On Thu, Mar 1, 2018 at 9:04 AM, <d...@veryhaha.com> wrote:
>
> Is the KeepAlive call in the following example essential? and sufficient?
>
> func ByteSlice2String(bs []byte) (str string) {
> sliceHdr := (*reflect.SliceHeader)(unsafe.Pointer(&bs))
> strHdr := (*reflect.StringHeader)(unsafe.Pointer(&str))
> strHdr.Len = sliceHdr.Len
> strHdr.Data = sliceHdr.Data
> runtime.KeepAlive(&bs) // is this line essential? is it sufficient?
> return
> }
Yes, I think it is both required and sufficient.
Ian
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