1 // compile 2 3 // Copyright 2014 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // /tmp/x.go:5: cannot use _ as value 8 9 package p 10 11 func f(ch chan int) bool { 12 select { 13 case _, ok := <-ch: 14 return ok 15 } 16 _, ok := <-ch 17 _ = ok 18 select { 19 case _, _ = <-ch: 20 return true 21 } 22 return false 23 } 24
