private static void longToBytes(long value, byte[] bytes, int offset) {
        bytes[offset] = (byte) (value & 0xFF);
        bytes[offset + 1] = (byte) ((value >>> 8) & 0xFF);
        bytes[offset + 2] = (byte) ((value >>> 16) & 0xFF);
        bytes[offset + 3] = (byte) ((value >>> 24) & 0xFF);
        bytes[offset + 4] = (byte) ((value >>> 32) & 0xFF);
        bytes[offset + 5] = (byte) ((value >>> 40) & 0xFF);

func (e *P256Element) Equal(t *P256Element) int {
	eBytes := e.Bytes()
	tBytes := t.Bytes()
	return subtle.ConstantTimeCompare(eBytes, tBytes)
}

// IsZero returns 1 if e == 0, and zero otherwise.
func (e *P256Element) IsZero() int {
	zero := make([]byte, p256ElementLen)
	eBytes := e.Bytes()
	return subtle.ConstantTimeCompare(eBytes, zero)
}

// Set sets e = t, and returns e.

		errExpected bool
	}{
		{"bytes=0-", false},
		{"bytes=1-", false},

		{"bytes=0-9", false},
		{"bytes=1-10", false},
		{"bytes=1-1", false},
		{"bytes=2-5", false},

		{"bytes=-5", false},
		{"bytes=-1", false},
		{"bytes=-1000", false},
		{"bytes=", true},
		{"bytes= ", true},
		{"byte=", true},
		{"bytes=A-B", true},
		{"bytes=1-B", true},
		{"bytes=B-1", true},

		for ; p < len(in.bytes) && !utf8.RuneStart(in.bytes[p]); p++ {
		}
	}
	return p
}

func (in *input) appendSlice(buf []byte, b, e int) []byte {
	if in.bytes != nil {
		return append(buf, in.bytes[b:e]...)
	}
	for i := b; i < e; i++ {
		buf = append(buf, in.str[i])
	}
	return buf
}

func (in *input) copySlice(buf []byte, b, e int) int {
	if in.bytes == nil {
		return copy(buf, in.str[b:e])
	}

                new byte[] {(byte) 2, (byte) 3, (byte) 4}))
        .isEqualTo(2);
    assertThat(
            Bytes.indexOf(
                new byte[] {(byte) 2, (byte) 2, (byte) 3, (byte) 4, (byte) 2, (byte) 3, (byte) 4},
                new byte[] {(byte) 2, (byte) 3, (byte) 4}))
        .isEqualTo(1);
    assertThat(
            Bytes.indexOf(
                new byte[] {(byte) 4, (byte) 3, (byte) 2},

	var b bytes.Buffer
	b.Grow(64) // ERROR "bufferNoEscape4 ignoring self-assignment in bytes.b.buf = bytes.b.buf\[:bytes.m\]$" "inlining call to bytes.\(\*Buffer\).Grow$" `".+" escapes to heap`
	useBuffer(&b)
	return b.Bytes() // ERROR "inlining call to bytes.\(\*Buffer\).Bytes$"
}

func bufferNoEscape5() { // ERROR "can inline bufferNoEscape5$"

  }

  MessageDigestHashFunction(String algorithmName, int bytes, String toString) {
    this.toString = checkNotNull(toString);
    this.prototype = getMessageDigest(algorithmName);
    int maxLength = prototype.getDigestLength();
    checkArgument(
        bytes >= 4 && bytes <= maxLength, "bytes (%s) must be >= 4 and < %s", bytes, maxLength);
    this.bytes = bytes;
    this.supportsClone = supportsClone(prototype);
  }

  }

  MessageDigestHashFunction(String algorithmName, int bytes, String toString) {
    this.toString = checkNotNull(toString);
    this.prototype = getMessageDigest(algorithmName);
    int maxLength = prototype.getDigestLength();
    checkArgument(
        bytes >= 4 && bytes <= maxLength, "bytes (%s) must be >= 4 and < %s", bytes, maxLength);
    this.bytes = bytes;
    this.supportsClone = supportsClone(prototype);
  }

    // loop we keep 56 bytes of state: v, w, x, y, and z.
    long x = load64(bytes, offset);
    long y = load64(bytes, offset + length - 16) ^ K1;
    long z = load64(bytes, offset + length - 56) ^ K0;
    long[] v = new long[2];
    long[] w = new long[2];
    weakHashLength32WithSeeds(bytes, offset + length - 64, length, y, v);

   * must be handed-off so as to preserve the immutability contract of {@code HashCode}.
   */
  static HashCode fromBytesNoCopy(byte[] bytes) {
    return new BytesHashCode(bytes);
  }

  private static final class BytesHashCode extends HashCode implements Serializable {
    final byte[] bytes;

    BytesHashCode(byte[] bytes) {