go bug199 源码
golang bug199 代码
文件路径：/test/fixedbugs/bug199.go
// run
// 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
type S struct {
a []int
}
var s = &S{make([]int, 10)}
func main() {
s.a[f()] = 1 // 6g used to call f twice here
}
var n int
func f() int {
if n++; n > 1 {
println("f twice")
panic("fail")
}
return 0
}
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