module rand // init initializes the default RNG. fn init() { default_rng = new_default() } fn internal_string_from_set(mut rng PRNG, charset string, len int) string { result := '' # #const characters = charset.str; #const charactersLength = characters.length; #for (let i = 0;i < len.val;i++) #result.str += characters.charAt(Math.random() * charactersLength); return result } const ( ulid_encoding = '0123456789ABCDEFGHJKMNPQRSTVWXYZ' ) fn internal_ulid_at_millisecond(mut rng PRNG, unix_time_milli u64) string { mut buf := []byte{cap: 27} mut t := unix_time_milli mut i := 9 for i >= 0 { buf[i] = rand.ulid_encoding[int(t & 0x1f)] t = t >> 5 i-- } mut x := rng.u64() i = 10 for i < 19 { buf[i] = rand.ulid_encoding[int(x & 0x1f)] x = x >> 5 i++ } x = rng.u64() for i < 26 { buf[i] = rand.ulid_encoding[int(x & 0x1f)] x = x >> 5 i++ } res := '' println(buf) #res.str = buf.arr.arr.map(String.fromCharCode).join('') return res } fn read_internal(mut rng PRNG, mut buf []byte) { for i in 0 .. buf.len { buf[i] = rng.u8() } }