@CollectionFeature.Require(ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)
  public void testFind_nonNullWhenNullContained() {
    initCollectionWithNullElement();
    assertEquals(getMethodName() + "(notPresent) should return -1", -1, find(e3()));
  }

  @CollectionFeature.Require(ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)
  public void testFind_nullContained() {
    initCollectionWithNullElement();

      if (entries.size() >= 3) {
        c = entries.get(2);
      }
    }
  }

  @CollectionSize.Require(ZERO)
  public void testEmptyMapFirst() {
    try {
      navigableMap.firstKey();
      fail();
    } catch (NoSuchElementException e) {
    }
  }

  @CollectionSize.Require(ZERO)
  public void testEmptyMapLast() {
    try {
      assertNull(navigableMap.lastKey());
      fail();

	x := *p             // load a byte
	y := uint16(x)      // zero extend to 16 bits
	b[0] = byte(y >> 8) // compute ROLW
	b[1] = byte(y)
	nop()               // spill/restore ROLW
	b[0] = byte(y >> 8) // use ROLW
	b[1] = byte(y)
}

//go:noinline
func f32(p *uint8, b []byte) {
	_ = b[3]             // bounds check
	x := *p              // load a byte
	y := uint32(x)       // zero extend to 32 bits
	b[0] = byte(y >> 24) // compute ROLL

  /**
   * Returns the <a href="http://en.wikipedia.org/wiki/Variance#Population_variance">population
   * variance</a> of the values. The count must be non-zero.
   *
   * <p>This is guaranteed to return zero if the dataset contains only exactly one finite value. It
   * is not guaranteed to return zero when the dataset consists of the same value multiple times,
   * due to numerical errors. However, it is guaranteed never to return a negative result.
   *

}

// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string.
// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated
// at a zero byte; if the zero byte is not present, the program may crash.
func BytePtrToString(p *byte) string {
	if p == nil {
		return ""
	}
	if *p == 0 {
		return ""
	}

	// Find NUL terminator.
	n := 0

func (ip Addr) v6u16(i uint8) uint16 {
	return uint16(*(ip.addr.halves()[(i/4)%2]) >> ((3 - i%4) * 16))
}

// isZero reports whether ip is the zero value of the IP type.
// The zero value is not a valid IP address of any type.
//
// Note that "0.0.0.0" and "::" are not the zero value. Use IsUnspecified to
// check for these values instead.
func (ip Addr) isZero() bool {

// Small zeroing
(Zero [0] _ mem) => mem
(Zero [1] ptr mem) => (MOVBstore ptr (MOVDconst [0]) mem)
(Zero [2] {t} ptr mem) && t.Alignment()%2 == 0 =>
	(MOVHstore ptr (MOVDconst [0]) mem)
(Zero [2] ptr mem) =>
	(MOVBstore [1] ptr (MOVDconst [0])
		(MOVBstore ptr (MOVDconst [0]) mem))
(Zero [4] {t} ptr mem) && t.Alignment()%4 == 0 =>
	(MOVWstore ptr (MOVDconst [0]) mem)

	(LoweredMove [s] dst src mem)

// Lowering Zero instructions
(Zero [0] _ mem) => mem
(Zero [1] destptr mem) => (I64Store8 destptr (I64Const [0]) mem)
(Zero [2] destptr mem) => (I64Store16 destptr (I64Const [0]) mem)
(Zero [4] destptr mem) => (I64Store32 destptr (I64Const [0]) mem)
(Zero [8] destptr mem) => (I64Store destptr (I64Const [0]) mem)

(Zero [3] destptr mem) =>
	(I64Store8 [2] destptr (I64Const [0])

! stdout 'diff current/go.mod tidy/go.mod'
stdout 'diff current/go.sum tidy/go.sum'

# Everything is tidy, should return zero exit code.
go mod tidy
go mod tidy -diff
! stdout 'diff current/go.mod tidy/go.mod'
! stdout 'diff current/go.sum tidy/go.sum'

# go.mod requires updates, should return non-zero exit code.
cp go.mod.orig go.mod
! go mod tidy -diff
stdout 'diff current/go.mod tidy/go.mod'

	{"if 1", "{{if 1}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true},
	{"if 0", "{{if 0}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true},
	{"if 1.5", "{{if 1.5}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true},
	{"if 0.0", "{{if .FloatZero}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true},
	{"if 1.5i", "{{if 1.5i}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true},