if f.zero {
			memclrNoHeapPointers(v, f.size)
		}
		return v
	}
	if uintptr(f.nchunk) < f.size {
		f.chunk = uintptr(persistentalloc(uintptr(f.nalloc), 0, f.stat))
		f.nchunk = f.nalloc
	}

	v := unsafe.Pointer(f.chunk)
	if f.first != nil {
		f.first(f.arg, v)
	}
	f.chunk = f.chunk + f.size
	f.nchunk -= uint32(f.size)
	f.inuse += f.size
	return v
}

	if sc == ec {
		// The range doesn't cross any chunk boundaries.
		chunk := p.chunkOf(sc)
		scav += chunk.scavenged.popcntRange(si, ei+1-si)
		chunk.allocRange(si, ei+1-si)
		p.scav.index.alloc(sc, ei+1-si)
	} else {
		// The range crosses at least one chunk boundary.
		chunk := p.chunkOf(sc)
		scav += chunk.scavenged.popcntRange(si, pallocChunkPages-si)
		chunk.allocRange(si, pallocChunkPages-si)

// getEsc gets a possibly-escaped character from chunk, for a character class.
func getEsc(chunk string) (r rune, nchunk string, err error) {
	if len(chunk) == 0 || chunk[0] == '-' || chunk[0] == ']' {
		err = ErrBadPattern
		return
	}
	if chunk[0] == '\\' {
		chunk = chunk[1:]
		if len(chunk) == 0 {
			err = ErrBadPattern
			return
		}
	}
	r, n := utf8.DecodeRuneInString(chunk)
	if r == utf8.RuneError && n == 1 {

// The provided files must all belong to the same package.
func (check *Checker) initFiles(files []*ast.File) {
	// start with a clean slate (check.Files may be called multiple times)
	check.files = nil
	check.imports = nil
	check.dotImportMap = nil

	check.firstErr = nil
	check.methods = nil
	check.untyped = nil
	check.delayed = nil
	check.objPath = nil
	check.cleaners = nil

    ByteSource source = out.asByteSource();
    int chunk1 = Math.min(dataSize, fileThreshold);
    int chunk2 = dataSize - chunk1;

    // Write just enough to not trip the threshold
    if (chunk1 > 0) {
      write(out, data, 0, chunk1, singleByte);
      assertTrue(ByteSource.wrap(data).slice(0, chunk1).contentEquals(source));
    }
    File file = out.getFile();
    assertNull(file);

// The provided files must all belong to the same package.
func (check *Checker) initFiles(files []*syntax.File) {
	// start with a clean slate (check.Files may be called multiple times)
	check.files = nil
	check.imports = nil
	check.dotImportMap = nil

	check.firstErr = nil
	check.methods = nil
	check.untyped = nil
	check.delayed = nil
	check.objPath = nil
	check.cleaners = nil

	for _, g := range leaked {
		errString.WriteString(fmt.Sprintf("Leaked goroutine: %v\n", g.stack))
	}
	return errors.New(errString.String())
}

// Check adds a check to a test to ensure there are no leaked goroutines
// To use, simply call leak.Check(t) at the start of a test; Do not call it in defer.
// It is recommended to call this as the first step, as Cleanup is called in LIFO order; this ensures any

}

// isExactFloat32 reports whether x can be exactly represented as a float32.
func isExactFloat32(x float64) bool {
	// Check the mantissa is in range.
	if bits.TrailingZeros64(math.Float64bits(x)) < 52-23 {
		return false
	}
	// Check the exponent is in range. The mantissa check above is sufficient for NaN values.
	return math.IsNaN(x) || x == float64(float32(x))

commands: [{
    executable: gradle
    args: check
    expected-output-file: check.out
    allow-additional-output: true
    allow-disordered-output: true

commands: [{
    executable: gradle
    args: showFile
    expected-output-file: check.out
    allow-additional-output: true