1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
|
// +build go1.9
package bitset
import "math/bits"
func popcntSlice(s []uint64) uint64 {
var cnt int
for _, x := range s {
cnt += bits.OnesCount64(x)
}
return uint64(cnt)
}
func popcntMaskSlice(s, m []uint64) uint64 {
var cnt int
for i := range s {
cnt += bits.OnesCount64(s[i] &^ m[i])
}
return uint64(cnt)
}
func popcntAndSlice(s, m []uint64) uint64 {
var cnt int
for i := range s {
cnt += bits.OnesCount64(s[i] & m[i])
}
return uint64(cnt)
}
func popcntOrSlice(s, m []uint64) uint64 {
var cnt int
for i := range s {
cnt += bits.OnesCount64(s[i] | m[i])
}
return uint64(cnt)
}
func popcntXorSlice(s, m []uint64) uint64 {
var cnt int
for i := range s {
cnt += bits.OnesCount64(s[i] ^ m[i])
}
return uint64(cnt)
}
|