}
	return syscall.ENOPROTOOPT
}

func setKeepAlive(fd *netFD, keepalive bool) error {
	return syscall.ENOPROTOOPT
}

func setLinger(fd *netFD, sec int) error {
	if fd.fakeNetFD != nil {
		return fd.fakeNetFD.setLinger(sec)
	}
	return syscall.ENOPROTOOPT

package net

import "syscall"

func setKeepAlive(fd *netFD, keepalive bool) error {
	if keepalive {
		_, e := fd.ctl.WriteAt([]byte("keepalive"), 0)
		return e
	}
	return nil
}

func setLinger(fd *netFD, sec int) error {
	return syscall.EPLAN9

func setKeepAlive(fd *netFD, keepalive bool) error {
	err := fd.pfd.SetsockoptInt(syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, boolint(keepalive))
	runtime.KeepAlive(fd)
	return wrapSyscallError("setsockopt", err)
}

func setLinger(fd *netFD, sec int) error {
	var l syscall.Linger
	if sec >= 0 {
		l.Onoff = 1
		l.Linger = int32(sec)
	} else {
		l.Onoff = 0
		l.Linger = 0
	}

func forceClose(conn net.Conn) error {
	// Close may be called more than once.
	defer func() { _ = conn.Close() }()

	// Force the connection closed (should result in sending RST)
	return conn.(*net.TCPConn).SetLinger(0)

// until all data has been sent or discarded.
// On some operating systems after sec seconds have elapsed any remaining
// unsent data may be discarded.
func (c *TCPConn) SetLinger(sec int) error {
	if !c.ok() {
		return syscall.EINVAL
	}
	if err := setLinger(c.fd, sec); err != nil {
		return &OpError{Op: "set", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}
	return nil
}

func (ffd *fakeNetFD) setWriteBuffer(bytes int) error {
	return os.NewSyscallError("setWriteBuffer", syscall.ENOTSUP)
}

func (ffd *fakeNetFD) setLinger(sec int) error {
	if sec < 0 || ffd.peer == nil {
		return os.NewSyscallError("setLinger", syscall.EINVAL)
	}
	ffd.peer.queue.setLinger(sec > 0)
	return nil

	if err != nil {
		t.Fatal(err)
	}
	c, err := DialTCP("tcp4", nil, ra)
	if err != nil {
		t.Fatal(err)
	}
	defer c.Close()
	c.SetKeepAlive(false)
	c.SetKeepAlivePeriod(3 * time.Second)
	c.SetLinger(0)
	c.SetNoDelay(false)
	c.LocalAddr()
	c.RemoteAddr()
	c.SetDeadline(time.Now().Add(someTimeout))
	c.SetReadDeadline(time.Now().Add(someTimeout))
	c.SetWriteDeadline(time.Now().Add(someTimeout))

	serverDone := make(chan struct{})
	dialed := make(chan struct{})
	go func() {
		defer close(serverDone)

		cs, err := ln.Accept()
		if err != nil {
			return
		}
		<-dialed
		cs.(*TCPConn).SetLinger(0)
		cs.Close()
	}()
	defer func() {
		ln.Close()
		<-serverDone
	}()

	ss, err := Dial("tcp", ln.Addr().String())
	close(dialed)
	if err != nil {
		t.Fatal(err)
	}

// Test method calls on type parameters

package main

import (
	"fmt"
	"reflect"
	"strconv"
)

// Simple constraint
type Stringer interface {
	String() string
}

func stringify[T Stringer](s []T) (ret []string) {
	for _, v := range s {
		ret = append(ret, v.String())
	}
	return ret
}

type myint int

func (i myint) String() string {

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build ignore

// This is a mini version of the stringer tool customized for the Anames table
// in the architecture support for obj.
// This version just generates the slice of strings, not the String method.

package main

import (
	"bufio"
	"flag"
	"fmt"
	"log"
	"os"