From 31cb300c58e19e24bf2f9031e42999560708fd9f Mon Sep 17 00:00:00 2001
From: Matthias Maier <matthias.maier@iwr.uni-heidelberg.de>
Date: Mon, 20 Apr 2015 15:00:03 +0200
Subject: [PATCH] Work around a bug in gcc-4.7 wrt initalizer lists in function
 arguments.

---
 tests/lac/linear_operator_05.cc | 18 ++++++++++--------
 tests/lac/linear_operator_07.cc |  8 +++++---
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/tests/lac/linear_operator_05.cc b/tests/lac/linear_operator_05.cc
index 958df9fcf1..d0bb18ffd3 100644
--- a/tests/lac/linear_operator_05.cc
+++ b/tests/lac/linear_operator_05.cc
@@ -105,8 +105,9 @@ int main()
   auto op_b10 = linear_operator(a.block(1, 0));
   auto op_b11 = linear_operator(a.block(1, 1));
 
-  auto op_b =
-      block_operator<2, 2, BlockVector<double>>({op_b00, op_b01, op_b10, op_b11});
+  std::array<std::array<decltype(op_b00), 2>, 2> temp{op_b00, op_b01, op_b10,
+                                                      op_b11};
+  auto op_b = block_operator<2, 2, BlockVector<double>>(temp);
 
   // vmult:
 
@@ -173,8 +174,9 @@ int main()
 
   // And finally complicated block structures:
 
-  auto op_upp_x_upu = block_operator<3, 3, BlockVector<double>>(
-      {op_b00, op_b01, op_b00, op_b10, op_b11, op_b10, op_b10, op_b11, op_b10});
+  std::array<std::array<decltype(op_b00), 3>, 3> temp2{
+      op_b00, op_b01, op_b00, op_b10, op_b11, op_b10, op_b10, op_b11, op_b10};
+  auto op_upp_x_upu = block_operator<3, 3, BlockVector<double>>(temp2);
 
   op_upp_x_upu.reinit_domain_vector(u, false);
   for (unsigned int i = 0; i < u.size(); ++i) {
@@ -190,11 +192,11 @@ int main()
   op_upp_x_upu.vmult_add(v, u);
   PRINTME("v", v);
 
-  auto op_upp_x_p =
-      block_operator<3, 1, BlockVector<double>>({op_b01, op_b11, op_b11});
+  std::array<std::array<decltype(op_b01), 1>, 3> temp3{op_b01, op_b11, op_b11};
+  auto op_upp_x_p = block_operator<3, 1, BlockVector<double>>(temp3);
 
-  auto op_u_x_upu =
-      block_operator<1, 3, BlockVector<double>>({op_b00, op_b01, op_b00});
+  std::array<std::array<decltype(op_b01), 3>, 1> temp4{op_b00, op_b01, op_b00};
+  auto op_u_x_upu = block_operator<1, 3, BlockVector<double>>(temp4);
 
   auto op_long = op_u_x_upu * transpose_operator(op_upp_x_upu) * op_upp_x_p;
 
diff --git a/tests/lac/linear_operator_07.cc b/tests/lac/linear_operator_07.cc
index 53711def2d..4f630bbfbe 100644
--- a/tests/lac/linear_operator_07.cc
+++ b/tests/lac/linear_operator_07.cc
@@ -84,8 +84,9 @@ int main()
   auto op_b1 = linear_operator(a.block(1, 1));
   auto op_b2 = linear_operator(a.block(2, 2));
 
-  auto op_b =
-      block_diagonal_operator<3, BlockVector<double>>({op_b0, op_b1, op_b2});
+
+  std::array<decltype(op_b0), 3> temp{op_b0, op_b1, op_b2};
+  auto op_b = block_diagonal_operator<3, BlockVector<double>>(temp);
 
   // vmult:
 
@@ -152,7 +153,8 @@ int main()
 
   // And finally the other block_diagonal_operator variant:
 
-  auto op_c = block_diagonal_operator<5, BlockVector<double>>({op_b0, op_b0, op_b0, op_b0, op_b0});
+  std::array<decltype(op_b0), 5> temp2{op_b0, op_b0, op_b0, op_b0, op_b0};
+  auto op_c = block_diagonal_operator<5, BlockVector<double>>(temp2);
 
   auto op_d = block_diagonal_operator<5, BlockVector<double>>(op_b0);
 
-- 
2.39.5