moxcms/math/
mod.rs

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#![allow(clippy::approx_constant, clippy::manual_range_contains)]
30
31use num_traits::Num;
32
33#[inline(always)]
34pub const fn rounding_div_ceil(value: i32, div: i32) -> i32 {
35    (value + div - 1) / div
36}
37
38// Generic function for max
39#[inline(always)]
40pub(crate) fn m_max<T: Num + PartialOrd>(a: T, b: T) -> T {
41    if a > b { a } else { b }
42}
43
44// Generic function for min
45#[inline(always)]
46pub(crate) fn m_min<T: Num + PartialOrd>(a: T, b: T) -> T {
47    if a < b { a } else { b }
48}
49
50#[inline]
51pub(crate) fn m_clamp<T: Num + PartialOrd>(a: T, min: T, max: T) -> T {
52    if a > max {
53        max
54    } else if a >= min {
55        a
56    } else {
57        // a < min or a is NaN
58        min
59    }
60}
61
62pub trait FusedMultiplyAdd<T> {
63    fn mla(&self, b: T, c: T) -> T;
64}
65
66pub(crate) trait FusedMultiplyNegAdd<T> {
67    fn neg_mla(&self, b: T, c: T) -> T;
68}
moxcms/math/mod.rs

moxcms/math/
mod.rs
