go-generics/codes/type_inference.go

// MAP OMIT
func Map[F, T any](s []F, f func(F) T) []T { ... }
// MAP OMIT


// MAP CALL OMIT
var s []int
f := func(i int) int64 { return int64(i) }
var r []int64
// Specify both type arguments explicitly.
r = Map[int, int64](s, f)
// Specify just the first type argument, for F,
// and let T be inferred.
r = Map[int](s, f)
// Don't specify any type arguments, and let both be inferred.
r = Map(s, f)

// MAP CALL OMIT


// ERR OMIT

func Double[T interface{ ~int }](v T) T { 
	return v * 2 
}

Double(1) // 

// ERR OMIT