add buffer to overflowsize

dune/istl/bcrsmatrix.hh

@@ -270,8 +270,7 @@ namespace Dune {
   class BCRSMatrix
   {
     friend struct MatrixDimension<BCRSMatrix>;
-
-  private:
+  public:
     enum BuildStage {
       /** @brief Matrix is not built at all. */
       notbuilt=0,
@@ -284,8 +283,6 @@ namespace Dune {
       built=2
     };
 
-  public:
-
     //===== type definitions and constants
 
     //! export the type representing the field
@@ -1071,9 +1068,6 @@ namespace Dune {
         std::ptrdiff_t offset = end - r[row].getindexptr();
         B* apos = r[row].getptr() + offset;
 
-        //placement new to call constructor of B
-        new (apos) B;
-
         //increase rowsize
         r[row].setsize(r[row].getsize()+1);