Crate lazyrand

It is a simple library for generating random numbers easily. The random seed is automatically initialized. But this library is not cryptographically secure. It is based on xoshiro256plusplus.

Examples

Generate random number

let num = lazyrand::randint(1, 6);
println!("random number = {}", num);

Generate random number with seed. It can be used to generate the same random number sequence.

lazyrand::set_seed(123456);
let n1 = lazyrand::rand();
let n2 = lazyrand::rand();
let n3 = lazyrand::rand();
println!("nums = [{}, {}, {}]", n1, n2, n3);

Generate random floating point number

let f = lazyrand::rand_f64();
println!("num = {}", f);

Examples - Shuffle

Shuffle slice

let mut a = vec![1, 2, 3, 4, 5];
lazyrand::shuffle(&mut a);
println!("shuffled = {:?}", a);

Choice one element from slice

// choice one number from slice
let mut a = vec![1, 2, 3];
let n = lazyrand::choice(&a);
println!("choice = {:?}", n);
// choice one &str from slice
let mut a = vec!["apple", "banana", "orange"];
let s = lazyrand::choice(&a);
println!("choice = {:?}", s);

Examples with Random struct

Generate random number with Random struct

let mut random = lazyrand::Random::new();
println!("random number = {}", random.randint(1, 6));

Modules

• lazyrand_time

Structs

• Random

Enums

• SeedTag

Functions

• choice
  pick up one element from slice
• generate_seed
  generate seed
• get_tag
  get tag
• rand
  generate random number in range [0, u64::MAX]
• rand_bool
  generate random value true or false
• rand_f64
  generate random float in range 0.0 < 1.0
• rand_isize
  generate random isize
• rand_usize
  generate random usize
• randint
  generate random number in range [min, max]
• set_seed
  set random seed
• set_seed_plus
  set random seed
• set_tag
  set tag
• shuffle
  shuffle slice
• srand
  set random seed