argmin_math/ndarray_m/
zero.rs

1// Copyright 2018-2024 argmin developers
2//
3// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
4// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
5// http://opensource.org/licenses/MIT>, at your option. This file may not be
6// copied, modified, or distributed except according to those terms.
7
8use crate::{ArgminZero, ArgminZeroLike};
9use num_traits::Zero;
10
11impl<T> ArgminZeroLike for ndarray::Array1<T>
12where
13    T: Zero + ArgminZero + Clone,
14{
15    #[inline]
16    fn zero_like(&self) -> ndarray::Array1<T> {
17        ndarray::Array1::zeros(self.raw_dim())
18    }
19
20    // #[inline]
21    // fn zero() -> ndarray::Array1<T> {
22    //     ndarray::Array1::zeros(0)
23    // }
24}
25
26impl<T> ArgminZeroLike for ndarray::Array2<T>
27where
28    T: Zero + ArgminZero + Clone,
29{
30    #[inline]
31    fn zero_like(&self) -> ndarray::Array2<T> {
32        ndarray::Array2::zeros(self.raw_dim())
33    }
34
35    // #[inline]
36    // fn zero() -> ndarray::Array2<T> {
37    //     ndarray::Array2::zeros((0, 0))
38    // }
39}
40
41// All code that does not depend on a linked ndarray-linalg backend can still be tested as normal.
42// To avoid dublicating tests and to allow convenient testing of functionality that does not need ndarray-linalg the tests are still included here.
43// The tests expect the name for the crate containing the tested functions to be argmin_math
44#[cfg(test)]
45use crate as argmin_math;
46include!(concat!(
47    env!("CARGO_MANIFEST_DIR"),
48    "/ndarray-tests-src/zero.rs"
49));