Documentation
¶
Overview ¶
Package xoroshiro1024s implements xoroshiro1024* 1.0, our large-state generator for floating-point numbers. We suggest to use its upper bits for floating-point generation, as it is slightly faster than xoroshiro1024++/xoroshiro1024**. Its state however is too large--in general, the xoshiro256 family should be preferred. It is a better replacement for xorshift1024*.
It passes all tests we are aware of except for the lowest three bits, which might fail linearity tests (and just those), so if low linear complexity is not considered an issue (as it is usually the case) it can be used to generate 64-bit outputs, too.
We suggest to use a sign test to extract a random Boolean value, and right shifts to extract subsets of bits.
The state must be seeded so that it is not everywhere zero. If you have a 64-bit seed, we suggest to seed a splitmix64 generator and use its output to fill s.
Index ¶
Examples ¶
Constants ¶
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Variables ¶
This section is empty.
Functions ¶
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Types ¶
type Source ¶
type Source struct {
// contains filtered or unexported fields
}
Source is a random source using xoroshiro1024* algorithm.
Go port of http://prng.di.unimi.it/xoroshiro1024star.c
Example ¶
package main
import (
"fmt"
"math/rand"
"github.com/shogo82148/randsrc/xoroshiro1024s"
)
func main() {
var src xoroshiro1024s.Source
src.Seed(1)
r := rand.New(&src)
for i := 0; i < 10; i++ {
fmt.Println(r.Int63())
}
}
Output: 5342038924001916882 2683941550217555709 6531581289886261224 3106969537905429597 6043697972756256704 5421517191659664927 3817051424625445335 2737981803588876732 1056458538821463057 1993465107093549081
Source Files