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// Copyright 2014-2016 bluss and ndarray developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use super::{ArrayBase, ArrayView, Axis, Data, Dimension, NdProducer};
use crate::aliases::{Ix1, IxDyn};
use alloc::format;
use std::fmt;
/// Default threshold, below this element count, we don't ellipsize
const ARRAY_MANY_ELEMENT_LIMIT: usize = 500;
/// Limit of element count for non-last axes before overflowing with an ellipsis.
const AXIS_LIMIT_STACKED: usize = 6;
/// Limit for next to last axis (printed as column)
/// An odd number because one element uses the same space as the ellipsis.
const AXIS_LIMIT_COL: usize = 11;
/// Limit for last axis (printed as row)
/// An odd number because one element uses approximately the space of the ellipsis.
const AXIS_LIMIT_ROW: usize = 11;
#[cfg(test)]
// Test value to use for size of overflowing 2D arrays
const AXIS_2D_OVERFLOW_LIMIT: usize = 22;
/// The string used as an ellipsis.
const ELLIPSIS: &str = "...";
#[derive(Clone, Debug)]
struct FormatOptions
{
axis_collapse_limit: usize,
axis_collapse_limit_next_last: usize,
axis_collapse_limit_last: usize,
}
impl FormatOptions
{
pub(crate) fn default_for_array(nelem: usize, no_limit: bool) -> Self
{
let default = Self {
axis_collapse_limit: AXIS_LIMIT_STACKED,
axis_collapse_limit_next_last: AXIS_LIMIT_COL,
axis_collapse_limit_last: AXIS_LIMIT_ROW,
};
default.set_no_limit(no_limit || nelem < ARRAY_MANY_ELEMENT_LIMIT)
}
fn set_no_limit(mut self, no_limit: bool) -> Self
{
if no_limit {
self.axis_collapse_limit = usize::MAX;
self.axis_
8000
collapse_limit_next_last = usize::MAX;
self.axis_collapse_limit_last = usize::MAX;
}
self
}
/// Axis length collapse limit before ellipsizing, where `axis_rindex` is
/// the index of the axis from the back.
pub(crate) fn collapse_limit(&self, axis_rindex: usize) -> usize
{
match axis_rindex {
0 => self.axis_collapse_limit_last,
1 => self.axis_collapse_limit_next_last,
_ => self.axis_collapse_limit,
}
}
}
/// Formats the contents of a list of items, using an ellipsis to indicate when
/// the `length` of the list is greater than `limit`.
///
/// # Parameters
///
/// * `f`: The formatter.
/// * `length`: The length of the list.
/// * `limit`: The maximum number of items before overflow.
/// * `separator`: Separator to write between items.
/// * `ellipsis`: Ellipsis for indicating overflow.
/// * `fmt_elem`: A function that formats an element in the list, given the
/// formatter and the index of the item in the list.
fn format_with_overflow(
f: &mut fmt::Formatter<'_>, length: usize, limit: usize, separator: &str, ellipsis: &str,
fmt_elem: &mut dyn FnMut(&mut fmt::Formatter, usize) -> fmt::Result,
) -> fmt::Result
{
if length == 0 {
// no-op
} else if length <= limit {
fmt_elem(f, 0)?;
for i in 1..length {
f.write_str(separator)?;
fmt_elem(f, i)?
}
} else {
let edge = limit / 2;
fmt_elem(f, 0)?;
for i in 1..edge {
f.write_str(separator)?;
fmt_elem(f, i)?;
}
f.write_str(separator)?;
f.write_str(ellipsis)?;
for i in length - edge..length {
f.write_str(separator)?;
fmt_elem(f, i)?
