Macro random

macro_rules! random {
    ($($proc_macro:tt)*) => { ... };
}

Generate a random number.

Examples

let f: f64 = random_number::random!();

assert!(0.0 <= f && f <= 1.0);

let i: u8 = random_number::random!(..);

assert!(0 <= i && i <= 255);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let f: f64 = random_number::random!(thread_rng);

assert!(0.0 <= f && f <= 1.0);

let i: u8 = random_number::random!(.., thread_rng);

assert!(0 <= i && i <= 255);

let i: u8 = random_number::random!(..=10);

assert!(0 <= i && i <= 10);

let i: i8 = random_number::random!(..=0);

assert!(-128 <= i && i <= 0);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let i: u8 = random_number::random!(..=10, thread_rng);

assert!(0 <= i && i <= 10);

let i: i8 = random_number::random!(..=0, thread_rng);

assert!(-128 <= i && i <= 0);

let i: u8 = random_number::random!(10..);

assert!(10 <= i && i <= 255);

let i: i8 = random_number::random!(0..);

assert!(0 <= i && i <= 127);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let i: u8 = random_number::random!(10.., thread_rng);

assert!(10 <= i && i <= 255);

let i: i8 = random_number::random!(0.., thread_rng);

assert!(0 <= i && i <= 127);

let i: u8 = random_number::random!(..10);

assert!(0 <= i && i <= 9);

let i: i8 = random_number::random!(..0);

assert!(-128 <= i && i <= -1);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let i: u8 = random_number::random!(..10, thread_rng);

assert!(0 <= i && i <= 9);

let i: i8 = random_number::random!(..0, thread_rng);

assert!(-128 <= i && i <= -1);

let i: u8 = random_number::random!(1..10);

assert!(1 <= i && i <= 10);

let i: i8 = random_number::random!(-2..=12);

assert!(-2 <= i && i <= 12);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let i: u8 = random_number::random!(1..10, thread_rng);

assert!(1 <= i && i <= 10);

let i: i8 = random_number::random!(-2..=12, thread_rng);

assert!(-2 <= i && i <= 12);

let i: u8 = random_number::random!(12, 20);

assert!(12 <= i && i <= 20);

let i: i8 = random_number::random!(20, 12);

assert!(12 <= i && i <= 20);

use random_number::rand;

let mut thread_rng = rand::thread_rng();

let i: u8 = random_number::random!(12, 20, thread_rng);

assert!(12 <= i && i <= 20);

let i: i8 = random_number::random!(20, 12, thread_rng);

assert!(12 <= i && i <= 20);