mirror of
https://github.com/golang/go
synced 2024-11-22 10:54:46 -07:00
53fd522c0d
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>
60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
// run
|
|
|
|
// Copyright 2014 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
|
|
|
|
import (
|
|
"reflect"
|
|
"runtime"
|
|
"unsafe"
|
|
)
|
|
|
|
func main() {
|
|
test1()
|
|
test2()
|
|
}
|
|
|
|
func test1() {
|
|
var all []interface{}
|
|
for i := 0; i < 100; i++ {
|
|
p := new([]int)
|
|
*p = append(*p, 1, 2, 3, 4)
|
|
h := (*reflect.SliceHeader)(unsafe.Pointer(p))
|
|
all = append(all, h, p)
|
|
}
|
|
runtime.GC()
|
|
for i := 0; i < 100; i++ {
|
|
p := *all[2*i+1].(*[]int)
|
|
if p[0] != 1 || p[1] != 2 || p[2] != 3 || p[3] != 4 {
|
|
println("BUG test1: bad slice at index", i, p[0], p[1], p[2], p[3])
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
type T struct {
|
|
H *reflect.SliceHeader
|
|
P *[]int
|
|
}
|
|
|
|
func test2() {
|
|
var all []T
|
|
for i := 0; i < 100; i++ {
|
|
p := new([]int)
|
|
*p = append(*p, 1, 2, 3, 4)
|
|
h := (*reflect.SliceHeader)(unsafe.Pointer(p))
|
|
all = append(all, T{H: h}, T{P: p})
|
|
}
|
|
runtime.GC()
|
|
for i := 0; i < 100; i++ {
|
|
p := *all[2*i+1].P
|
|
if p[0] != 1 || p[1] != 2 || p[2] != 3 || p[3] != 4 {
|
|
println("BUG test2: bad slice at index", i, p[0], p[1], p[2], p[3])
|
|
return
|
|
}
|
|
}
|
|
}
|