As a slight digression - I thought I was going mad, but 'slices' and 'maps' are new :-) Only in 1.21 though...
Well, there is a lot of boiler plate that maps.Keys() will get rid of. On Thursday, 13 July 2023 at 10:06:01 UTC+1 Brian Candler wrote: > Structs are already comparable, but all fields must be the same: > https://go.dev/play/p/XwhSz4DEDwL > > I think your solution with function 'eq' is fine. You can see the same > thing in the standard library in slices.CompactFunc and slices.EqualFunc > https://pkg.go.dev/slices#CompactFunc > https://pkg.go.dev/slices#EqualFunc > > For the case of "ordered" rather than "comparable", have a look at > slices.BinarySearchFunc and related functions. > > On Thursday, 13 July 2023 at 09:29:38 UTC+1 Mark wrote: > >> I have a package which has a function `Do[T comparable](a, b []T) Result`. >> I have a struct: >> ```go >> type N struct { >> x int >> y int >> t string >> } >> ``` >> Is it possible to make `N` comparable; in particular by a field of my >> choice, e.g., `t`? >> >> Or will I have to make, say, `DoFunc(a, b []N, eq func(i, j N) bool) >> Result` with, say, >> `func eq(i, j N) { return i.t == j.t }`? >> > -- 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/2e40af3c-b032-4cc6-be67-36aaef1e8e71n%40googlegroups.com.
