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// compile
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// /tmp/x.go:5: cannot use _ as value
package p
func f(ch chan int) bool {
select {
case _, ok := <-ch:
return ok
}
_, ok := <-ch
_ = ok
select {
case _, _ = <-ch:
return true
}
return false
}
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