"io"
	"log"
	"net"
	"internal/runtime/atomic"
	"sync"
	"time"
	_ "unsafe" // for go:linkname
)

// The bug is that netpollWaiters increases monotonically.
// This doesn't cause a problem until it overflows.
// Use linkname to see the value.
//
//go:linkname netpollWaiters runtime.netpollWaiters
var netpollWaiters atomic.Uint32

func init() {
	register("NetpollWaiters", NetpollWaiters)
}

			// all remaining offsets are too large
			offsets[i] = -1
			continue
		}
		// offs >= 0
		a := s.Alignof(f.typ)
		offs = align(offs, a) // possibly < 0 if align overflows
		offsets[i] = offs
		if d := s.Sizeof(f.typ); d >= 0 && offs >= 0 {
			offs += d // ok to overflow to < 0
		} else {
			offs = -1 // f.typ or offs is too large
		}
	}
	return offsets
}

func (s *gcSizes) Sizeof(T Type) int64 {

		a := s.Alignof(t.elem)
		ea := align(esize, a) // possibly < 0 if align overflows
		if ea < 0 {
			return -1
		}
		// ea >= 1
		n1 := n - 1 // n1 >= 0
		// Final size is ea*n1 + esize; and size must be <= maxInt64.
		const maxInt64 = 1<<63 - 1
		if n1 > 0 && ea > maxInt64/n1 {
			return -1 // ea*n1 overflows
		}
		return ea*n1 + esize // may still overflow to < 0 which is ok
	case *Slice:
		return s.WordSize * 3

type T chan byte

var sink T

func main() {
	sink = make(T, -1)            // ERROR "negative buffer argument in make.*|must not be negative"
	sink = make(T, uint64(1<<63)) // ERROR "buffer argument too large in make.*|overflows int"

	sink = make(T, 0.5) // ERROR "constant 0.5 truncated to integer|truncated to int"
	sink = make(T, 1.0)
	sink = make(T, float32(1.0)) // ERROR "non-integer buffer argument in make.*|must be integer"

		a := s.Alignof(t.elem)
		ea := align(esize, a) // possibly < 0 if align overflows
		if ea < 0 {
			return -1
		}
		// ea >= 1
		n1 := n - 1 // n1 >= 0
		// Final size is ea*n1 + esize; and size must be <= maxInt64.
		const maxInt64 = 1<<63 - 1
		if n1 > 0 && ea > maxInt64/n1 {
			return -1 // ea*n1 overflows
		}
		return ea*n1 + esize // may still overflow to < 0 which is ok
	case *Slice:
		return s.WordSize * 3

		TimeValue(testTime),
		TimeValue(time.Time{}),
		TimeValue(time.Date(2001, 1, 2, 3, 4, 5, 0, time.UTC)),
		TimeValue(time.Date(2300, 1, 1, 0, 0, 0, 0, time.UTC)),            // overflows nanoseconds
		TimeValue(time.Date(1715, 6, 13, 0, 25, 26, 290448384, time.UTC)), // overflowed value
		AnyValue(&x),
		AnyValue(&y),
		GroupValue(Bool("b", true), Int("i", 3)),
		GroupValue(Bool("b", true), Int("i", 4)),
		GroupValue(Bool("b", true), Int("j", 4)),

	info = Info{
		Total:  uint64(s.Frsize) * (s.Blocks - reservedBlocks),
		Free:   uint64(s.Frsize) * s.Bavail,
		Files:  s.Files,
		Ffree:  s.Ffree,
		FSType: getFSType(s.Type),
	}
	// Check for overflows.
	// https://github.com/minio/minio/issues/8035
	// XFS can show wrong values at times error out
	// in such scenarios.
	if info.Free > info.Total {

	info = Info{
		Total:  uint64(s.Frsize) * (s.Blocks - reservedBlocks),
		Free:   uint64(s.Frsize) * s.Bavail,
		Files:  s.Files,
		Ffree:  s.Ffree,
		FSType: getFSType(s.Type),
	}
	// Check for overflows.
	// https://github.com/minio/minio/issues/8035
	// XFS can show wrong values at times error out
	// in such scenarios.
	if info.Free > info.Total {

		ok = constConvertibleTo(T, &x.val)
		// A conversion from an integer constant to an integer type
		// can only fail if there's overflow. Give a concise error.
		// (go.dev/issue/63563)
		if !ok && isInteger(x.typ) && isInteger(T) {
			check.errorf(x, InvalidConversion, "constant %s overflows %s", x.val, T)
			x.mode = invalid
			return
		}
	case constArg && isTypeParam(T):
		// x is convertible to T if it is convertible

		i64 := rv.Int()
		if i64 > (1<<31)-1 || i64 < -(1<<31) {
			return nil, fmt.Errorf("sql/driver: value %d overflows int32", v)
		}
		return i64, nil
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
		u64 := rv.Uint()
		if u64 > (1<<31)-1 {
			return nil, fmt.Errorf("sql/driver: value %d overflows int32", v)
		}
		return int64(u64), nil
	case reflect.String:
		i, err := strconv.Atoi(rv.String())