From 506d2de0ddc20bc43e2f8d58797ca1cf1ced8395 Mon Sep 17 00:00:00 2001
From: Max Kahnt <max.kahnt@fu-berlin.de>
Date: Sat, 18 Nov 2017 11:24:24 +0100
Subject: [PATCH] Derive field type with global helper.

---
 dune/fufem/assemblers/istlbackend.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dune/fufem/assemblers/istlbackend.hh b/dune/fufem/assemblers/istlbackend.hh
index a1da44d3..ccf00025 100644
--- a/dune/fufem/assemblers/istlbackend.hh
+++ b/dune/fufem/assemblers/istlbackend.hh
@@ -272,7 +272,7 @@ auto istlMatrixBackend(Matrix& matrix)
 template<class Matrix>
 auto istlMatrixBackend(Matrix& matrix)
 {
-  return ISTLMatrixBackend<Matrix, typename Matrix::field_type>(matrix);
+  return ISTLMatrixBackend<Matrix, field_t<Matrix>>(matrix);
 }
 
 
@@ -286,7 +286,7 @@ auto istlVectorBackend(Vector& vector)
 template<class Vector>
 auto istlVectorBackend(Vector& vector)
 {
-  return Dune::Functions::HierarchicVectorWrapper<Vector, typename Vector::field_type>(vector);
+  return Dune::Functions::HierarchicVectorWrapper<Vector, field_t<Vector>>(vector);
 }
 
 
-- 
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