func (t *T) Name() int64 { return 64 }

type I1 interface { Name() int8 }
type I2 interface { Name() int64 }

func main() {
	shouldPanic(p1)
}

func p1() {
	var i1 I1
	var s *S
	i1 = s
	print(i1.(I2).Name())
}

func shouldPanic(f func()) {
	defer func() {
		if recover() == nil {
			panic("function should panic")
		}
	}()
	f()

	if foo1(v1) != 1 {
		panic(1)
	}
	var v2 = int32(i.(int))
	if foo2(v2) != 1 {
		panic(2)
	}
	
	shouldPanic(p1)
}

func p1() {
	var i I
	i = 1
	var v3 = i.(int32) // This type conversion should fail at runtime.
	if foo2(v3) != 1 {
		panic(3)
	}
}

func shouldPanic(f func()) {
	defer func() {
		if recover() == nil {
			panic("function should panic")
		}
	}()
	f()

	}

	// send should work with ,ok too: sent a value without blocking, so ok == true.
	shouldPanic(func() { c.Nbsend(1) })

	// the value should have been discarded.
	if x := c.Recv(); x != 0 {
		println("test1: recv on closed got non-zero after send on closed:", x, c.Impl())
		failed = true
	}

	// similarly Send.
	shouldPanic(func() { c.Send(2) })
	if x := c.Recv(); x != 0 {

}

func main() {
	shift[[62]byte]()
	shift[[63]byte]()
	shift[[64]byte]()
	shift[[100]byte]()
	shift[[1e6]byte]()

	add[[1]byte]()
	shouldPanic("divide by zero", func() { div[[0]byte]() })
}

func shouldPanic(str string, f func()) {
	defer func() {
		err := recover()
		if err == nil {
			panic("did not panic")
		}
		s := err.(error).Error()
		if !strings.Contains(s, str) {

	tests := []struct {
		f        func()
		panicStr string
	}{
		{capOutOfRange, "cap out of range"},
		{lenOutOfRange, "len out of range"},
	}

	for _, tc := range tests {
		shouldPanic(tc.panicStr, tc.f)
	}

}

func shouldPanic(str string, f func()) {
	defer func() {
		err := recover()
		runtimeErr := err.(error).Error()
		if !strings.Contains(runtimeErr, str) {
			panic("got panic " + runtimeErr + ", want " + str)

	xa := [8]int{10, 20, 30, 40, 50, 60, 70, 80}

	vs := ValueOf(&xs).Elem()
	shouldPanic("SetLen", func() { vs.SetLen(10) })
	shouldPanic("SetCap", func() { vs.SetCap(10) })
	shouldPanic("SetLen", func() { vs.SetLen(-1) })
	shouldPanic("SetCap", func() { vs.SetCap(-1) })
	shouldPanic("SetCap", func() { vs.SetCap(6) }) // smaller than len
	vs.SetLen(5)
	if len(xs) != 5 || cap(xs) != 8 {

	p64 := (*int64)(u)   // misaligned

	shouldPanic(t, "Load64", func() { atomic.Load64(up64) })
	shouldPanic(t, "Loadint64", func() { atomic.Loadint64(p64) })
	shouldPanic(t, "Store64", func() { atomic.Store64(up64, 0) })
	shouldPanic(t, "Xadd64", func() { atomic.Xadd64(up64, 1) })
	shouldPanic(t, "Xchg64", func() { atomic.Xchg64(up64, 1) })
	shouldPanic(t, "Cas64", func() { atomic.Cas64(up64, 1, 2) })
}

		istrue(x == y)
		istrue(bool(b))

		m := make(map[string][10]interface{})
		b = m["x"] == m["y"]
		istrue(m["x"] == m["y"])
		istrue(bool(b))
	}

	shouldPanic(p1)
	shouldPanic(p2)
	shouldPanic(p3)
	shouldPanic(p4)
}

func p1() {
	var a []int
	var ia interface{} = a
	use(ia == ia)
}

func p2() {
	var b []int
	var ib interface{} = b
	use(ib == ib)
}

			args := []reflect.Value{
				reflect.ValueOf(x).Convert(xt),
				reflect.ValueOf(s).Convert(st),
			}
			if s < 0 {
				shouldPanic(func() {
					f.Call(args)
				})
			} else {
				f.Call(args) // should not panic
			}
		}
	}
}

func shouldPanic(f func()) {
	defer func() {
		if recover() == nil {
			panic("did not panic")
		}
	}()
	f()

			if test.a == test.b {
				panic(fmt.Sprintf("values %#v and %#v should not be equal", test.a, test.b))
			}
		}
		if test.panic {
			shouldPanic(fmt.Sprintf("comparing %#v and %#v did not panic", test.a, test.b), f)
		} else {
			f() // should not panic
		}
	}
}

func shouldPanic(name string, f func()) {
	defer func() {
		if recover() == nil {
			panic(name)
		}
	}()
	f()