mirror of
https://github.com/golang/go
synced 2024-11-12 06:20:22 -07:00
70 lines
1.1 KiB
Go
70 lines
1.1 KiB
Go
// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Try to tickle stack splitting bugs by doing
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// go, defer, and closure calls at different stack depths.
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package main
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type T [20] int;
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func g(c chan int, t T) {
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s := 0;
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for i := 0; i < len(t); i++ {
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s += t[i];
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}
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c <- s;
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}
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func d(t T) {
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s := 0;
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for i := 0; i < len(t); i++ {
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s += t[i];
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}
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if s != len(t) {
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panicln("bad defer", s);
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}
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}
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var c = make(chan int);
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var t T;
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var b = []byte{1,2,3,4,5,6,7,8,9,10};
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func recur(n int) {
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ss := string(b);
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if len(ss) != len(b) {
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panic("bad []byte -> string");
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}
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go g(c, t);
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s := <-c;
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if s != len(t) {
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panicln("bad go", s);
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}
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f := func(t T) int {
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s := 0;
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for i := 0; i < len(t); i++ {
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s += t[i];
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}
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s += n;
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return s;
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};
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s = f(t);
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if s != len(t) + n {
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panicln("bad func", s, "at level", n);
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}
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if n > 0 {
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recur(n-1);
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}
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defer d(t);
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}
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func main() {
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for i := 0; i < len(t); i++ {
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t[i] = 1;
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}
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recur(10000);
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}
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