bitset

README

This package implements some features similar to C++'s bitset.

Why not make bitset a type?

Often you might need to do:

result := (bitset1 | bitset2) & bitset3

If bitset was a type, you'd have to cast quite a bit to achieve this:

result := Bitset(uint64(bitset1) | uint64(bitset2)) & uint64(bitset3))

It would be tempting then to make methods And and Or, etc but this also hurts readability.

result := (bitset1.Or(bitset2)).And(bitset3)

Documentation

Index

• func Clear(bitset *uint64, index int)
• func Count(bitset uint64) int
• func EachSetBit(bitset uint64, callback func(i int))
• func IsSet(bitset uint64, index int) bool
• func Set(bitset *uint64, index int)

Functions

func Clear

func Clear(bitset *uint64, index int)

Clear sets the bit at index to 0.

func Count

func Count(bitset uint64) int

Count returns the amount of set bits in the bitset.

func EachSetBit

func EachSetBit(bitset uint64, callback func(i int))

EachSetBit calls the callback for each set bit in the bitset.

func IsSet

func IsSet(bitset uint64, index int) bool

IsSet returns true if the bit at index is set.

func Set

func Set(bitset *uint64, index int)

Set sets the bit at index to 1.