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go/test/fixedbugs/issue4316.go
Emmanuel Odeke 53fd522c0d all: make copyright headers consistent with one space after period
Follows suit with https://go-review.googlesource.com/#/c/20111.

Generated by running
$ grep -R 'Go Authors.  All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go
Authors.  All/Go Authors. All/g' $F;done

The code in cmd/internal/unvendor wasn't changed.

Fixes #15213

Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f
Reviewed-on: https://go-review.googlesource.com/21819
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-05-02 13:43:18 +00:00

65 lines
972 B
Go

// run
// 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.
// Issue 4316: the stack overflow check in the linker
// is confused when it encounters a split-stack function
// that needs 0 bytes of stack space.
package main
type Peano *Peano
func makePeano(n int) *Peano {
if n == 0 {
return nil
}
p := Peano(makePeano(n - 1))
return &p
}
var countArg Peano
var countResult int
func countPeano() {
if countArg == nil {
countResult = 0
return
}
countArg = *countArg
countPeano()
countResult++
}
var s = "(())"
var pT = 0
func p() {
if pT >= len(s) {
return
}
if s[pT] == '(' {
pT += 1
p()
if pT < len(s) && s[pT] == ')' {
pT += 1
} else {
return
}
p()
}
}
func main() {
countArg = makePeano(4096)
countPeano()
if countResult != 4096 {
println("countResult =", countResult)
panic("countResult != 4096")
}
p()
}