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|
#![allow(
clippy::many_single_char_names, clippy::deref_addrof, clippy::unreadable_literal, clippy::many_single_char_names,
clippy::float_cmp
)]
use ndarray::Array;
use ndarray::IntoDimension;
use ndarray::Ix3;
use ndarray::Order;
use ndarray::ShapeBuilder;
#[test]
fn test_ixdyn()
{
// check that we can use fixed size arrays for indexing
let mut a = Array::zeros(vec![2, 3, 4]);
a[[1, 1, 1]] = 1.;
assert_eq!(a[[1, 1, 1]], 1.);
}
#[should_panic]
#[test]
fn test_ixdyn_wrong_dim()
{
// check that we can use but it panics at runtime, if number of axes is wrong
let mut a = Array::zeros(vec![2, 3, 4]);
a[[1, 1, 1]] = 1.;
let _ = a[[0, 0]];
}
#[test]
fn test_ixdyn_out_of_bounds()
{
// check that we are out of bounds
let a = Array::<f32, _>::zeros(vec![2, 3, 4]);
let res = a.get([0, 3, 0]);
assert_eq!(res, None);
}
#[test]
fn test_ixdyn_iterate()
{
for &order in &[Order::C, Order::F] {
let mut a = Array::zeros((2, 3, 4).set_f(order.is_column_major()));
let dim = a.shape().to_vec();
for (i, elt) in a.iter_mut().enumerate() {
*elt = i;
}
println!("{:?}", a.dim());
let mut a = a.into_shape_with_order((dim, order)).unwrap();
println!("{:?}", a.dim());
let mut c = 0;
for (i, elt) in a.iter_mut().enumerate() {
assert_eq!(i, *elt);
c += 1;
}
assert_eq!(c, a.len());
}
}
#[test]
fn test_ixdyn_index_iterate()
{
for &order in &[Order::C, Order::F] {
let mut a = Array::zeros((2, 3, 4).set_f(order.is_column_major()));
let dim = a.shape().to_vec();
for ((i, j, k), elt) in a.indexed_iter_mut() {
*elt = i + 10 * j + 100 * k;
}
let a = a.into_shape_with_order((dim, order)).unwrap();
println!("{:?}", a.dim());
let mut c = 0;
for (i, elt) in a.indexed_iter() {
assert_eq!(a[i], *elt);
c += 1;
}
assert_eq!(c, a.len());
}
}
#[test]
fn test_ixdyn_uget()
{
// check that we are out of bounds
let mut a = Array::<f32, _>::zeros(vec![2, 3, 4]);
a[[1, 2, 0]] = 1.;
a[[1, 2, 1]] = 2.;
a[[1, 2, 3]] = 7.;
let mut x = Ix3(1, 2, 0);
let step = Ix3(0, 0, 1);
let mut sum = 0.;
while let Some(&v) = a.get(x) {
sum += v;
x += step;
}
assert_eq!(sum, 10.);
let mut x = Ix3(1, 2, 0);
let mut sum = 0.;
unsafe {
for _ in 0..4 {
sum += *a.uget(x);
x += step;
}
}
assert_eq!(sum, 10.);
}
#[test]
fn test_0()
{
let mut a = Array::zeros(vec![]);
let z = vec![].into_dimension();
assert_eq!(a[z.clone()], 0.);
a[[]] = 1.;
assert_eq!(a[[]], 1.);
assert_eq!(a.len(), 1);
assert!(!a.is_empty());
assert_eq!(a.as_slice().unwrap(), &[1.]);
let mut a = Array::zeros(vec![].f());
assert_eq!(a[[]], 0.);
a[[]] = 1.;
assert_eq!(a[[]], 1.);
assert_eq!(a.len(), 1);
assert!(!a.is_empty());
assert_eq!(a.as_slice().unwrap(), &[1.]);
}
#[test]
fn test_0_add()
{
let mut a = Array::zeros(vec![]);
a += 1.;
assert_eq!(a[[]], 1.);
a += 2.;
assert_eq!(a[[]], 3.);
}
#[test]
fn test_0_add_add()
{
let mut a = Array::zeros(vec![]);
a += 1.;
let mut b = Array::zeros(vec![]);
b += 1.;
a += &b;
assert_eq!(a[[]], 2.);
}
#[test]
fn test_0_add_broad()
{
let mut b = Array::from(vec![5., 6.]);
let mut a = Array::zeros(vec![]);
a += 1.;
b += &a;
assert_eq!(b[0], 6.);
assert_eq!(b[1], 7.);
}
#[test]
#[cfg(feature = "std")]
fn test_into_dimension()
{
use ndarray::{Ix0, Ix1, Ix2, IxDyn};
let a = Array::linspace(0., 41., 6 * 7)
.into_shape_with_order((6, 7))
.unwrap();
let a2 = a.clone().into_shape_with_order(IxDyn(&[6, 7])).unwrap();
let b = a2.clone().into_dimensionality::<Ix2>().unwrap();
assert_eq!(a, b);
assert!(a2.clone().into_dimensionality::<Ix0>().is_err());
assert!(a2.clone().into_dimensionality::<Ix1>().is_err());
assert!(a2.clone().into_dimensionality::<Ix3>().is_err());
let c = a2.clone().into_dimensionality::<IxDyn>().unwrap();
assert_eq!(a2, c);
}
|
