bitset: rename BitSet to Bitset

bitset.go

@@ -3,7 +3,7 @@ package bitset
 const word = uint64(64)
 const logword = uint(6)
 
-type BitSet struct {
+type Bitset struct {
 	length uint64
 	bits   []uint64
 }
@@ -12,9 +12,9 @@ func getSize(length uint64) uint64 {
 	return uint64((length + word - 1) / word)
 }
 
-func New(length uint64) *BitSet {
+func New(length uint64) *Bitset {
 	size := getSize(length)
-	return &BitSet{
+	return &Bitset{
 		length,
 		make([]uint64, size),
 	}
@@ -26,31 +26,31 @@ func getIndex(pos uint64) (q uint64, r uint) {
 	return
 }
 
-func (b *BitSet) Length() uint64 {
+func (b *Bitset) Length() uint64 {
 	return b.length
 }
 
-func (b *BitSet) Get(pos uint64) bool {
+func (b *Bitset) Get(pos uint64) bool {
 	q, r := getIndex(pos)
 	bit := (b.bits[q] >> r) & 1
 	return bit != 0
 }
 
-func (b *BitSet) Set(pos uint64) bool {
+func (b *Bitset) Set(pos uint64) bool {
 	current := b.Get(pos)
 	q, r := getIndex(pos)
 	b.bits[q] |= (1 << r)
 	return current
 }
 
-func (b *BitSet) Clear(pos uint64) bool {
+func (b *Bitset) Clear(pos uint64) bool {
 	current := b.Get(pos)
 	q, r := getIndex(pos)
 	b.bits[q] &= ^(1 << r)
 	return current
 }
 
-func (b *BitSet) Flip(pos uint64) bool {
+func (b *Bitset) Flip(pos uint64) bool {
 	current := b.Get(pos)
 	q, r := getIndex(pos)
 	b.bits[q] ^= (1 << r)