No need. I was just getting very confused trying to follow. > On Oct 25, 2018, at 10:59 AM, jake6...@gmail.com wrote: > > Yes. I was completely mistaken in my post. Apologies. > >> On Wednesday, October 24, 2018 at 12:14:36 PM UTC-4, robert engels wrote: >> I quote >> >> So in the OP's example https://play.golang.org/p/59bpr8TCIge, the function >> A() is assigning a []string to the variadic ...[]interface{}. Since string >> is assignable to interface{}. this is fine. The function B() is assigning a >> []interface{} to the variadic of ...[]string. Since interface{} is not >> assignable to string, this is not allowed. >> >> >>> On Oct 24, 2018, at 11:08 AM, Jan Mercl <0xj...@gmail.com> wrote: >>> >>> Nobody said that. >>> >>>> On Wed, Oct 24, 2018, 18:04 robert engels <ren...@ix.netcom.com> wrote: >>>> I’m confused… it is A that doesn’t work, and B works… everyone keeps >>>> stating that B doesn’t work and A works…. >>>> >>>>> On Oct 24, 2018, at 10:55 AM, jake...@gmail.com wrote: >>>> >>>>> >>>>> That is correct. The relevant part of >>>>> https://golang.org/ref/spec#Passing_arguments_to_..._parameters is where >>>>> it says: " respective parameter passing rulesapply". This links to >>>>> https://golang.org/ref/spec#Passing_arguments_to_..._parameters which >>>>> says: >>>>> >>>>> "Otherwise, the value passed is a new slice of type []T with a new >>>>> underlying array whose successive elements are the actual arguments, >>>>> which all must be assignable to T." >>>>> >>>>> So in the OP's example https://play.golang.org/p/59bpr8TCIge, the >>>>> function A() is assigning a []string to the variadic ...[]interface{}. >>>>> Since string is assignable to interface{}. this is fine. The function B() >>>>> is assigning a []interface{} to the variadic of ...[]string. Since >>>>> interface{} is not assignable to string, this is not allowed. >>>>> >>>>> Hope that clarifies. >>>>> >>>>> >>>>>> On Wednesday, October 24, 2018 at 9:11:50 AM UTC-4, Robert Engels wrote: >>>>>> But it is the varadic one that works according to OP. >>>>>> >>>>>>> On Oct 24, 2018, at 4:19 AM, Jan Mercl <0xj...@gmail.com> wrote: >>>>>>> >>>>>>> On Wed, Oct 24, 2018 at 7:34 AM Mayank Jha <mayank2...@gmail.com> wrote: >>>>>>> >>>>>>> > why does A() not work while B works here, >>>>>>> > https://play.golang.org/p/59bpr8TCIge >>>>>>> >>>>>>> Type mismatch. The compiler is clear about it: >>>>>>> >>>>>>> prog.go:8:12: cannot use s (type []string) as type []interface >>>>>>> {} in append >>>>>>> >>>>>>> From https://golang.org/ref/spec#Appending_and_copying_slices >>>>>>> >>>>>>> ---- >>>>>>> The variadic function append appends zero or more values x to s of type >>>>>>> S, which must be a slice type, >>>>>>> and returns the resulting slice, also of type S. The values x are >>>>>>> passed to a parameter of type ...T >>>>>>> where T is the element typeof S and the respective parameter passing >>>>>>> rules apply. As a special case, >>>>>>> append also accepts a first argument assignable to type []byte with a >>>>>>> second argument of string type >>>>>>> followed by .... This form appends the bytes of the string. >>>>>>> --- >>>>>>> >>>>>>> In the OP code, type T is `interface{}`, but the appended elements have >>>>>>> type `string`. That violates the above quoted specs. >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> -j >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> 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...@googlegroups.com. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>>> >>>>> -- >>>>> 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...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/d/optout. >>>> >>>> >>>> -- >>>> 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...@googlegroups.com. >>>> For more options, visit https://groups.google.com/d/optout. >>> -- >>> -j >>> >> > > -- > 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. > For more options, visit https://groups.google.com/d/optout.
-- 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. For more options, visit https://groups.google.com/d/optout.
