Trait factorial::DoubleFactorial

pub trait DoubleFactorial<Target = Self> {
    // Required method
    fn checked_double_factorial(&self) -> Option<Target>;

    // Provided method
    fn double_factorial(&self) -> Target { ... }
}

Unary operator for computing the double factorial of a number

Implements checked and unchecked versions of the formula

Required Methods

fn checked_double_factorial(&self) -> Option<Target>

Provided Methods

fn double_factorial(&self) -> Target

Implementors

impl<T: PartialOrd + Unsigned + CheckedMul + Copy> DoubleFactorial for T