}
}
Ok(())
}
fn format_array<A, S, D, F>(
array: &ArrayBase<S, D>, f: &mut fmt::Formatter<'_>, format: F, fmt_opt: &FormatOptions,
) -> fmt::Result
where
F: FnMut(&A, &mut fmt::Formatter<'_>) -> fmt::Result + Clone,
D: Dimension,
S: Data<Elem = A>,
{
// Cast into a dynamically dimensioned view
// This is required to be able to use `index_axis` for the recursive case
format_array_inner(array.view().into_dyn(), f, format, fmt_opt, 0, array.ndim())
}
fn format_array_inner<A, F>(
view: ArrayView<A, IxDyn>, f: &mut fmt::Formatter<'_>, mut format: F, fmt_opt: &FormatOptions, depth: usize,
full_ndim: usize,
) -> fmt::Result
where
F: FnMut(&A, &mut fmt::Formatter<'_>) -> fmt::Result + Clone,
{
// If any of the axes has 0 length, we return the same empty array representation
// e.g. [[]] for 2-d arrays
if view.is_empty() {
write!(f, "{}{}", "[".repeat(view.ndim()), "]".repeat(view.ndim()))?;
return Ok(());
}
match view.shape() {
// If it's 0 dimensional, we just print out the scalar
&[] => format(&view[[]], f)?,
// We handle 1-D arrays as a special case
&[len] => {
let view = view.view().into_dimensionality::<Ix1>().unwrap();
f.write_str("[")?;
format_with_overflow(f, len, fmt_opt.collapse_limit(0), ", ", ELLIPSIS, &mut |f, index| {
format(&view[index], f)
})?;
f.write_str("]")?;
}
// For n-dimensional arrays, we proceed recursively
shape => {
let blank_lines = "\n".repeat(shape.len() - 2);
let indent = " ".repeat(depth + 1);
let separator = format!(",\n{}{}", blank_lines, indent);
f.write_str("[")?;
let limit = fmt_opt.collapse_limit(full_ndim - depth - 1);
format_with_overflow(f, shape[0], limit, &separator, ELLIPSIS, &mut |f, index| {
format_array_inner(view.index_axis(Axis(0), index), f, format.clone(), fmt_opt, depth + 1, full_ndim)
})?;
f.write_str("]")?;
}
}
Ok(())
}
// NOTE: We can impl other fmt traits here
/// Format the array using `Display` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::Display, S, D: Dimension> fmt::Display for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)
}
}
/// Format the array using `Debug` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::Debug, S, D: Dimension> fmt::Debug for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)?;
// Add extra information for Debug
write!(
f,
", shape={:?}, strides={:?}, layout={:?}",
self.shape(),
self.strides(),
self.view().layout(),
)?;
match D::NDIM {
Some(ndim) => write!(f, ", const ndim={}", ndim)?,
None => write!(f, ", dynamic ndim={}", self.ndim())?,
}
Ok(())
}
}
/// Format the array using `LowerExp` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::LowerExp, S, D: Dimension> fmt::LowerExp for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)
}
}
/// Format the array using `UpperExp` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::UpperExp, S, D: Dimension> fmt::UpperExp for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)
}
}
/// Format the array using `LowerHex` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::LowerHex, S, D: Dimension> fmt::LowerHex for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)
}
}
/// Format the array using `Binary` and apply the formatting parameters used
/// to each element.
///
/// The array is shown in multiline style.
impl<A: fmt::Binary, S, D: Dimension> fmt::Binary for ArrayBase<S, D>
where S: Data<Elem = A>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
{
let fmt_opt = FormatOptions::default_for_array(self.len(), f.alternate());
format_array(self, f, <_>::fmt, &fmt_opt)
}
}
#[cfg(test)]
mod formatting_with_omit
{
#[cfg(not(feature = "std"))]
use alloc::string::String;
#[cfg(not(feature = "std"))]
use alloc::vec::Vec;
use itertools::Itertools;
