FIX: Fix unused imports for std/no_std

Author: bluss

src/arrayformat.rs

@@ -9,8 +9,6 @@ use super::{ArrayBase, ArrayView, Axis, Data, Dimension, NdProducer};
 use crate::aliases::{Ix1, IxDyn};
 use std::fmt;
 use alloc::format;
-use alloc::string::String;
-use alloc::vec::Vec;
 
 /// Default threshold, below this element count, we don't ellipsize
 const ARRAY_MANY_ELEMENT_LIMIT: usize = 500;
@@ -290,6 +288,8 @@ where
 mod formatting_with_omit {
     use itertools::Itertools;
     use std::fmt;
+    use alloc::string::String;
+    use alloc::vec::Vec;
 
     use super::*;
     use crate::prelude::*;

src/impl_constructors.rs

@@ -24,7 +24,9 @@ use crate::extension::nonnull::nonnull_from_vec_data;
 use crate::imp_prelude::*;
 use crate::indexes;
 use crate::indices;
-use crate::iterators::{to_vec, to_vec_mapped};
+#[cfg(feature = "std")]
+use crate::iterators::to_vec;
+use crate::iterators::to_vec_mapped;
 use crate::StrideShape;
 #[cfg(feature = "std")]
 use crate::{geomspace, linspace, logspace};

src/linalg_traits.rs

@@ -5,14 +5,20 @@
 // <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 crate::ScalarOperand;
+
 #[cfg(feature = "std")]
 use num_traits::Float;
 use num_traits::{One, Zero};
+
+#[cfg(feature = "std")]
 use std::fmt;
 use std::ops::{Add, Div, Mul, Sub};
+#[cfg(feature = "std")]
 use std::ops::{AddAssign, DivAssign, MulAssign, RemAssign, SubAssign};
 
+#[cfg(feature = "std")]
+use crate::ScalarOperand;
+
 /// Elements that support linear algebra operations.
 ///
 /// `'static` for type-based specialization, `Copy` so that they don't need move

src/stacking.rs

@@ -5,7 +5,7 @@
 // <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 alloc::vec::Vec;
+
 use crate::error::{from_kind, ErrorKind, ShapeError};
 use crate::imp_prelude::*;
 use crate::traversal_utils::assign_to;