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#[macro_export]
macro_rules! group_operation {
($field:ident, $p:ident, $g:ident, $r:ident, $r2:ident, $r3:ident, $inv:ident) => {
impl Group for $field {
type Scalar = $field;
const ADDITIVE_GENERATOR: Self = $field($g);
const ADDITIVE_IDENTITY: Self = $field($r);
fn zero() -> Self {
Self(zero())
}
fn invert(self) -> Option<Self> {
match invert(self.0, little_fermat($p), $r, $p, $inv) {
Some(x) => Some(Self(x)),
None => None,
}
}
fn random(rand: impl RngCore) -> Self {
Self(random_limbs(rand, $r2, $r3, $p, $inv))
}
}
impl PartialEq for $field {
fn eq(&self, other: &Self) -> bool {
self.0[0] == other.0[0]
&& self.0[1] == other.0[1]
&& self.0[2] == other.0[2]
&& self.0[3] == other.0[3]
}
}
impl Eq for $field {}
impl Add for $field {
type Output = Self;
#[inline]
fn add(self, rhs: $field) -> Self {
$field(add(self.0, rhs.0, $p))
}
}
impl AddAssign for $field {
fn add_assign(&mut self, rhs: $field) {
self.0 = add(self.0, rhs.0, $p)
}
}
impl Neg for $field {
type Output = Self;
#[inline]
fn neg(self) -> Self {
$field(neg(self.0, $p))
}
}
impl Sub for $field {
type Output = Self;
#[inline]
fn sub(self, rhs: $field) -> Self {
$field(sub(self.0, rhs.0, $p))
}
}
impl SubAssign for $field {
fn sub_assign(&mut self, rhs: $field) {
self.0 = sub(self.0, rhs.0, $p)
}
}
impl Mul<<Self as Group>::Scalar> for $field {
type Output = Self;
#[inline]
fn mul(self, rhs: $field) -> Self {
$field(mul(self.0, rhs.0, $p, $inv))
}
}
impl MulAssign<<Self as Group>::Scalar> for $field {
fn mul_assign(&mut self, rhs: $field) {
*self = $field(mul(self.0, rhs.0, $p, $inv))
}
}
impl $field {
pub const fn zero() -> Self {
Self(zero())
}
pub const fn one() -> Self {
Self($r)
}
}
};
}
pub use group_operation;