Sorry, the first one will get a "type [9223372036854775807]byte larger than 
address space" error.
The following code will get the same error

    var x *[^uint(0) >> 1]byte

Is this error essential?

On Saturday, February 27, 2021 at 11:00:26 PM UTC-5 tapi...@gmail.com wrote:

> 1.
>
> func String2ByteSlice(s string) []byte {
>     return (*[^uint(0) >> 1]byte)(unsafe.Pointer(&s))[:len(s):len(s)]
> }
>
> 2.
>
> func String2ByteSlice(s string) []byte {
>     return *(*[]byte)(unsafe.Pointer(&struct{string; int}{s, len(s)}))
> }
>

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