use super::*;
use crate::prelude::*;
fn assert_str_eq(expected: &str, actual: &str)
{
// use assert to avoid printing the strings twice on failure
assert!(
expected == actual,
"formatting assertion failed\nexpected:\n{}\nactual:\n{}\n",
expected,
actual,
);
}
fn ellipsize(limit: usize, sep: &str, elements: impl IntoIterator<Item = impl fmt::Display>) -> String
{
let elements = elements.into_iter().collect::<Vec<_>>();
let edge = limit / 2;
if elements.len() <= limit {
format!("{}", elements.iter().format(sep))
} else {
format!(
"{}{}{}{}{}",
elements[..edge].iter().format(sep),
sep,
ELLIPSIS,
sep,
elements[elements.len() - edge..].iter().format(sep)
)
}
}
#[test]
fn empty_arrays()
{
let a: Array2<u32> = arr2(&[[], []]);
let actual = format!("{}", a);
let expected = "[[]]";
assert_str_eq(expected, &actual);
}
#[test]
fn zero_length_axes()
{
let a = Array3::<f32>::zeros((3, 0, 4));
let actual = format!("{}", a);
let expected = "[[[]]]";
assert_str_eq(expected, &actual);
}
#[test]
fn dim_0()
{
let element = 12;
let a = arr0(element);
let actual = format!("{}", a);
let expected = "12";
assert_str_eq(expected, &actual);
}
#[test]
fn dim_1()
{
let overflow: usize = 2;
let a = Array1::from_elem(ARRAY_MANY_ELEMENT_LIMIT + overflow, 1);
let actual = format!("{}", a);
let expected = format!("[{}]", ellipsize(AXIS_LIMIT_ROW, ", ", a.iter()));
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_1_alternate()
{
let overflow: usize = 2;
let a = Array1::from_elem(ARRAY_MANY_ELEMENT_LIMIT + overflow, 1);
let actual = format!("{:#}", a);
let expected = format!("[{}]", a.iter().format(", "));
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_2_last_axis_overflow()
{
let overflow: usize = 2;
let a = Array2::from_elem((AXIS_2D_OVERFLOW_LIMIT, AXIS_2D_OVERFLOW_LIMIT + overflow), 1);
let actual = format!("{}", a);
let expected = "\
[[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
...,
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1],
[1, 1, 1, 1, 1, ..., 1, 1, 1, 1, 1]]";
assert_str_eq(expected, &actual);
}
#[test]
fn dim_2_non_last_axis_overflow()
{
let a = Array2::from_elem((ARRAY_MANY_ELEMENT_LIMIT / 10, 10), 1);
let actual = format!("{}", a);
let row = format!("{}", a.row(0));
let expected = format!(
"[{}]",
ellipsize(AXIS_LIMIT_COL, ",\n ", (0..a.nrows()).map(|_| &row))
);
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_2_non_last_axis_overflow_alternate()
{
let a = Array2::from_elem((AXIS_LIMIT_COL * 4, 6), 1);
let actual = format!("{:#}", a);
let row = format!("{}", a.row(0));
let expected = format!("[{}]", (0..a.nrows()).map(|_| &row).format(",\n "));
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_2_multi_directional_overflow()
{
let overflow: usize = 2;
let a = Array2::from_elem((AXIS_2D_OVERFLOW_LIMIT + overflow, AXIS_2D_OVERFLOW_LIMIT + overflow), 1);
let actual = format!("{}", a);
let row = format!("[{}]", ellipsize(AXIS_LIMIT_ROW, ", ", a.row(0)));
let expected = format!(
"[{}]",
ellipsize(AXIS_LIMIT_COL, ",\n ", (0..a.nrows()).map(|_| &row))
);
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_2_multi_directional_overflow_alternate()
{
let overflow: usize = 2;
let a = Array2::from_elem((AXIS_2D_OVERFLOW_LIMIT + overflow, AXIS_2D_OVERFLOW_LIMIT + overflow), 1);
let actual = format!("{:#}", a);
let row = format!("{}", a.row(0));
let expected = format!("[{}]", (0..a.nrows()).map(|_| &row).format(",\n "));
assert_str_eq(&expected, &actual);
}
#[test]
fn dim_3_overflow_most()
{
let a = Array3::from_shape_fn((AXIS_LIMIT_STACKED + 1, AXIS_LIMIT_COL, AXIS_LIMIT_ROW + 1), |(i, j, k)| {
1000. + (100. * ((i as f64).sqrt() + (j as f64).sin() + k as f64)).round() / 100.
