go select4 源码
golang select4 代码
文件路径：/test/chan/select4.go
// run
// Copyright 2010 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
// Test that a select statement proceeds when a value is ready.
package main
func f() *int {
println("BUG: called f")
return new(int)
}
func main() {
var x struct {
a int
}
c := make(chan int, 1)
c1 := make(chan int)
c <- 42
select {
case *f() = <-c1:
// nothing
case x.a = <-c:
if x.a != 42 {
println("BUG:", x.a)
}
}
}
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