round_float 1.1.2

Round `f64` and `f32` to specified number of decimals.
Documentation 
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#![allow(clippy::let_and_return)]

use core::fmt::Debug;

use num_traits::Float;
pub trait RoundToFraction {
    /// Round `float_number` to specified number of digits in the fraction.
    fn round_to_fraction(&self, digits: u32) -> Self
    where
        Self: Float + Debug,
    {
        let rounded_float = if digits == 0 {
            let rounded_float = self.trunc();
            rounded_float
        } else {
            let ten = Self::from(10.0).unwrap();
            let digits = Self::from(digits).unwrap();
            let round_factor = ten * digits;
            let rounded_float = (self.mul(round_factor)).round() / round_factor;
            rounded_float
        };

        rounded_float
    }
}

impl<F> RoundToFraction for F where F: Float {}