Retracted: v1.8.0–v1.9.0 broke reflect.DeepEqual for Map/Set due to an unexported func field in the tree struct. Fixed in v1.10.0.

masker

package

v1.9.0 Latest Latest Go to latest Published: Mar 2, 2026 License: Apache-2.0 Imports: 2 Imported by: 0

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type Masker uint16

Masker represents a set of one-bits and the ability to enumerate them.

func NewMasker(i int) Masker

func (m Masker) First() Masker

First returns a masker with only the low bit of m.

func (m Masker) FirstIndex() int

func (m Masker) FirstIsIn(n Masker) bool

FirstIsIn returns true if, and only if, the low bit of m is also in n.

func (m Masker) Next() Masker

Next strips the low bit off a Masker.

func (m Masker) String() string

func (m Masker) SubsetOf(mask Masker) bool