func (z *Int) doinit() {
	if z.init {
		return
	}
	z.init = true
	C.mpz_init(&z.i[0])
}

// Bytes returns z's representation as a big-endian byte array.
func (z *Int) Bytes() []byte {
	b := make([]byte, (z.Len()+7)/8)
	n := C.size_t(len(b))
	C.mpz_export(unsafe.Pointer(&b[0]), &n, 1, 1, 1, 0, &z.i[0])
	return b[0:n]
}

		go func() {
			runtime.LockOSThread()
			select {}
		}()
	}
}

// Block blocks the current thread while running Go code.
//
//export Block
func Block() {
	select {}
}

var P *byte

// TestSEGV makes sure that an invalid address turns into a run-time Go panic.
//
//export TestSEGV
func TestSEGV() {
	defer func() {
		if recover() == nil {
			fmt.Fprintln(os.Stderr, "no panic from segv")

		{"todo.txt", "Get animal handling licence.\nWrite more examples."},
	}
	for _, file := range files {
		f, err := w.Create(file.Name)
		if err != nil {
			log.Fatal(err)
		}
		_, err = f.Write([]byte(file.Body))
		if err != nil {
			log.Fatal(err)
		}
	}

	// Make sure to check the error on Close.
	err := w.Close()
	if err != nil {
		log.Fatal(err)
	}
}

func ExampleReader() {

				attempts = max
			}
		}
	}

	if os.Getenv("test18146") == "exec" {
		runtime.GOMAXPROCS(1)
		for n := threads; n > 0; n-- {
			go func() {
				for {
					_ = md5.Sum([]byte("Hello, !"))
				}
			}()
		}
		runtime.GOMAXPROCS(threads)
		argv := append(os.Args, "-test.run=^$")
		if err := syscall.Exec(os.Args[0], argv, os.Environ()); err != nil {
			t.Fatal(err)
		}
	}

package main

import (
	"fmt"
	"os"
	"reflect"
)

// Test that the struct field in anonunion.go was promoted.
var v1 T
var v2 = v1.L

// Test that P, Q, and R all point to byte.
var v3 = Issue8478{P: (*byte)(nil), Q: (**byte)(nil), R: (***byte)(nil)}

// Test that N, A and B are fully defined
var v4 = N{}
var v5 = A{}
var v6 = B{}

// Test that S is fully defined
var v7 = S{}

}

func plistExtract(fname string, path string) ([]byte, error) {
	out, err := exec.Command("/usr/libexec/PlistBuddy", "-c", "Print "+path, fname).CombinedOutput()
	if err != nil {
		return nil, err
	}
	return bytes.TrimSpace(out), nil
}

func getLines(cmd *exec.Cmd) [][]byte {
	out := output(cmd)
	lines := bytes.Split(out, []byte("\n"))
	// Skip the empty line at the end.

// {return 5;}
//
// int* get_arr(char* arg, void* dummy)
// {return NULL;}
import "C"
import "unsafe"

// Test variables
var (
	checkedPointer            = []byte{1}
	doublePointerChecked      = []byte{1}
	singleInnerPointerChecked = []byte{1}
)

// This test checks the positions of variable identifiers.
// Changing the positions of the test variables idents after this point will break the test.

		testCFBooleanRef()
		// Allocate some memory, so eventually the write barrier is enabled
		// and it will see writes of bad pointers in the test* functions below.
		byteSliceSink = make([]byte, 1024)
	}
}

var byteSliceSink []byte

func testCFNumberRef() {
	var v int64 = 0
	xCFNumberRef = C.CFNumberCreate(C.kCFAllocatorSystemDefault, C.kCFNumberSInt64Type, unsafe.Pointer(&v))

		fw, _ = flate.NewWriter(w, 5)
	}
	return &pooledFlateWriter{fw: fw}
}

type pooledFlateWriter struct {
	mu sync.Mutex // guards Close and Write
	fw *flate.Writer
}

func (w *pooledFlateWriter) Write(p []byte) (n int, err error) {
	w.mu.Lock()
	defer w.mu.Unlock()
	if w.fw == nil {
		return 0, errors.New("Write after Close")
	}
	return w.fw.Write(p)
}

func (w *pooledFlateWriter) Close() error {
	w.mu.Lock()

	// For example, the socket data structures refer
	// to in_addr and in_addr6 structs but we want to be
	// able to treat them as byte arrays, so the godefs
	// inputs in package syscall say
	//
	//	// +godefs map struct_in_addr [4]byte
	//	// +godefs map struct_in_addr6 [16]byte
	//
	for _, g := range f.Comments {
		for _, c := range g.List {
			i := strings.Index(c.Text, "+godefs map")
			if i < 0 {
				continue