The new type [KeepAliveConfig] permits fine-tuning the keep-alive
options for TCP connections, via a new [TCPConn.SetKeepAliveConfig]

	// The C string is allocated in the C heap using malloc.
	// It is the caller's responsibility to arrange for it to be
	// freed, such as by calling C.free (be sure to include stdlib.h
	// if C.free is needed).
	func C.CString(string) *C.char

	// Go []byte slice to C array
	// The C array is allocated in the C heap using malloc.
	// It is the caller's responsibility to arrange for it to be

// removing those divisible by 'prime'.
func filter(src <-chan int, dst chan<- int, prime int) {
	for i := range src {  // Loop over values received from 'src'.
		if i%prime != 0 {
			dst <- i  // Send 'i' to channel 'dst'.
		}
	}
}

// The prime sieve: Daisy-chain filter processes together.
func sieve() {
	ch := make(chan int)  // Create a new channel.

		b := NewWriterSize(tw, BufSize)
		b.WriteString("1234")
		tw.check(t, "", "")
		b.WriteString("56789012")   // longer than BufSize
		tw.check(t, "12345678", "") // but not enough (after filling the partially-filled buffer)
		b.Flush()
		tw.check(t, "123456789012", "")
	}
	{
		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.WriteString("123456789")   // long string, empty buffer:

pkg mime/quotedprintable, type Reader struct
pkg mime/quotedprintable, type Writer struct
pkg mime/quotedprintable, type Writer struct, Binary bool
pkg net, type Dialer struct, FallbackDelay time.Duration
pkg net, type OpError struct, Source Addr
pkg net/http, type Request struct, Cancel <-chan struct
pkg net/http/fcgi, var ErrConnClosed error
pkg net/http/fcgi, var ErrRequestAborted error

pkg crypto/tls, const CurveP384 = 24
pkg crypto/tls, const CurveP384 CurveID
pkg crypto/tls, const CurveP521 = 25
pkg crypto/tls, const CurveP521 CurveID
pkg crypto/tls, func DialWithDialer(*net.Dialer, string, string, *Config) (*Conn, error)
pkg crypto/tls, func NewLRUClientSessionCache(int) ClientSessionCache
pkg crypto/tls, type ClientSessionCache interface { Get, Put }

pkg syscall (netbsd-arm64-cgo), const ICANON = 256
pkg syscall (netbsd-arm64-cgo), const ICANON ideal-int
pkg syscall (netbsd-arm64-cgo), const ICMP6_FILTER = 18
pkg syscall (netbsd-arm64-cgo), const ICMP6_FILTER ideal-int
pkg syscall (netbsd-arm64-cgo), const ICRNL = 256
pkg syscall (netbsd-arm64-cgo), const ICRNL ideal-int
pkg syscall (netbsd-arm64-cgo), const IEXTEN = 1024

		call           string
		fn             func() error
		filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

		{call: "Seteuid(1)", fn: func() error { return syscall.Seteuid(1) }, filter: "Uid:", expect: "\t0\t1\t0\t1"},

		return
	}

	f.formatOctal(b, 0) // Last resort, just write zero
	f.err = ErrFieldTooLong
}

func (p *parser) parseOctal(b []byte) int64 {
	// Because unused fields are filled with NULs, we need
	// to skip leading NULs. Fields may also be padded with
	// spaces or NULs.
	// So we remove leading and trailing NULs and spaces to
	// be sure.
	b = bytes.Trim(b, " \x00")

pkg syscall (darwin-arm64), const IPV6_MAX_GROUP_SRC_FILTER = 512
pkg syscall (darwin-arm64), const IPV6_MAX_GROUP_SRC_FILTER ideal-int
pkg syscall (darwin-arm64), const IPV6_MAX_MEMBERSHIPS = 4095
pkg syscall (darwin-arm64), const IPV6_MAX_MEMBERSHIPS ideal-int
pkg syscall (darwin-arm64), const IPV6_MAX_SOCK_SRC_FILTER = 128
pkg syscall (darwin-arm64), const IPV6_MAX_SOCK_SRC_FILTER ideal-int