malachite_base/num/arithmetic/mod_is_reduced.rs
1// Copyright © 2025 Mikhail Hogrefe
2//
3// This file is part of Malachite.
4//
5// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
6// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
7// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
8
9use crate::num::arithmetic::traits::ModIsReduced;
10
11macro_rules! impl_mod_is_reduced {
12 ($t:ident) => {
13 impl ModIsReduced for $t {
14 /// Returns whether a number is reduced modulo another number $m$; in other words,
15 /// whether it is less than $m$. $m$ cannot be zero.
16 ///
17 /// $f(x, m) = (x < m)$.
18 ///
19 /// # Worst-case complexity
20 /// Constant time and additional memory.
21 ///
22 /// # Panics
23 /// Panics if $m$ is 0.
24 ///
25 /// # Examples
26 /// See [here](super::mod_is_reduced#mod_is_reduced).
27 #[inline]
28 fn mod_is_reduced(&self, m: &$t) -> bool {
29 assert_ne!(*m, 0);
30 self < m
31 }
32 }
33 };
34}
35apply_to_unsigneds!(impl_mod_is_reduced);