 = unsafe.String(&p[1], 3)
}

func CheckPtrStringFail() {
	p := new(byte)

	var x float64
	var p *int
	var imap map[int]int
	var fslice []float64
	var c complex64
	// Some good format/argtypes
	fmt.Printf("")
	fmt.Printf("%b %b %b", 3, i, x)
	fmt.Printf("%c %c %c %c", 3, i, 'x', r)
	fmt.Printf("%d %d %d", 3, i, imap)
	fmt.Printf("%e %e %e %e", 3e9, x, fslice, c)
	fmt.Printf("%E %E %E %E", 3e9, x, fslice, c)
	fmt.Printf("%f %f %f %f", 3e9, x, fslice, c)
	fmt.Printf("%F %F %F %F", 3e9, x, fslice, c)

	sort.Strings(entries)

	// Add entries slice for this test directory.
	testResults = append(testResults, result{dir, entries})
	return testResults
}

// checkResult - checks whether entries are got are same as expected entries.
func checkResult(expected []string, got []string) bool {
	// If length of expected and got slice are different, the test actually failed.
	if len(expected) != len(got) {

// holds a value of type syscall.ErrorString.
package plan9 // import "golang.org/x/sys/plan9"

import (
	"bytes"
	"strings"
	"unsafe"
)

// ByteSliceFromString returns a NUL-terminated slice of bytes
// containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func ByteSliceFromString(s string) ([]byte, error) {
	if strings.IndexByte(s, 0) != -1 {
		return nil, EINVAL
	}

	return r.pgstack[pgkey{program, stack}]
}

func (r *Config) Rate(program, name string) float64 {
	return r.rate[pgkey{program, name}]
}

func set(slice []string) map[string]bool {
	s := make(map[string]bool, len(slice))
	for _, v := range slice {
		s[v] = true
	}
	return s
}

// Expand takes a counter defined with buckets and expands it into distinct
// strings for each bucket

//sys	setfsgid(gid int) (prev int, err error)
//sys	setfsuid(uid int) (prev int, err error)
//sys	Shutdown(fd int, how int) (err error)
//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
//sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
//sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64

//sys	Setfsgid(gid int) (err error) = SYS_SETFSGID32
//sys	Setfsuid(uid int) (err error) = SYS_SETFSUID32
//sys	Shutdown(fd int, how int) (err error)
//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
//sys	Ustat(dev int, ubuf *Ustat_t) (err error)

//sys	futimesat(dirfd int, path string, times *[2]Timeval) (err error)