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// Copyright © 2026 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
use crate::num::arithmetic::traits::{
CanonicalPrimitivePart, CanonicalPrimitivePartAssign, ContentAndCanonicalPrimitivePart,
ContentAndPrimitivePart, PrimitivePart, PrimitivePartAssign,
};
use crate::num::basic::unsigneds::PrimitiveUnsigned;
use crate::unsigned_polynomial::UnsignedPolynomial;
impl<T: PrimitiveUnsigned> CanonicalPrimitivePart for UnsignedPolynomial<T> {
type Output = Self;
/// Computes the canonical primitive part of an [`UnsignedPolynomial`], taking the polynomial by
/// value.
///
/// The coefficients of an [`UnsignedPolynomial`] are never negative, so it has only one
/// associate with coprime coefficients, and this is the same as
/// [`primitive_part`](PrimitivePart::primitive_part).
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(1)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `self.len()`.
///
/// # Examples
/// ```
/// use core::str::FromStr;
/// use malachite_base::num::arithmetic::traits::CanonicalPrimitivePart;
/// use malachite_base::unsigned_polynomial::UnsignedPolynomial;
///
/// let p = UnsignedPolynomial::<u8>::from_str("6*x^2+4*x+10").unwrap();
/// assert_eq!(p.canonical_primitive_part().to_string(), "3*x^2+2*x+5");
/// ```
#[inline]
fn canonical_primitive_part(self) -> Self {
self.primitive_part()
}
}
impl<T: PrimitiveUnsigned> CanonicalPrimitivePart for &UnsignedPolynomial<T> {
type Output = UnsignedPolynomial<T>;
/// Computes the canonical primitive part of an [`UnsignedPolynomial`], taking the polynomial by
/// reference.
///
/// The coefficients of an [`UnsignedPolynomial`] are never negative, so it has only one
/// associate with coprime coefficients, and this is the same as
/// [`primitive_part`](PrimitivePart::primitive_part).
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(n)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `self.len()`.
///
/// # Examples
/// ```
/// use core::str::FromStr;
/// use malachite_base::num::arithmetic::traits::CanonicalPrimitivePart;
/// use malachite_base::unsigned_polynomial::UnsignedPolynomial;
///
/// let p = UnsignedPolynomial::<u8>::from_str("6*x^2+4*x+10").unwrap();
/// assert_eq!((&p).canonical_primitive_part().to_string(), "3*x^2+2*x+5");
/// ```
#[inline]
fn canonical_primitive_part(self) -> UnsignedPolynomial<T> {
self.primitive_part()
}
}
impl<T: PrimitiveUnsigned> CanonicalPrimitivePartAssign for UnsignedPolynomial<T> {
/// Replaces an [`UnsignedPolynomial`] with its canonical primitive part.
///
/// The coefficients of an [`UnsignedPolynomial`] are never negative, so it has only one
/// associate with coprime coefficients, and this is the same as
/// [`primitive_part`](PrimitivePart::primitive_part).
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(1)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `self.len()`.
///
/// # Examples
/// ```
/// use core::str::FromStr;
/// use malachite_base::num::arithmetic::traits::CanonicalPrimitivePartAssign;
/// use malachite_base::unsigned_polynomial::UnsignedPolynomial;
///
/// let mut p = UnsignedPolynomial::<u8>::from_str("6*x^2+4*x+10").unwrap();
/// p.canonical_primitive_part_assign();
/// assert_eq!(p.to_string(), "3*x^2+2*x+5");
/// ```
#[inline]
fn canonical_primitive_part_assign(&mut self) {
self.primitive_part_assign();
}
}
impl<T: PrimitiveUnsigned> ContentAndCanonicalPrimitivePart for UnsignedPolynomial<T> {
type Content = T;
type CanonicalPrimitivePart = Self;
/// Computes the content and the canonical primitive part of an [`UnsignedPolynomial`] together,
/// taking the polynomial by value.
///
/// The coefficients of an [`UnsignedPolynomial`] are never negative, so it has only one
/// associate with coprime coefficients, and this is the same as
/// [`primitive_part`](PrimitivePart::primitive_part).
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(1)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `self.len()`.
///
/// # Examples
/// ```
/// use core::str::FromStr;
/// use malachite_base::num::arithmetic::traits::ContentAndCanonicalPrimitivePart;
/// use malachite_base::unsigned_polynomial::UnsignedPolynomial;
///
/// let p = UnsignedPolynomial::<u8>::from_str("6*x^2+4*x+10").unwrap();
/// let (content, primitive_part) = p.content_and_canonical_primitive_part();
/// assert_eq!(content, 2);
/// assert_eq!(primitive_part.to_string(), "3*x^2+2*x+5");
/// ```
#[inline]
fn content_and_canonical_primitive_part(self) -> (T, Self) {
self.content_and_primitive_part()
}
}
impl<T: PrimitiveUnsigned> ContentAndCanonicalPrimitivePart for &UnsignedPolynomial<T> {
type Content = T;
type CanonicalPrimitivePart = UnsignedPolynomial<T>;
/// Computes the content and the canonical primitive part of an [`UnsignedPolynomial`] together,
/// taking the polynomial by reference.
///
/// The coefficients of an [`UnsignedPolynomial`] are never negative, so it has only one
/// associate with coprime coefficients, and this is the same as
/// [`primitive_part`](PrimitivePart::primitive_part).
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(n)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `self.len()`.
///
/// # Examples
/// ```
/// use core::str::FromStr;
/// use malachite_base::num::arithmetic::traits::ContentAndCanonicalPrimitivePart;
/// use malachite_base::unsigned_polynomial::UnsignedPolynomial;
///
/// let p = UnsignedPolynomial::<u8>::from_str("6*x^2+4*x+10").unwrap();
/// let (content, primitive_part) = (&p).content_and_canonical_primitive_part();
/// assert_eq!(content, 2);
/// assert_eq!(primitive_part.to_string(), "3*x^2+2*x+5");
/// ```
#[inline]
fn content_and_canonical_primitive_part(self) -> (T, UnsignedPolynomial<T>) {
self.content_and_primitive_part()
}
}