From cc0f89eb3b07c65efb2b73890e4e7ac83525700a Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Tue, 17 Mar 2015 09:57:20 -0700
Subject: Changed the way lvalue operations are declared in TensorBase: this
 fixes constness isses that prevented some expressions mixing lvalues and
 rvalues from compiling.

---
 unsupported/test/cxx11_tensor_const.cpp | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'unsupported/test/cxx11_tensor_const.cpp')

diff --git a/unsupported/test/cxx11_tensor_const.cpp b/unsupported/test/cxx11_tensor_const.cpp
index 0ffb02afd..ad9c9da39 100644
--- a/unsupported/test/cxx11_tensor_const.cpp
+++ b/unsupported/test/cxx11_tensor_const.cpp
@@ -13,8 +13,6 @@
 using Eigen::Tensor;
 
 
-
-
 static void test_simple_assign()
 {
   Tensor<int, 3> random(2,3,7);
@@ -33,7 +31,32 @@ static void test_simple_assign()
   }
 }
 
+
+static void test_assign_of_const_tensor()
+{
+  Tensor<int, 3> random(2,3,7);
+  random.setRandom();
+
+  TensorMap<Tensor<const int, 3> > constant1(random.data(), 2, 3, 7);
+  TensorMap<const Tensor<int, 3> > constant2(random.data(), 2, 3, 7);
+  const TensorMap<Tensor<int, 3> > constant3(random.data(), 2, 3, 7);
+
+  Tensor<int, 2> result1 = constant1.chip(0, 2);
+  Tensor<int, 2> result2 = constant2.chip(0, 2);
+  Tensor<int, 2> result3 = constant3.chip(0, 2);
+
+  for (int i = 0; i < 2; ++i) {
+    for (int j = 0; j < 3; ++j) {
+      VERIFY_IS_EQUAL((result1(i,j)), random(i,j,0));
+      VERIFY_IS_EQUAL((result2(i,j)), random(i,j,0));
+      VERIFY_IS_EQUAL((result3(i,j)), random(i,j,0));
+    }
+  }
+}
+
+
 void test_cxx11_tensor_const()
 {
   CALL_SUBTEST(test_simple_assign());
+  CALL_SUBTEST(test_assign_of_const_tensor());
 }
-- 
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