});
let actual = format!("{:6.1}", a);
let expected = "\
[[[1000.0, 1001.0, 1002.0, 1003.0, 1004.0, ..., 1007.0, 1008.0, 1009.0, 1010.0, 1011.0],
[1000.8, 1001.8, 1002.8, 1003.8, 1004.8, ..., 1007.8, 1008.8, 1009.8, 1010.8, 1011.8],
[1000.9, 1001.9, 1002.9, 1003.9, 1004.9, ..., 1007.9, 1008.9, 1009.9, 1010.9, 1011.9],
[1000.1, 1001.1, 1002.1, 1003.1, 1004.1, ..., 1007.1, 1008.1, 1009.1, 1010.1, 1011.1],
[ 999.2, 1000.2, 1001.2, 1002.2, 1003.2, ..., 1006.2, 1007.2, 1008.2, 1009.2, 1010.2],
[ 999.0, 1000.0, 1001.0, 1002.0, 1003.0, ..., 1006.0, 1007.0, 1008.0, 1009.0, 1010.0],
[ 999.7, 1000.7, 1001.7, 1002.7, 1003.7, ..., 1006.7, 1007.7, 1008.7, 1009.7, 1010.7],
[1000.7, 1001.7, 1002.7, 1003.7, 1004.7, ..., 1007.7, 1008.7, 1009.7, 1010.7, 1011.7],
[1001.0, 1002.0, 1003.0, 1004.0, 1005.0, ..., 1008.0, 1009.0, 1010.0, 1011.0, 1012.0],
[1000.4, 1001.4, 1002.4, 1003.4, 1004.4, ..., 1007.4, 1008.4, 1009.4, 1010.4, 1011.4],
[ 999.5, 1000.5, 1001.5, 1002.5, 1003.5, ..., 1006.5, 1007.5, 1008.5, 1009.5, 1010.5]],
[[1001.0, 1002.0, 1003.0, 1004.0, 1005.0, ..., 1008.0, 1009.0, 1010.0, 1011.0, 1012.0],
[1001.8, 1002.8, 1003.8, 1004.8, 1005.8, ..., 1008.8, 1009.8, 1010.8, 1011.8, 1012.8],
[1001.9, 1002.9, 1003.9, 1004.9, 1005.9, ..., 1008.9, 1009.9, 1010.9, 1011.9, 1012.9],
[1001.1, 1002.1, 1003.1, 1004.1, 1005.1, ..., 1008.1, 1009.1, 1010.1, 1011.1, 1012.1],
[1000.2, 1001.2, 1002.2, 1003.2, 1004.2, ..., 1007.2, 1008.2, 1009.2, 1010.2, 1011.2],
[1000.0, 1001.0, 1002.0, 1003.0, 1004.0, ..., 1007.0, 1008.0, 1009.0, 1010.0, 1011.0],
[1000.7, 1001.7, 1002.7, 1003.7, 1004.7, ..., 1007.7, 1008.7, 1009.7, 1010.7, 1011.7],
[1001.7, 1002.7, 1003.7, 1004.7, 1005.7, ..., 1008.7, 1009.7, 1010.7, 1011.7, 1012.7],
[1002.0, 1003.0, 1004.0, 1005.0, 1006.0, ..., 1009.0, 1010.0, 1011.0, 1012.0, 1013.0],
[1001.4, 1002.4, 1003.4, 1004.4, 1005.4, ..., 1008.4, 1009.4, 1010.4, 1011.4, 1012.4],
[1000.5, 1001.5, 1002.5, 1003.5, 1004.5, ..., 1007.5, 1008.5, 1009.5, 1010.5, 1011.5]],
[[1001.4, 1002.4, 1003.4, 1004.4, 1005.4, ..., 1008.4, 1009.4, 1010.4, 1011.4, 1012.4],
[1002.3, 1003.3, 1004.3, 1005.3, 1006.3, ..., 1009.3, 1010.3, 1011.3, 1012.3, 1013.3],
[1002.3, 1003.3, 1004.3, 1005.3, 1006.3, ..., 1009.3, 1010.3, 1011.3, 1012.3, 1013.3],
[1001.6, 1002.6, 1003.6, 1004.6, 1005.6, ..., 1008.6, 1009.6, 1010.6, 1011.6, 1012.6],
[1000.7, 1001.7, 1002.7, 1003.7, 1004.7, ..., 1007.7, 1008.7, 1009.7, 1010.7, 1011.7],
[1000.5, 1001.5, 1002.5, 1003.5, 1004.5, ..., 1007.5, 1008.5, 1009.5, 1010.5, 1011.5],
[1001.1, 1002.1, 1003.1, 1004.1, 1005.1, ..., 1008.1, 1009.1, 1010.1, 1011.1, 1012.1],
