changed return type of order() to int

dune/vtk/gridcreators/lagrangegridcreator.hh

@@ -198,19 +198,19 @@ namespace Dune
 
       /// Determine lagrange order from number of points
       template <class LocalParam>
-      unsigned int order (LocalParam const& localParam) const
+      int order (LocalParam const& localParam) const
       {
         GeometryType type = localParam.type;
-        std::size_t nNodes = localParam.nodes.size();
-        for (unsigned int o = 1; o <= nNodes; ++o)
-          if (numLagrangePoints(type.id(), type.dim(), o) == nNodes)
+        int nNodes = localParam.nodes.size();
+        for (int o = 1; o <= nNodes; ++o)
+          if (numLagrangePoints(type.id(), type.dim(), o) == std::size_t(nNodes))
             return o;
 
         return 1;
       }
 
       /// Determine lagrange order from number of points from the first element parametrization
-      unsigned int order () const
+      int order () const
       {
         assert(!parametrization_.empty());
         return order(parametrization_.front());
@@ -292,7 +292,7 @@ namespace Dune
     public:
       /// Construct a local element parametrization
       template <class Nodes, class LocalParam>
-      LocalParametrization (Nodes const& nodes, LocalParam const& param, unsigned int order)
+      LocalParametrization (Nodes const& nodes, LocalParam const& param, int order)
         : localFE_(param.type, order)
         , localNodes_(param.nodes.size())
       {
@@ -302,7 +302,7 @@ namespace Dune
 
       /// Construct a local element parametrization for elements with permuted corners
       template <class Nodes, class LocalParam, class Permutation>
-      LocalParametrization (Nodes const& nodes, LocalParam const& param, unsigned int order, Permutation const& permutation)
+      LocalParametrization (Nodes const& nodes, LocalParam const& param, int order, Permutation const& permutation)
         : LocalParametrization(nodes, param, order)
       {
         auto refElem = referenceElement<ctype,Grid::dimension>(param.type);