sort.go

// Sort "generic"
// https://medium.com/capital-one-tech/closures-are-the-generics-for-go-cb32021fb5b5
type sorter struct {
	len  int
	swap func(i, j int)
	less func(i, j int) bool
}

func (x sorter) Len() int                                           { return x.len }
func (x sorter) Swap(i, j int)                                      { x.swap(i, j) }
func (x sorter) Less(i, j int) bool                                 { return x.less(i, j) }
func sortThis(n int, swap func(i, j int), less func(i, j int) bool) { sort.Sort(sorter{n, swap, less}) }