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use Float;
#[cfg(feature = "integer")]
use Integer;
#[cfg(feature = "rational")]
use Rational;
use big_float::ordering1;
use gmp_mpfr_sys::mpfr;
use inner::Inner;
use std::{i32, u32};
use std::cmp::Ordering;
impl PartialEq for Float {
#[inline]
fn eq(&self, other: &Float) -> bool {
unsafe { mpfr::equal_p(self.inner(), other.inner()) != 0 }
}
}
impl PartialOrd for Float {
#[inline]
fn partial_cmp(&self, other: &Float) -> Option<Ordering> {
unsafe {
match mpfr::unordered_p(self.inner(), other.inner()) {
0 => Some(ordering1(mpfr::cmp(self.inner(), other.inner()))),
_ => None,
}
}
}
#[inline]
fn lt(&self, other: &Float) -> bool {
unsafe { mpfr::less_p(self.inner(), other.inner()) != 0 }
}
#[inline]
fn le(&self, other: &Float) -> bool {
unsafe { mpfr::lessequal_p(self.inner(), other.inner()) != 0 }
}
#[inline]
fn gt(&self, other: &Float) -> bool {
unsafe { mpfr::greater_p(self.inner(), other.inner()) != 0 }
}
#[inline]
fn ge(&self, other: &Float) -> bool {
unsafe { mpfr::greaterequal_p(self.inner(), other.inner()) != 0 }
}
}
macro_rules! cmp {
{ $T:ty, $eval:expr } => {
impl PartialEq<$T> for Float {
#[inline]
fn eq(&self, other: &$T) -> bool {
self.partial_cmp(other) == Some(Ordering::Equal)
}
}
impl PartialOrd<$T> for Float {
#[inline]
fn partial_cmp(&self, other: &$T) -> Option<Ordering> {
if self.is_nan() {
return None;
}
Some(ordering1($eval(self.inner(), other)))
}
}
impl PartialEq<Float> for $T {
#[inline]
fn eq(&self, other: &Float) -> bool {
other.eq(self)
}
}
impl PartialOrd<Float> for $T {
#[inline]
fn partial_cmp(&self, other: &Float) -> Option<Ordering> {
other.partial_cmp(self).map(Ordering::reverse)
}
}
}
}
#[cfg(feature = "integer")]
cmp! { Integer, |f, t: &Integer| unsafe { mpfr::cmp_z(f, t.inner()) } }
#[cfg(feature = "rational")]
cmp! { Rational, |f, t: &Rational| unsafe { mpfr::cmp_q(f, t.inner()) } }
cmp! { u32, |f, t: &u32| unsafe { mpfr::cmp_ui(f, (*t).into()) } }
cmp! { i32, |f, t: &i32| unsafe { mpfr::cmp_si(f, (*t).into()) } }
cmp! { f64, |f, t: &f64| unsafe { mpfr::cmp_d(f, *t) } }
cmp! { f32, |f, t: &f32| unsafe { mpfr::cmp_d(f, (*t).into()) } }