From c98f4b353ca3d80bcff390d2ad7d56be483aa623 Mon Sep 17 00:00:00 2001
From: Oliver Sander <oliver.sander@tu-dresden.de>
Date: Fri, 13 Apr 2018 14:49:28 +0200
Subject: [PATCH] Avoid one signed/unsigned warning

---
 dune/gfe/vertexnormals.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dune/gfe/vertexnormals.hh b/dune/gfe/vertexnormals.hh
index 49896216..ac067464 100644
--- a/dune/gfe/vertexnormals.hh
+++ b/dune/gfe/vertexnormals.hh
@@ -27,7 +27,7 @@ std::vector<UnitVector<typename GridView::ctype,3> > computeVertexNormals(const
 
   for (const auto& element : elements(gridView))
   {
-    for (int i=0; i<element.subEntities(2); i++)
+    for (std::size_t i=0; i<element.subEntities(2); i++)
     {
       auto cornerPos = Dune::ReferenceElements<double,2>::general(element.type()).position(i,2);
       auto tangent = element.geometry().jacobianTransposed(cornerPos);
-- 
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