honestintervals 0.2.0

Comprehensive, correctly rounding interval arithmetic library.
Documentation 
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use super::capi::*;
use super::def::Mpfr;

use fp::Float;

use std::ops::{Add, Div, Mul, Sub};

impl Mpfr {
    #[inline]
    fn add_custom(mut self, rhs: Mpfr, rounding_mode: MpfrRnd) -> Self {
        assert_eq!(self.precision(), rhs.precision());
        unsafe { mpfr_add(&mut self.mpfr, &self.mpfr, &rhs.mpfr, rounding_mode); }
        self
    }

    #[inline]
    fn sub_custom(mut self, rhs: Mpfr, rounding_mode: MpfrRnd) -> Self {
        assert_eq!(self.precision(), rhs.precision());
        unsafe { mpfr_sub(&mut self.mpfr, &self.mpfr, &rhs.mpfr, rounding_mode); }
        self
    }

    #[inline]
    fn mul_custom(mut self, rhs: Mpfr, rounding_mode: MpfrRnd) -> Self {
        assert_eq!(self.precision(), rhs.precision());
        unsafe { mpfr_mul(&mut self.mpfr, &self.mpfr, &rhs.mpfr, rounding_mode); }
        self
    }

    #[inline]
    fn div_custom(mut self, rhs: Mpfr, rounding_mode: MpfrRnd) -> Self {
        assert_eq!(self.precision(), rhs.precision());
        unsafe { mpfr_div(&mut self.mpfr, &self.mpfr, &rhs.mpfr, rounding_mode); }
        self
    }
}

impl Add<Mpfr> for Mpfr {
    type Output = Mpfr;

    #[inline]
    fn add(self, other: Mpfr) -> Self::Output {
        self.add_custom(other, MpfrRnd::HalfToEven)
    }
}

impl Sub<Mpfr> for Mpfr {
    type Output = Mpfr;

    #[inline]
    fn sub(self, other: Mpfr) -> Self::Output {
        self.sub_custom(other, MpfrRnd::HalfToEven)
    }
}

impl Mul<Mpfr> for Mpfr {
    type Output = Mpfr;

    #[inline]
    fn mul(self, other: Mpfr) -> Self::Output {
        self.mul_custom(other, MpfrRnd::HalfToEven)
    }
}

impl Div<Mpfr> for Mpfr {
    type Output = Mpfr;

    #[inline]
    fn div(self, other: Mpfr) -> Self::Output {
        self.div_custom(other, MpfrRnd::HalfToEven)
    }
}