I see!
Thanks a lot!

在 2017年1月20日星期五 UTC+8上午6:40:22,Krzysztof Kowalczyk写道:
>
> It's not and it's easy to test:
>
> Save as t.go:
>
> package main
> import "fmt"
>
> func main() {
>  var s []int
>  for i := 0; i < 100000; i++ {
>  go func(n int) {
>  s = append(s, n)
>  }(i)
>  }
>  fmt.Printf("%d\n", s[0])
> }
>
>
> hen `go run -race t.go` and watch race detector complain.
>
> -- kjk
>
>
> On Thursday, January 19, 2017 at 1:43:13 PM UTC-8, xiaohai dai wrote:
>>
>> I know that map in golang is not thread-safe for writing.
>> However, I'm not sure slice/array is thread-safe for writing. I have 
>> searched the related posts and blogs in google, but find no unambiguous 
>> statement.
>>
>> Thanks in advance! 
>>
>

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