// Note: in many situations, the newer [slices.SortStableFunc] function is more
// ergonomic and runs faster.
func SliceStable(x any, less func(i, j int) bool) {
	rv := reflectlite.ValueOf(x)
	swap := reflectlite.Swapper(x)
	stable_func(lessSwap{less, swap}, rv.Len())
}

// SliceIsSorted reports whether the slice x is sorted according to the provided less function.
// It panics if x is not a slice.
//