gcc/testsuite/go.test/test/struct0.go

   1 // run
   2
   3 // Copyright 2011 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 // Test zero length structs.
   8 // Used to not be evaluated.
   9 // Issue 2232.
  10
  11 package main
  12
  13 func recv(c chan interface{}) struct{} {
  14         return (<-c).(struct{})
  15 }
  16
  17 var m = make(map[interface{}]int)
  18
  19 func recv1(c chan interface{}) {
  20         defer rec()
  21         m[(<-c).(struct{})] = 0
  22 }
  23
  24 func rec() {
  25         recover()
  26 }
  27
  28 func main() {
  29         c := make(chan interface{})
  30         go recv(c)
  31         c <- struct{}{}
  32         go recv1(c)
  33         c <- struct{}{}
  34 }