Maybe an artifact of the C to Go automatic translation tool. > On Feb 25, 2020, at 5:29 PM, 'Keith Randall' via golang-nuts > <golang-nuts@googlegroups.com> wrote: > > > > On Tuesday, February 25, 2020 at 4:10:46 AM UTC-8 dmitry....@jetbrains.com > wrote: > What is the meaning of the conversion > > var b []byte > var p *byte = (*byte)(unsafe.Pointer(*b[0])) > > You mean &b[0] at the end there, not *b[0]. > > > It is used for example in > https://github.com/golang/net/blob/master/internal/socket/iovec_64bit.go > <https://github.com/golang/net/blob/master/internal/socket/iovec_64bit.go>. > > How it is different from > > var b []byte > var p *byte = &b[0] > > > It is not any different. Not sure why the code goes through that hoop > unnecessarily. > Probably historical accident. Maybe go through the change history and see how > it evolved. > > Thank you! > > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com > <mailto:golang-nuts+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/68ad8286-1bcf-4706-ad4c-f33147387c2e%40googlegroups.com > > <https://groups.google.com/d/msgid/golang-nuts/68ad8286-1bcf-4706-ad4c-f33147387c2e%40googlegroups.com?utm_medium=email&utm_source=footer>.
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