[go-nuts] How do you write "member" with the proposed generics draft?

[Juliusz Chroboczek]

I'd be grateful if people could give me an example to help me understand
the generics draft.  Suppose I've got these two functions:

     func MemberInt(x int, a []int) bool {
         for _, v := range a {
               if v == x {
                    return true
               }
         }
         return false
     }

     func MemberIP(x net.IP, a []net.IP) bool {
         for _, v := range a {
             if v.Equal(x) {
                 return true
             }
         }
         return false
     }

I can see how to write a generic "Member" function that takes an extra
equality predicate; but is there a way to write a function that
generalises both functions above without requiring the extra parameter?

Thanks.

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