[RUST/COMMON] 단일 파일에서 복수 모듈 사용하기

■ 단일 파일에서 복수 모듈를 사용하는 방법을 보여준다.

▶ 예제 코드 (RS)


mod random
{
    pub mod linear
    {
        use std::num::Wrapping;

        pub fn get_random_value(seed : &mut u32) -> u32
        {
            let (a, c) = (134775813u32, 12345u32);

            *seed = (Wrapping(*seed) * Wrapping(a) + Wrapping(c)).0;

            return *seed;
        }
    }

    pub mod xorshift
    {
        pub fn get_random_value(seed : &mut u32) -> u32
        {
            let mut y : u32 = *seed;

            y ^= y << 13;
            y ^= y >> 17;
            y ^= y << 5;

            *seed = y;

            return y;
        }
    }
}

use random::{linear, xorshift};

fn main()
{
    let mut seed1 : u32 = 12345u32;
    let mut seed2 : u32 = 12345u32;

    for i in 0..10
    {
        let random_value1 : u32 = linear::get_random_value  (&mut seed1) % 6 + 1;
        let random_value2 : u32 = xorshift::get_random_value(&mut seed2) % 6 + 1;

        println!("{:2} : {}, {}", i + 1, random_value1, random_value2);
    }
}

/*
 1 : 1, 3
 2 : 4, 4
 3 : 3, 5
 4 : 4, 3
 5 : 5, 6
 6 : 6, 1
 7 : 5, 1
 8 : 2, 3
 9 : 3, 5
10 : 6, 5
*/

mod random

{

pub mod linear

{

use std::num::Wrapping;

pub fn get_random_value(seed : &mut u32) -> u32

{

let (a, c) = (134775813u32, 12345u32);

*seed = (Wrapping(*seed) * Wrapping(a) + Wrapping(c)).0;

return *seed;

}

pub mod xorshift

{

pub fn get_random_value(seed : &mut u32) -> u32

{

let mut y : u32 = *seed;

y ^= y << 13;

y ^= y >> 17;

y ^= y << 5;

*seed = y;

return y;

}

use random::{linear, xorshift};

fn main()

{

let mut seed1 : u32 = 12345u32;

let mut seed2 : u32 = 12345u32;

for i in 0..10

{

let random_value1 : u32 = linear::get_random_value (&mut seed1) % 6 + 1;

let random_value2 : u32 = xorshift::get_random_value(&mut seed2) % 6 + 1;

println!("{:2} : {}, {}", i + 1, random_value1, random_value2);

}

1 : 1, 3

2 : 4, 4

3 : 3, 5

4 : 4, 3

5 : 5, 6

6 : 6, 1

7 : 5, 1

8 : 2, 3

9 : 3, 5

10 : 6, 5