wager 0.1.1

Primitive types and functionality for betting odds
Documentation 
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mod rational_approximation;

pub use rational_approximation::rational_approximation;

pub fn simplify_fraction(numerator: u32, denominator: u32) -> (u32, u32) {
    if numerator == 0 || denominator == 0 {
        return (0, 0);
    }

    let gcd = gcd(numerator, denominator);
    let numerator = numerator / gcd;
    let denominator = denominator / gcd;

    (numerator, denominator)
}

pub fn gcd(a: u32, b: u32) -> u32 {
    if b == 0 {
        a
    } else {
        gcd(b, a % b)
    }
}

pub fn lcm(a: u32, b: u32) -> u32 {
    (a * b) / gcd(a, b)
}

#[cfg(test)]
mod tests {
    use super::*;
    use test_case::test_case;
    #[test_case(1, 2, (1, 2))]
    #[test_case(10, 20, (1, 2))]
    #[test_case(46, 23, (2, 1))]
    fn simplify_test(numerator: u32, denominator: u32, expected: (u32, u32)) {
        let result = simplify_fraction(numerator, denominator);
        assert_eq!(result, expected);
    }
}