From 68b7d21828b90f57512ed575a6267f08bb7af3b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Crozet?= <developer@crozet.re>
Date: Tue, 11 Apr 2017 00:13:28 +0200
Subject: [PATCH] Implement IntoIterator for &Matrix and &mut Matrix

IntoIterator for Matrix will beharder to implement.
Partially addresses #241.
---
 src/core/conversion.rs | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/core/conversion.rs b/src/core/conversion.rs
index 2ed03ece..fb0a48be 100644
--- a/src/core/conversion.rs
+++ b/src/core/conversion.rs
@@ -7,7 +7,8 @@ use alga::general::{SubsetOf, SupersetOf};
 use core::{Scalar, Matrix};
 use core::dimension::{Dim, DimName, DimNameMul, DimNameProd, U1, U2, U3, U4, U5, U6};
 use core::constraint::{ShapeConstraint, SameNumberOfRows, SameNumberOfColumns};
-use core::storage::OwnedStorage;
+use core::storage::{Storage, StorageMut, OwnedStorage};
+use core::iter::{MatrixIter, MatrixIterMut};
 use core::allocator::{OwnedAllocator, SameShapeAllocator};
 
 
@@ -62,6 +63,26 @@ impl<N1, N2, R1, C1, R2, C2, SA, SB> SubsetOf<Matrix<N2, R2, C2, SB>> for Matrix
     }
 }
 
+impl<'a, N: Scalar, R: Dim, C: Dim, S: Storage<N, R, C>> IntoIterator for &'a Matrix<N, R, C, S> {
+    type Item     = &'a N;
+    type IntoIter = MatrixIter<'a, N, R, C, S>;
+
+    #[inline]
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
+impl<'a, N: Scalar, R: Dim, C: Dim, S: StorageMut<N, R, C>> IntoIterator for &'a mut Matrix<N, R, C, S> {
+    type Item     = &'a mut N;
+    type IntoIter = MatrixIterMut<'a, N, R, C, S>;
+
+    #[inline]
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter_mut()
+    }
+}
+
 
 macro_rules! impl_from_into_asref_1D(
     ($($Dim: ident => $SZ: expr);* $(;)*) => {$(