hmath 0.1.17

Big Integers and Rational Numbers
Documentation 
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use crate::{BigInt, UBigInt, Ratio, ConversionError};
use crate::impl_trivial_try_from;

macro_rules! impl_ref_for_ratios {
    ($t: ty) => (
        impl TryFrom<Ratio> for $t {
            type Error = ConversionError;

            fn try_from(n: Ratio) -> Result<Self, Self::Error> {
                (&n).try_into()
            }
        }
    );
    ($t: ty, $($u: ty), +) => (
        impl_ref_for_ratios!($t);
        impl_ref_for_ratios!($($u),+);
    )
}

macro_rules! impl_ratio_to_int {
    ($t: ty) => (
        impl TryFrom<&Ratio> for $t {
            type Error = ConversionError;

            fn try_from(n: &Ratio) -> Result<Self, Self::Error> {
                n.truncate_bi().try_into()
            }
        }
    );
    ($t: ty, $($u: ty), +) => (
        impl_ratio_to_int!($t);
        impl_ratio_to_int!($($u),+);
    )
}

impl_trivial_try_from!(&Ratio, f32, to_ieee754_f32);
impl_trivial_try_from!(&Ratio, f64, to_ieee754_f64);

impl_ratio_to_int!(u8, u16, u32, u64, usize, u128, i8, i16, i32, i64, isize, i128);

impl_ref_for_ratios!(
    u8, u16, u32, u64, usize, u128,
    i8, i16, i32, i64, isize, i128,
    f32, f64, UBigInt
);

impl From<Ratio> for BigInt {
    fn from(n: Ratio) -> Self {
        n.truncate_bi()
    }
}