func ReadInt(r *bit.Reader) int {
nbits := uint(0)
zero, err := r.ReadBit(), r.Error()
for err == nil && zero == 0 {
nbits += 1
zero, err = r.ReadBit(), r.Error()
}
if nbits == 0 || err != nil {
return 0
}
x := r.ReadBits(nbits - 1)
x = x<<1 | 1
x = bit.Reverse(x, nbits)
sign := r.ReadBit()
v := int(x)
if sign == 1 {
v = -v
}
return v
}
func WriteUint(w *bit.Writer, v uint) {
if v == 0 {
w.WriteBit(1)
return
}
nbits := bit.ScanRight(uint64(v)) + 1
w.WriteBits(0, nbits)
rbits := bit.Reverse(uint64(v), nbits)
w.WriteBits(rbits, nbits)
}
func ReadUint(r *bit.Reader) uint {
nbits := uint(0)
zero, err := r.ReadBit(), r.Error()
for err == nil && zero == 0 {
nbits += 1
zero, err = r.ReadBit(), r.Error()
}
if nbits == 0 || err != nil {
return 0
}
x := r.ReadBits(nbits - 1)
x = x<<1 | 1
x = bit.Reverse(x, nbits)
return uint(x)
}
func WriteInt(w *bit.Writer, v int) {
if v == 0 {
w.WriteBit(1)
return
}
sign := 0
if v < 0 {
sign = 1
v = -v
}
nbits := bit.ScanRight(uint64(v)) + 1
w.WriteBits(0, nbits)
rbits := bit.Reverse(uint64(v), nbits)
w.WriteBits(rbits, nbits)
w.WriteBit(sign)
}