assert.Len(t, realServers2, 0, "Expected 0 real servers")
}

func TestIpIsValidForSet(t *testing.T) {
	testCases := []struct {
		isIPv6 bool
		ip     string
		res    bool
	}{
		{
			false,
			"127.0.0.1",
			false,
		},
		{
			false,
			"127.0.0.0",
			false,
		},
		{
			false,
			"127.6.7.8",
			false,
		},

// No locks need to be held.
// Returns true if preemption request was issued to at least one goroutine.
func preemptall() bool {
	res := false
	for _, pp := range allp {
		if pp.status != _Prunning {
			continue
		}
		if preemptone(pp) {
			res = true
		}
	}
	return res
}

// Tell the goroutine running on processor P to stop.

              %add1 = "tf.Add"(%arg0, %arg1) : (tensor<*xi32>, tensor<i32>) -> tensor<*xi32>
              %add2 = "tf.Add"(%add1, %arg1) : (tensor<*xi32>, tensor<i32>) -> tensor<*xi32>
              %res = "tf.Print"(%add2) { message = "add result" } : (tensor<*xi32>) -> (tensor<*xi32>)
              tf_executor.yield %add1, %add2 : tensor<*xi32>, tensor<*xi32>
            }

with the same name as a result parameter is in
<a href="#Declarations_and_scope">scope</a> at the place of the return.
</p>

<pre>
func f(n int) (res int, err error) {
	if _, err := f(n-1); err != nil {
		return  // invalid return statement: err is shadowed
	}
	return
}
</pre>

<h3 id="Break_statements">Break statements</h3>

<p>