# to generate bootstrap tgz files for builders.

set -e

if [ "$GOOS" = "" -o "$GOARCH" = "" ]; then
	echo "usage: GOOS=os GOARCH=arch ./bootstrap.bash [-force]" >&2
	exit 2
fi

forceflag=""
if [ "$1" = "-force" ]; then
	forceflag=-force
	shift
fi

targ="../../go-${GOOS}-${GOARCH}-bootstrap"
if [ -e $targ ]; then
	echo "$targ already exists; remove before continuing"
	exit 2
fi

memory regions until the garbage collector is able to determine that it is
safe. Typically, a use-after-free bug will result in a fault and a helpful
error message, but this package reserves the right to not force a fault on
freed memory. That means a valid implementation of this package is to just
allocate all memory the way the runtime normally would, and in fact, it
reserves the right to occasionally do so for some Go values.
*/

		c <- int(C.returnAfterGrowFromGo())
	}()
	if got, want := <-c, 129*128/2; got != want {
		t.Errorf("got %d want %d", got, want)
	}
}

//export goReturnVal
func goReturnVal() (r C.int) {
	// Force a stack copy.
	var f func(int) int
	f = func(i int) int {
		var buf [256]byte
		use(buf[:])
		if i == 0 {
			return 0
		}
		return i + f(i-1)
	}
	r = C.int(f(128))
	return
}

	case n == 1:
		return IndexByte(s, sep[0])
	case n == len(s):
		if Equal(sep, s) {
			return 0
		}
		return -1
	case n > len(s):
		return -1
	case n <= bytealg.MaxLen:
		// Use brute force when s and sep both are small
		if len(s) <= bytealg.MaxBruteForce {
			return bytealg.Index(s, sep)
		}
		c0 := sep[0]
		c1 := sep[1]
		i := 0
		t := len(s) - n + 1
		fails := 0
		for i < t {

pkg syscall (linux-386), const MCL_CURRENT = 1
pkg syscall (linux-386), const MCL_FUTURE = 2
pkg syscall (linux-386), const MNT_DETACH = 2
pkg syscall (linux-386), const MNT_EXPIRE = 4
pkg syscall (linux-386), const MNT_FORCE = 1
pkg syscall (linux-386), const MSG_CMSG_CLOEXEC = 1073741824
pkg syscall (linux-386), const MSG_CONFIRM = 2048
pkg syscall (linux-386), const MSG_CTRUNC = 8
pkg syscall (linux-386), const MSG_DONTROUTE = 4

pkg syscall (linux-arm-cgo), const MCL_FUTURE ideal-int
pkg syscall (linux-arm-cgo), const MNT_DETACH ideal-int
pkg syscall (linux-arm-cgo), const MNT_EXPIRE ideal-int
pkg syscall (linux-arm-cgo), const MNT_FORCE ideal-int
pkg syscall (linux-arm-cgo), const MSG_CMSG_CLOEXEC ideal-int
pkg syscall (linux-arm-cgo), const MSG_CONFIRM ideal-int
pkg syscall (linux-arm-cgo), const MSG_CTRUNC ideal-int

import (
	"bufio"
	"bytes"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func ExampleWriter() {
	w := bufio.NewWriter(os.Stdout)
	fmt.Fprint(w, "Hello, ")
	fmt.Fprint(w, "world!")
	w.Flush() // Don't forget to flush!
	// Output: Hello, world!
}

func ExampleWriter_AvailableBuffer() {
	w := bufio.NewWriter(os.Stdout)
	for _, i := range []int64{1, 2, 3, 4} {
		b := w.AvailableBuffer()
		b = strconv.AppendInt(b, i, 10)

		// GNU and BSD tar utilities.
		// The archive generated by GNU is nearly byte-for-byte identical
		// to the Go version except the Go version sets a negative Devminor
		// just to force the GNU format.
		file: "testdata/gnu-utf8.tar",
		headers: []*Header{{
			Name: "☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹",
			Mode: 0644,
			Uid:  1000, Gid: 1000,
			ModTime:  time.Unix(0, 0),

	nargs := make([]string, 0, len(args)+len(extraArgs))
	for _, arg := range args {
		if !strings.HasPrefix(arg, "-O") {
			nargs = append(nargs, arg)
		}
	}

	// Force -O0 optimization and append extra arguments, but keep the
	// trailing "-" at the end.
	li := len(nargs) - 1
	last := nargs[li]
	nargs[li] = "-O0"
	nargs = append(nargs, extraArgs...)

pkg syscall (linux-386), const MCL_FUTURE ideal-int
pkg syscall (linux-386), const MNT_DETACH ideal-int
pkg syscall (linux-386), const MNT_EXPIRE ideal-int
pkg syscall (linux-386), const MNT_FORCE ideal-int
pkg syscall (linux-386), const MSG_CMSG_CLOEXEC ideal-int
pkg syscall (linux-386), const MSG_CONFIRM ideal-int
pkg syscall (linux-386), const MSG_CTRUNC ideal-int