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// Copyright 2012 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
/*
int sync;
void Notify(void)
{
__sync_fetch_and_add(&sync, 1);
}
void Wait(void)
{
while(__sync_fetch_and_add(&sync, 0) == 0) {}
}
*/
import "C"
func main() {
data := 0
go func() {
data = 1
C.Notify()
}()
C.Wait()
_ = data
}
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