| // +build go1.9 | |
| package main | |
| import ( | |
| "fmt" | |
| "math/bits" | |
| ) | |
| func main() { | |
| const n = 100 | |
| // START OMIT | |
| fmt.Printf("%d (%b) has %d bits set to one\n", n, n, bits.OnesCount(n)) | |
| fmt.Printf("%d reversed is %d\n", n, bits.Reverse(n)) | |
| fmt.Printf("%d can be encoded in %d bits\n", n, bits.Len(n)) | |
| // END OMIT | |
| } |