When you write [S []any], this means "S must have type []any". `[]int` has type `[]int`, which is different from `[]any`, so this doesn't work - and it can't work: https://blog.merovius.de/posts/2018-06-03-why-doesnt-go-have-variance-in/
When you write [E any, S []E], you say "E must be any type and S must have type []E". This *can* be instantiated using `[]int`, because `int` can take the place of `E` (it is "any type") and then `[]int` has type `[]E` and everything is great. On Wed, May 11, 2022 at 5:45 PM Michel Casabianca < michel.casabia...@gmail.com> wrote: > Hi gophers! > > This code https://go.dev/play/p/QHIxegJn3aj doesn't compile. I don't > understand why. Anyone would have an explanation? And why this code > https://go.dev/play/p/PCSzRkLvXhp fixes it? > > Thanks for your replies > Best regards > -- > Michel Casabianca > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/18738918-be16-4b0b-825e-e01f7d9c6225n%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/18738918-be16-4b0b-825e-e01f7d9c6225n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAEkBMfEb2h5HDOvR7f_3eHvRJh3YQDPMJ6Lsd70_bQ6gcuvR9Q%40mail.gmail.com.