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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/go.test/test/chan/select.go
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Diffstat (limited to 'gcc/testsuite/go.test/test/chan/select.go')
-rw-r--r--gcc/testsuite/go.test/test/chan/select.go56
1 files changed, 56 insertions, 0 deletions
diff --git a/gcc/testsuite/go.test/test/chan/select.go b/gcc/testsuite/go.test/test/chan/select.go
new file mode 100644
index 000000000..be4eb3f42
--- /dev/null
+++ b/gcc/testsuite/go.test/test/chan/select.go
@@ -0,0 +1,56 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2009 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.
+
+package main
+
+var counter uint
+var shift uint
+
+func GetValue() uint {
+ counter++
+ return 1 << shift
+}
+
+func Send(a, b chan uint) int {
+ var i int
+
+LOOP:
+ for {
+ select {
+ case a <- GetValue():
+ i++
+ a = nil
+ case b <- GetValue():
+ i++
+ b = nil
+ default:
+ break LOOP
+ }
+ shift++
+ }
+ return i
+}
+
+func main() {
+ a := make(chan uint, 1)
+ b := make(chan uint, 1)
+ if v := Send(a, b); v != 2 {
+ println("Send returned", v, "!= 2")
+ panic("fail")
+ }
+ if av, bv := <-a, <-b; av|bv != 3 {
+ println("bad values", av, bv)
+ panic("fail")
+ }
+ if v := Send(a, nil); v != 1 {
+ println("Send returned", v, "!= 1")
+ panic("fail")
+ }
+ if counter != 10 {
+ println("counter is", counter, "!= 10")
+ panic("fail")
+ }
+}