// It must be called when there are no other file system operations happening.
func sysWriteBits() fs.FileMode {
	// Read current umask. There's no way to read it without also setting it,
	// so set it conservatively and then restore the original one.
	m := syscall.Umask(0o777)
	syscall.Umask(m)    // restore bits
	if m&0o22 == 0o22 { // group and world are unwritable by default
		return 0o700
	}

			switch {
			case typVal.IsType():
				// Type conversion, which is safe.
			case typVal.IsBuiltin():
				// Builtin func, conservatively assumed to not
				// be safe for now.
				safe = false
				return false
			default:
				// A non-builtin func or method call.
				// Conservatively assume that all of them have
				// side effects for now.
				safe = false
				return false
			}
		case *ast.UnaryExpr:

// size of input tensors. The exception is that ops whose cost is irrelevant to
// input sizes, such as tf.Shape and tf.Reshape, are whitelisted to have cheap
// cost. This cost analysis is expected to be used conservatively (eg. use a low
// threshold to decide whether a cost is cheap or expensive), as it might not be
// accurate in some cases.
//
class CostAnalysis {
 public:
  explicit CostAnalysis(

// and 32 trailing zero bits, y should have less than 30 significant bits.
//
//	y < 1<<30  -> floor(x*4/Pi) < 1<<30 -> x < (1<<30 - 1) * Pi/4
//
// So, conservatively we can take x < 1<<29.
// Above this threshold Payne-Hanek range reduction must be used.
const reduceThreshold = 1 << 29

// trigReduce implements Payne-Hanek range reduction by Pi/4

		case *ast.Ident:
			if decl, ok := findDecl(arg).(*ast.CallExpr); ok {
				chanDecl = decl
			}
		case *ast.CallExpr:
			// Only signal.Notify(make(chan os.Signal), os.Interrupt) is safe,
			// conservatively treat others as not safe, see golang/go#45043
			if isBuiltinMake(pass.TypesInfo, arg) {
				return
			}
			chanDecl = arg
		}
		if chanDecl == nil || len(chanDecl.Args) != 1 {
			return
		}

// RUN: tf-opt %s -tf-device-mark-input-output-aliases | FileCheck %s

// The following tests check if the aliasing pairs are conservatively marked
// correctly. In the following tests tf_device.cluster_func has inputs
// coming from ReadVariableOp and outputs written to a resource using
// AssignVariableOp. If a pair of input-output (say input at index `a` and
// output at index `b`) read and write to the same resource, then those
// input-output pairs alias each other.

If your project files include symlinks, symlinked files do not benefit from file system-watching optimizations.
--

== Unsupported File Systems

When enabled by default, file system watching acts conservatively when it encounters content on unsupported file systems.
This can happen if you mount a project directory or subdirectory from a network drive.

// interaction are considered unsafe. For example, clicking on a "javascript:"
// link can immediately trigger JavaScript code execution.
//
// This filter conservatively assumes that all schemes other than the following
// are unsafe:
//   - http:   Navigates to a new website, and may open a new window or tab.
//     These side effects can be reversed by navigating back to the

				return []string{"invalid date"}
			}
			return nil
		},
		// Estimated regex size for RFC3339FullDate which is
		// a date format. Assume a date-time pattern is longer
		// so use that to conservatively estimate this
		MaxRegexSize: len(strfmt.DateTimePattern),
	},
	"datetime": {
		Name: "datetime",
		ValidateFunc: func(s string) []string {
			if !strfmt.Default.Validates("datetime", s) {

	// trailing zero bits respectively, t should have less than 30 significant bits.
	//	t < 1<<30  -> floor(x*(1/Pi)+0.5) < 1<<30 -> x < (1<<30-1) * Pi - 0.5
	// So, conservatively we can take x < 1<<30.
	const reduceThreshold float64 = 1 << 30
	if math.Abs(x) < reduceThreshold {
		// Use Cody-Waite reduction in three parts.
		const (