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/// Compute a + b + carry, returning the result and the new carry over.
#[inline(always)]
pub const fn adc(a: u64, b: u64, carry: u64) -> (u64, u64) {
let ret = (a as u128) + (b as u128) + (carry as u128);
(ret as u64, (ret >> 64) as u64)
}

/// Compute a - (b + borrow), returning the result and the new borrow.
#[inline(always)]
pub const fn sbb(a: u64, b: u64, borrow: u64) -> (u64, u64) {
let ret = (a as u128).wrapping_sub((b as u128) + ((borrow >> 63) as u128));
(ret as u64, (ret >> 64) as u64)
}

/// Compute a + (b * c) + carry, returning the result and the new carry over.
#[inline(always)]
pub const fn mac(a: u64, b: u64, c: u64, carry: u64) -> (u64, u64) {
let ret = (a as u128) + ((b as u128) * (c as u128)) + (carry as u128);
(ret as u64, (ret >> 64) as u64)
}

($lhs:ident,$rhs:ident, $output:ident) => { impl<'b> Add<&'b$rhs> for $lhs { type Output =$output;

#[inline]
fn add(self, rhs: &'b $rhs) ->$output {
&self + rhs
}
}

impl<'a> Add<$rhs> for &'a$lhs {
type Output = $output; #[inline] fn add(self, rhs:$rhs) -> $output { self + &rhs } } impl Add<$rhs> for $lhs { type Output =$output;

#[inline]
fn add(self, rhs: $rhs) ->$output {
&self + &rhs
}
}
};
}

macro_rules! impl_sub_binop_specify_output {
($lhs:ident,$rhs:ident, $output:ident) => { impl<'b> Sub<&'b$rhs> for $lhs { type Output =$output;

#[inline]
fn sub(self, rhs: &'b $rhs) ->$output {
&self - rhs
}
}

impl<'a> Sub<$rhs> for &'a$lhs {
type Output = $output; #[inline] fn sub(self, rhs:$rhs) -> $output { self - &rhs } } impl Sub<$rhs> for $lhs { type Output =$output;

#[inline]
fn sub(self, rhs: $rhs) ->$output {
&self - &rhs
}
}
};
}

($lhs:ident,$rhs:ident, $output:ident) => { impl_add_binop_specify_output!($lhs, $rhs,$output);
impl_sub_binop_specify_output!($lhs,$rhs, $output); }; } macro_rules! impl_binops_multiplicative_mixed { ($lhs:ident, $rhs:ident,$output:ident) => {
impl<'b> Mul<&'b $rhs> for$lhs {
type Output = $output; #[inline] fn mul(self, rhs: &'b$rhs) -> $output { &self * rhs } } impl<'a> Mul<$rhs> for &'a $lhs { type Output =$output;

#[inline]
fn mul(self, rhs: $rhs) ->$output {
self * &rhs
}
}

impl Mul<$rhs> for$lhs {
type Output = $output; #[inline] fn mul(self, rhs:$rhs) -> $output { &self * &rhs } } }; } macro_rules! impl_binops_additive { ($lhs:ident, $rhs:ident) => { impl_binops_additive_specify_output!($lhs, $rhs,$lhs);

impl SubAssign<$rhs> for$lhs {
#[inline]
fn sub_assign(&mut self, rhs: $rhs) { *self = &*self - &rhs; } } impl AddAssign<$rhs> for $lhs { #[inline] fn add_assign(&mut self, rhs:$rhs) {
*self = &*self + &rhs;
}
}

impl<'b> SubAssign<&'b $rhs> for$lhs {
#[inline]
fn sub_assign(&mut self, rhs: &'b $rhs) { *self = &*self - rhs; } } impl<'b> AddAssign<&'b$rhs> for $lhs { #[inline] fn add_assign(&mut self, rhs: &'b$rhs) {
*self = &*self + rhs;
}
}
};
}

macro_rules! impl_binops_multiplicative {
($lhs:ident,$rhs:ident) => {
impl_binops_multiplicative_mixed!($lhs,$rhs, $lhs); impl MulAssign<$rhs> for $lhs { #[inline] fn mul_assign(&mut self, rhs:$rhs) {
*self = &*self * &rhs;
}
}

impl<'b> MulAssign<&'b $rhs> for$lhs {
#[inline]
fn mul_assign(&mut self, rhs: &'b \$rhs) {
*self = &*self * rhs;
}
}
};
}