[1002.1, 1003.1, 1004.1, 1005.1, 1006.1, ..., 1009.1, 1010.1, 1011.1, 1012.1, 1013.1],
[1002.4, 1003.4, 1004.4, 1005.4, 1006.4, ..., 1009.4, 1010.4, 1011.4, 1012.4, 1013.4],
[1001.8, 1002.8, 1003.8, 1004.8, 1005.8, ..., 1008.8, 1009.8, 1010.8, 1011.8, 1012.8],
[1000.9, 1001.9, 1002.9, 1003.9, 1004.9, ..., 1007.9, 1008.9, 1009.9, 1010.9, 1011.9]],
...,
[[1002.0, 1003.0, 1004.0, 1005.0, 1006.0, ..., 1009.0, 1010.0, 1011.0, 1012.0, 1013.0],
[1002.8, 1003.8, 1004.8, 1005.8, 1006.8, ..., 1009.8, 1010.8, 1011.8, 1012.8, 1013.8],
[1002.9, 1003.9, 1004.9, 1005.9, 1006.9, ..., 1009.9, 1010.9, 1011.9, 1012.9, 1013.9],
[1002.1, 1003.1, 1004.1, 1005.1, 1006.1, ..., 1009.1, 1010.1, 1011.1, 1012.1, 1013.1],
[1001.2, 1002.2, 1003.2, 1004.2, 1005.2, ..., 1008.2, 1009.2, 1010.2, 1011.2, 1012.2],
[1001.0, 1002.0, 1003.0, 1004.0, 1005.0, ..., 1008.0, 1009.0, 1010.0, 1011.0, 1012.0],
[1001.7, 1002.7, 1003.7, 1004.7, 1005.7, ..., 1008.7, 1009.7, 1010.7, 1011.7, 1012.7],
[1002.7, 1003.7, 1004.7, 1005.7, 1006.7, ..., 1009.7, 1010.7, 1011.7, 1012.7, 1013.7],
[1003.0, 1004.0, 1005.0, 1006.0, 1007.0, ..., 1010.0, 1011.0, 1012.0, 1013.0, 1014.0],
[1002.4, 1003.4, 1004.4, 1005.4, 1006.4, ..., 1009.4, 1010.4, 1011.4, 1012.4, 1013.4],
[1001.5, 1002.5, 1003.5, 1004.5, 1005.5, ..., 1008.5, 1009.5, 1010.5, 1011.5, 1012.5]],
[[1002.2, 1003.2, 1004.2, 1005.2, 1006.2, ..., 1009.2, 1010.2, 1011.2, 1012.2, 1013.2],
[1003.1, 1004.1, 1005.1, 1006.1, 1007.1, ..., 1010.1, 1011.1, 1012.1, 1013.1, 1014.1],
[1003.1, 1004.1, 1005.1, 1006.1, 1007.1, ..., 1010.1, 1011.1, 1012.1, 1013.1, 1014.1],
[1002.4, 1003.4, 1004.4, 1005.4, 1006.4, ..., 1009.4, 1010.4, 1011.4, 1012.4, 1013.4],
[1001.5, 1002.5, 1003.5, 1004.5, 1005.5, ..., 1008.5, 1009.5, 1010.5, 1011.5, 1012.5],
[1001.3, 1002.3, 1003.3, 1004.3, 1005.3, ..., 1008.3, 1009.3, 1010.3, 1011.3, 1012.3],
[1002.0, 1003.0, 1004.0, 1005.0, 1006.0, ..., 1009.0, 1010.0, 1011.0, 1012.0, 1013.0],
[1002.9, 1003.9, 1004.9, 1005.9, 1006.9, ..., 1009.9, 1010.9, 1011.9, 1012.9, 1013.9],
[1003.2, 1004.2, 1005.2, 1006.2, 1007.2, ..., 1010.2, 1011.2, 1012.2, 1013.2, 1014.2],
[1002.6, 1003.6, 1004.6, 1005.6, 1006.6, ..., 1009.6, 1010.6, 1011.6, 1012.6, 1013.6],
[1001.7, 1002.7, 1003.7, 1004.7, 1005.7, ..., 1008.7, 1009.7, 1010.7, 1011.7, 1012.7]],
[[1002.5, 1003.5, 1004.5, 1005.5, 1006.5, ..., 1009.5, 1010.5, 1011.5, 1012.5, 1013.5],
[1003.3, 1004.3, 1005.3, 1006.3, 1007.3, ..., 1010.3, 1011.3, 1012.3, 1013.3, 1014.3],
[1003.4, 1004.4, 1005.4, 1006.4, 1007.4, ..., 1010.4, 1011.4, 1012.4, 1013.4, 1014.4],
[1002.6, 1003.6, 1004.6, 1005.6, 1006.6, ..., 1009.6, 1010.6, 1011.6, 1012.6, 1013.6],
