/rust/registry/src/index.crates.io-1949cf8c6b5b557f/moxcms-0.7.10/src/matan/monotonic.rs
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1 | | /* |
2 | | * // Copyright (c) Radzivon Bartoshyk 6/2025. All rights reserved. |
3 | | * // |
4 | | * // Redistribution and use in source and binary forms, with or without modification, |
5 | | * // are permitted provided that the following conditions are met: |
6 | | * // |
7 | | * // 1. Redistributions of source code must retain the above copyright notice, this |
8 | | * // list of conditions and the following disclaimer. |
9 | | * // |
10 | | * // 2. Redistributions in binary form must reproduce the above copyright notice, |
11 | | * // this list of conditions and the following disclaimer in the documentation |
12 | | * // and/or other materials provided with the distribution. |
13 | | * // |
14 | | * // 3. Neither the name of the copyright holder nor the names of its |
15 | | * // contributors may be used to endorse or promote products derived from |
16 | | * // this software without specific prior written permission. |
17 | | * // |
18 | | * // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
19 | | * // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
20 | | * // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
21 | | * // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
22 | | * // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
23 | | * // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
24 | | * // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
25 | | * // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
26 | | * // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
27 | | * // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | | */ |
29 | | use crate::matan::is_curve_ascending; |
30 | | |
31 | | /// Finds out if curve is monotonic. |
32 | 0 | pub(crate) fn is_curve_monotonic<T: PartialOrd>(lut: &[T]) -> bool { |
33 | 0 | if lut.len() < 2 { |
34 | 0 | return true; |
35 | 0 | } |
36 | 0 | let is_ascending = is_curve_ascending(lut); |
37 | 0 | let mut violations = 0usize; |
38 | 0 | if is_ascending { |
39 | 0 | for (current, previous) in lut.iter().skip(1).zip(lut.iter().take(lut.len() - 1)) { |
40 | 0 | if current.lt(previous) { |
41 | 0 | violations += 1; |
42 | 0 | } |
43 | | } |
44 | | } else { |
45 | 0 | for (current, previous) in lut.iter().skip(1).zip(lut.iter().take(lut.len() - 1)) { |
46 | 0 | if current.gt(previous) { |
47 | 0 | violations += 1; |
48 | 0 | } |
49 | | } |
50 | | } |
51 | 0 | (violations as f64 / lut.len() as f64) < 0.05 |
52 | 0 | } Unexecuted instantiation: moxcms::matan::monotonic::is_curve_monotonic::<u8> Unexecuted instantiation: moxcms::matan::monotonic::is_curve_monotonic::<u16> |