bits

README

bits

bit manipulation

// PopcountUint returns the number of bits set in v
func PopcountUint(v uint) int
func PopcountUint64(v uint64) int

// Bitindex is equivalent to PopcountUint(bmap&(bitpos-1))
func Bitindex(bmap, bitpos uint) int

// PopcountIsIntrinsic returns true if popcount is implemented with a dedicated CPU instruction
func PopcountIsIntrinsic() bool

Documentation

Index

• func Bitindex(bmap, bitpos uint) int
• func PopcountIsIntrinsic() bool
• func PopcountUint(v uint) int
• func PopcountUint64(v uint64) int

Functions

func Bitindex

func Bitindex(bmap, bitpos uint) int

func PopcountIsIntrinsic

func PopcountIsIntrinsic() bool

func PopcountUint

func PopcountUint(v uint) int

func PopcountUint64

func PopcountUint64(v uint64) int