bitset is a library written in golang implementing a BitSet data structure.
First install the library with
go get xojoc.pw/bitset
...then run...
go test
if something fails open an issue.
As an example let's list all the composite numbers below 10:
package main
import (
"fmt"
"xojoc.pw/bitset"
)
func main() {
c := &bitset.BitSet{}
// Set all prime numbers to true.
c.Set(2)
c.Set(3)
c.Set(5)
c.Set(7)
c.ToggleRange(1,10+1)
for i := 1; i < c.Len(); i++ {
if c.Get(i) {
fmt.Printf("%d is composite\n", i)
}
}
}
Output:
1 is composite
4 is composite
6 is composite
8 is composite
9 is composite
10 is composite
see godoc for the complete documentation.
- Great and stable API
- Lots of tests, fuzzing and quicktesting!
- Good documentation with lots of examples.
Also see why use xojoc.pw/bitset and not math/big.
bitset was written by Alexandru Cojocaru.
bitset is Free Software and in the Public Domain. No warranty.