[1001.7, 1002.7, 1003.7, 1004.7, 1005.7, ..., 1008.7, 1009.7, 1010.7, 1011.7, 1012.7],
[1001.5, 1002.5, 1003.5, 1004.5, 1005.5, ..., 1008.5, 1009.5, 1010.5, 1011.5, 1012.5],
[1002.2, 1003.2, 1004.2, 1005.2, 1006.2, ..., 1009.2, 1010.2, 1011.2, 1012.2, 1013.2],
[1003.1, 1004.1, 1005.1, 1006.1, 1007.1, ..., 1010.1, 1011.1, 1012.1, 1013.1, 1014.1],
[1003.4, 1004.4, 1005.4, 1006.4, 1007.4, ..., 1010.4, 1011.4, 1012.4, 1013.4, 1014.4],
[1002.9, 1003.9, 1004.9, 1005.9, 1006.9, ..., 1009.9, 1010.9, 1011.9, 1012.9, 1013.9],
[1001.9, 1002.9, 1003.9, 1004.9, 1005.9, ..., 1008.9, 1009.9, 1010.9, 1011.9, 1012.9]]]";
assert_str_eq(expected, &actual);
}
#[test]
fn dim_4_overflow_outer()
{
let a = Array4::from_shape_fn((10, 10, 3, 3), |(i, j, k, l)| i + j + k + l);
let actual = format!("{:2}", a);
// Generated using NumPy with:
// np.set_printoptions(threshold=500, edgeitems=3)
// np.fromfunction(lambda i, j, k, l: i + j + k + l, (10, 10, 3, 3), dtype=int)
//
let expected = "\
[[[[ 0, 1, 2],
[ 1, 2, 3],
[ 2, 3, 4]],
[[ 1, 2, 3],
[ 2, 3, 4],
[ 3, 4, 5]],
[[ 2, 3, 4],
[ 3, 4, 5],
[ 4, 5, 6]],
...,
[[ 7, 8, 9],
[ 8, 9, 10],
[ 9, 10, 11]],
[[ 8, 9, 10],
[ 9, 10, 11],
[10, 11, 12]],
[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]]],
[[[ 1, 2, 3],
[ 2, 3, 4],
[ 3, 4, 5]],
[[ 2, 3, 4],
[ 3, 4, 5],
[ 4, 5, 6]],
[[ 3, 4, 5],
[ 4, 5, 6],
[ 5, 6, 7]],
...,
[[ 8, 9, 10],
[ 9, 10, 11],
[10, 11, 12]],
[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]],
[[10, 11, 12],
[11, 12, 13],
[12, 13, 14]]],
[[[ 2, 3, 4],
[ 3, 4, 5],
[ 4, 5, 6]],
[[ 3, 4, 5],
[ 4, 5, 6],
[ 5, 6, 7]],
[[ 4, 5, 6],
[ 5, 6, 7],
[ 6, 7, 8]],
...,
[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]],
[[10, 11, 12],
[11, 12, 13],
[12, 13, 14]],
[[11, 12, 13],
[12, 13, 14],
[13, 14, 15]]],
...,
[[[ 7, 8, 9],
[ 8, 9, 10],
[ 9, 10, 11]],
[[ 8, 9, 10],
[ 9, 10, 11],
[10, 11, 12]],
[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]],
...,
[[14, 15, 16],
[15, 16, 17],
[16, 17, 18]],
[[15, 16, 17],
[16, 17, 18],
[17, 18, 19]],
[[16, 17, 18],
[17, 18, 19],
[18, 19, 20]]],
[[[ 8, 9, 10],
[ 9, 10, 11],
[10, 11, 12]],
[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]],
[[10, 11, 12],
[11, 12, 13],
[12, 13, 14]],
...,
[[15, 16, 17],
[16, 17, 18],
[17, 18, 19]],
[[16, 17, 18],
[17, 18, 19],
[18, 19, 20]],
[[17, 18, 19],
[18, 19, 20],
[19, 20, 21]]],
[[[ 9, 10, 11],
[10, 11, 12],
[11, 12, 13]],
[[10, 11, 12],
[11, 12, 13],
[12, 13, 14]],
[[11, 12, 13],
[12, 13, 14],
[13, 14, 15]],
...,
[[16, 17, 18],
[17, 18, 19],
[18, 19, 20]],
[[17, 18, 19],
[18, 19, 20],
[19, 20, 21]],
[[18, 19, 20],
[19, 20, 21],
[20, 21, 22]]]]";
assert_str_eq(expected, &actual);
}
}