}
	}
}

func TestLastIndexByte(t *testing.T) {
	testCases := []IndexTest{
		{"", "q", -1},
		{"abcdef", "q", -1},
		{"abcdefabcdef", "a", len("abcdef")},      // something in the middle
		{"abcdefabcdef", "f", len("abcdefabcde")}, // last byte
		{"zabcdefabcdef", "z", 0},                 // first byte
		{"a☺b☻c☹d", "b", len("a☺")},               // non-ascii
	}
	for _, test := range testCases {

		}
	}
}

func TestLastIndexByte(t *testing.T) {
	testCases := []BinOpTest{
		{"", "q", -1},
		{"abcdef", "q", -1},
		{"abcdefabcdef", "a", len("abcdef")},      // something in the middle
		{"abcdefabcdef", "f", len("abcdefabcde")}, // last byte
		{"zabcdefabcdef", "z", 0},                 // first byte
		{"a☺b☻c☹d", "b", len("a☺")},               // non-ascii
	}
	for _, test := range testCases {

		},
	}
}


// alignment of map composite entries
var _ = map[int]int{
	// small key sizes: always align even if size ratios are large
	a: a,
	abcdefghabcdefgh: a,
	ab: a,
	abc: a,
	abcdefgabcdefg: a,
	abcd: a,
	abcde: a,
	abcdef: a,

	// mixed key sizes: align when key sizes change within accepted ratio
	abcdefgh: a,
	abcdefghabcdefg: a,
	abcdefghij: a,

		},
	}
}

// alignment of map composite entries
var _ = map[int]int{
	// small key sizes: always align even if size ratios are large
	a:			a,
	abcdefghabcdefgh:	a,
	ab:			a,
	abc:			a,
	abcdefgabcdefg:		a,
	abcd:			a,
	abcde:			a,
	abcdef:			a,

	// mixed key sizes: align when key sizes change within accepted ratio
	abcdefgh:		a,
	abcdefghabcdefg:	a,
	abcdefghij:		a,