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 46 47 48
|
// Copyright (c) 2011 CZ.NIC z.s.p.o. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// blame: jnml, labs.nic.cz
// +build ignore
package main
import (
"bufio"
"flag"
"modernc.org/mathutil"
"log"
"math"
"os"
)
/*
$ # Usage e.g.:
$ go run example.go -max 1024 > mathutil.dat # generate 1kB of "random" data
*/
func main() {
r, err := mathutil.NewFC32(math.MinInt32, math.MaxInt32, true)
if err != nil {
log.Fatal(err)
}
var mflag uint64
flag.Uint64Var(&mflag, "max", 0, "limit output to max bytes")
flag.Parse()
stdout := bufio.NewWriter(os.Stdout)
if mflag != 0 {
for i := uint64(0); i < mflag; i++ {
if err := stdout.WriteByte(byte(r.Next())); err != nil {
log.Fatal(err)
}
}
stdout.Flush()
return
}
for stdout.WriteByte(byte(r.Next())) == nil {
}
}
|