malachite_base/num/arithmetic/
neg.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::NegAssign;
10
11macro_rules! impl_neg_signed {
12    ($t:ident) => {
13        impl NegAssign for $t {
14            /// Negates a number in place.
15            ///
16            /// Assumes that the negative can be represented.
17            ///
18            /// $x \gets -x$.
19            ///
20            /// # Worst-case complexity
21            /// Constant time and additional memory.
22            ///
23            /// # Examples
24            /// See [here](super::neg#neg_assign).
25            #[inline]
26            fn neg_assign(&mut self) {
27                *self = -*self;
28            }
29        }
30    };
31}
32apply_to_signeds!(impl_neg_signed);
33
34macro_rules! impl_neg_float {
35    ($t:ident) => {
36        impl NegAssign for $t {
37            /// Negates a number in place.
38            ///
39            /// Assumes that the negative can be represented.
40            ///
41            /// $x \gets -x$.
42            ///
43            /// # Worst-case complexity
44            /// Constant time and additional memory.
45            ///
46            /// # Examples
47            /// See [here](super::neg#neg_assign).
48            #[inline]
49            fn neg_assign(&mut self) {
50                *self = -*self;
51            }
52        }
53    };
54}
55apply_to_primitive_floats!(impl_neg_float);
malachite_base/num/arithmetic/neg.rs

malachite_base/num/arithmetic/
neg.rs
