From cdfa73eba6349d7627e2b8afb599caa3a6e45031 Mon Sep 17 00:00:00 2001
From: sebcrozet <developer@crozet.re>
Date: Sat, 26 May 2018 21:02:24 +0200
Subject: [PATCH] Fix warnings.

---
 src/base/alias.rs                  | 4 +++-
 src/base/blas.rs                   | 1 +
 src/base/construction.rs           | 4 +++-
 src/base/default_allocator.rs      | 4 +++-
 src/base/matrix.rs                 | 2 +-
 src/linalg/permutation_sequence.rs | 4 +++-
 6 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/base/alias.rs b/src/base/alias.rs
index 6c49cf1e..c9ab098f 100644
--- a/src/base/alias.rs
+++ b/src/base/alias.rs
@@ -1,4 +1,6 @@
-use base::dimension::{Dynamic, U1, U2, U3, U4, U5, U6};
+#[cfg(any(feature = "alloc", feature = "std"))]
+use base::dimension::Dynamic;
+use base::dimension::{U1, U2, U3, U4, U5, U6};
 #[cfg(any(feature = "std", feature = "alloc"))]
 use base::matrix_vec::MatrixVec;
 use base::storage::Owned;
diff --git a/src/base/blas.rs b/src/base/blas.rs
index 588b2436..982bbdbf 100644
--- a/src/base/blas.rs
+++ b/src/base/blas.rs
@@ -2,6 +2,7 @@ use alga::general::{ClosedAdd, ClosedMul};
 #[cfg(feature = "std")]
 use matrixmultiply;
 use num::{One, Signed, Zero};
+#[cfg(feature = "std")]
 use std::mem;
 
 use base::allocator::Allocator;
diff --git a/src/base/construction.rs b/src/base/construction.rs
index d0e14cc7..f76d1d31 100644
--- a/src/base/construction.rs
+++ b/src/base/construction.rs
@@ -4,8 +4,10 @@ use base::storage::Owned;
 use quickcheck::{Arbitrary, Gen};
 
 use num::{Bounded, One, Zero};
+#[cfg(feature = "std")]
+use rand;
 use rand::distributions::{Distribution, Standard};
-use rand::{self, Rng};
+use rand::Rng;
 use std::iter;
 use typenum::{self, Cmp, Greater};
 
diff --git a/src/base/default_allocator.rs b/src/base/default_allocator.rs
index 04197149..e4692a14 100644
--- a/src/base/default_allocator.rs
+++ b/src/base/default_allocator.rs
@@ -15,7 +15,9 @@ use generic_array::ArrayLength;
 use typenum::Prod;
 
 use base::allocator::{Allocator, Reallocator};
-use base::dimension::{Dim, DimName, Dynamic};
+#[cfg(any(feature = "alloc", feature = "std"))]
+use base::dimension::Dynamic;
+use base::dimension::{Dim, DimName};
 use base::matrix_array::MatrixArray;
 #[cfg(any(feature = "std", feature = "alloc"))]
 use base::matrix_vec::MatrixVec;
diff --git a/src/base/matrix.rs b/src/base/matrix.rs
index 308e61a8..b8c28721 100644
--- a/src/base/matrix.rs
+++ b/src/base/matrix.rs
@@ -928,7 +928,7 @@ where
         }
 
         #[cfg(not(feature = "std"))]
-        fn val_width<N: Scalar + fmt::Display>(val: N, f: &mut fmt::Formatter) -> usize {
+        fn val_width<N: Scalar + fmt::Display>(_: N, _: &mut fmt::Formatter) -> usize {
             4
         }
 
diff --git a/src/linalg/permutation_sequence.rs b/src/linalg/permutation_sequence.rs
index bb9576a2..3d3fc5bd 100644
--- a/src/linalg/permutation_sequence.rs
+++ b/src/linalg/permutation_sequence.rs
@@ -6,7 +6,9 @@ use num::One;
 
 use allocator::Allocator;
 use base::{DefaultAllocator, Matrix, Scalar, VectorN};
-use dimension::{Dim, DimName, Dynamic, U1};
+#[cfg(any(feature = "std", feature = "alloc"))]
+use dimension::Dynamic;
+use dimension::{Dim, DimName, U1};
 use storage::StorageMut;
 
 /// A sequence of row or column permutations.