From 3abeae04f538bfb6d0a19912e06686dfe0b08bec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Crozet?= <sebastien@crozet.re>
Date: Mon, 1 Oct 2018 05:30:28 +0200
Subject: [PATCH] Add conditional compilation to From impls for
 dynamically-sized matrices.

---
 src/base/conversion.rs | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/src/base/conversion.rs b/src/base/conversion.rs
index 2d857a69..8c0c2e00 100644
--- a/src/base/conversion.rs
+++ b/src/base/conversion.rs
@@ -343,12 +343,12 @@ where
     R::Value: Mul<C::Value>,
     Prod<R::Value, C::Value>: ArrayLength<N>,
 {
-    fn from(matrix_slice: MatrixSlice<'a, N, R, C, RStride, CStride>) -> Self
-    {
+    fn from(matrix_slice: MatrixSlice<'a, N, R, C, RStride, CStride>) -> Self {
         matrix_slice.into_owned()
     }
 }
 
+#[cfg(any(feature = "std", feature = "alloc"))]
 impl<'a, N, C, RStride, CStride> From<MatrixSlice<'a, N, Dynamic, C, RStride, CStride>>
     for Matrix<N, Dynamic, C, MatrixVec<N, Dynamic, C>>
 where
@@ -357,12 +357,12 @@ where
     RStride: Dim,
     CStride: Dim,
 {
-    fn from(matrix_slice: MatrixSlice<'a, N, Dynamic, C, RStride, CStride>) -> Self
-    {
+    fn from(matrix_slice: MatrixSlice<'a, N, Dynamic, C, RStride, CStride>) -> Self {
         matrix_slice.into_owned()
     }
 }
 
+#[cfg(any(feature = "std", feature = "alloc"))]
 impl<'a, N, R, RStride, CStride> From<MatrixSlice<'a, N, R, Dynamic, RStride, CStride>>
     for Matrix<N, R, Dynamic, MatrixVec<N, R, Dynamic>>
 where
@@ -371,8 +371,7 @@ where
     RStride: Dim,
     CStride: Dim,
 {
-    fn from(matrix_slice: MatrixSlice<'a, N, R, Dynamic, RStride, CStride>) -> Self
-    {
+    fn from(matrix_slice: MatrixSlice<'a, N, R, Dynamic, RStride, CStride>) -> Self {
         matrix_slice.into_owned()
     }
 }
@@ -388,12 +387,12 @@ where
     R::Value: Mul<C::Value>,
     Prod<R::Value, C::Value>: ArrayLength<N>,
 {
-    fn from(matrix_slice: MatrixSliceMut<'a, N, R, C, RStride, CStride>) -> Self
-    {
+    fn from(matrix_slice: MatrixSliceMut<'a, N, R, C, RStride, CStride>) -> Self {
         matrix_slice.into_owned()
     }
 }
 
+#[cfg(any(feature = "std", feature = "alloc"))]
 impl<'a, N, C, RStride, CStride> From<MatrixSliceMut<'a, N, Dynamic, C, RStride, CStride>>
     for Matrix<N, Dynamic, C, MatrixVec<N, Dynamic, C>>
 where
@@ -408,6 +407,7 @@ where
     }
 }
 
+#[cfg(any(feature = "std", feature = "alloc"))]
 impl<'a, N, R, RStride, CStride> From<MatrixSliceMut<'a, N, R, Dynamic, RStride, CStride>>
     for Matrix<N, R, Dynamic, MatrixVec<N, R, Dynamic>>
 where
@@ -416,8 +416,7 @@ where
     RStride: Dim,
     CStride: Dim,
 {
-    fn from(matrix_slice: MatrixSliceMut<'a, N, R, Dynamic, RStride, CStride>) -> Self
-    {
+    fn from(matrix_slice: MatrixSliceMut<'a, N, R, Dynamic, RStride, CStride>) -> Self {
         matrix_slice.into_owned()
     }
 }