}

func TestWriterReset(t *testing.T) {
	var buf1, buf2, buf3, buf4, buf5 strings.Builder
	w := NewWriter(&buf1)
	w.WriteString("foo")

	w.Reset(&buf2) // and not flushed
	w.WriteString("bar")
	w.Flush()
	if buf1.String() != "" {
		t.Errorf("buf1 = %q; want empty", buf1.String())
	}
	if buf2.String() != "bar" {
		t.Errorf("buf2 = %q; want bar", buf2.String())
	}

	arr    [64]byte
	arrPtr *[64]byte
	buf1   []byte
	buf2   []byte
	str1   string
	str2   string
}

func (b *Buffer) foo() { // ERROR "b does not escape$"
	b.buf1 = b.buf1[1:2]   // ERROR "\(\*Buffer\).foo ignoring self-assignment in b.buf1 = b.buf1\[1:2\]$"
	b.buf1 = b.buf1[1:2:3] // ERROR "\(\*Buffer\).foo ignoring self-assignment in b.buf1 = b.buf1\[1:2:3\]$"

	arr    [64]byte
	arrPtr *[64]byte
	buf1   []byte
	buf2   []byte
	str1   string
	str2   string
}

func (b *Buffer) foo() { // ERROR "b does not escape$"
	b.buf1 = b.buf1[1:2]   // ERROR "\(\*Buffer\).foo ignoring self-assignment in b.buf1 = b.buf1\[1:2\]$"
	b.buf1 = b.buf1[1:2:3] // ERROR "\(\*Buffer\).foo ignoring self-assignment in b.buf1 = b.buf1\[1:2:3\]$"

// The noescape comment only applies to the next func,
// which must not have a body.

//go:noescape

func F1([]byte)

func F2([]byte)

func G() {
	var buf1 [10]byte
	F1(buf1[:])

	var buf2 [10]byte // ERROR "moved to heap: buf2"
	F2(buf2[:])

	// read
}

func ExampleMultiWriter() {
	r := strings.NewReader("some io.Reader stream to be read\n")

	var buf1, buf2 strings.Builder
	w := io.MultiWriter(&buf1, &buf2)

	if _, err := io.Copy(w, r); err != nil {
		log.Fatal(err)
	}

	fmt.Print(buf1.String())
	fmt.Print(buf2.String())

	// Output:
	// some io.Reader stream to be read
	// some io.Reader stream to be read
}

		panic("crypto/ecdh: internal error: isLess input too large")
	}
	bufA, bufB := make([]byte, 72), make([]byte, 72)
	for i := range a {
		bufA[i], bufB[i] = a[len(a)-i-1], b[len(b)-i-1]
	}

	// Perform a subtraction with borrow.
	var borrow uint64
	for i := 0; i < len(bufA); i += 8 {
		limbA, limbB := byteorder.LeUint64(bufA[i:]), byteorder.LeUint64(bufB[i:])
		_, borrow = bits.Sub64(limbA, limbB, borrow)
	}

			}
			fatalf(msg+": %v", err)
		}
		var buf bytes.Buffer
		buf.WriteString("HTTP/1.1 200 OK\r\n")
		if test.chunked {
			buf.WriteString("Transfer-Encoding: chunked\r\n")
		} else {
			buf.WriteString("Content-Length: 1000000\r\n")
		}
		var wr io.Writer = &buf
		if test.chunked {
			wr = internal.NewChunkedWriter(wr)
		}
		if test.compressed {
			buf.WriteString("Content-Encoding: gzip\r\n")

	func() {
		buf1 := bytes.NewReader([]byte("foo"))
		buf2 := bytes.NewReader([]byte("bar"))
		mr = MultiReader(buf1, buf2)
		runtime.SetFinalizer(buf1, func(*bytes.Reader) {
			close(closed)
		})
	}()

	buf := make([]byte, 4)
	if n, err := ReadFull(mr, buf); err != nil || string(buf) != "foob" {
		t.Fatalf(`ReadFull = %d (%q), %v; want 3, "foo", nil`, n, buf[:n], err)
	}

	runtime.GC()

}

func verifyPrint(t *testing.T, filename string, ast1 *File) {
	var buf1 bytes.Buffer
	_, err := Fprint(&buf1, ast1, LineForm)
	if err != nil {
		panic(err)
	}
	bytes1 := buf1.Bytes()

	ast2, err := Parse(NewFileBase(filename), &buf1, nil, nil, 0)
	if err != nil {
		panic(err)
	}

	var buf2 bytes.Buffer
	_, err = Fprint(&buf2, ast2, LineForm)
	if err != nil {
		panic(err)
	}

    checkNotNull(other);

    byte[] buf1 = createBuffer();
    byte[] buf2 = createBuffer();

    Closer closer = Closer.create();
    try {
      InputStream in1 = closer.register(openStream());
      InputStream in2 = closer.register(other.openStream());
      while (true) {
        int read1 = ByteStreams.read(in1, buf1, 0, buf1.length);
        int read2 = ByteStreams.read(in2, buf2, 0, buf2.length);