// just a convenient way of documenting (via eqstring_generic)
	// what == does.
	s := []string{
		"",
		"a",
		"c",
		"aaa",
		"ccc",
		"cccc"[:3], // same contents, different string
		"1234567890",
	}
	for _, s1 := range s {
		for _, s2 := range s {
			x := s1 == s2
			y := eqstring_generic(s1, s2)
			if x != y {