Changed some DUNE_USUED uses - introduced by r6607 - to other, appropriate ways of surpressing a

warning.

[[Imported from SVN: r6631]]

dune/common/test/bitsetvectortest.cc

@@ -172,9 +172,11 @@ void doTest() {
   testConstContainer(cbbf);
 
   // iterator interface
-  ConstReferenceOp<BBF> cop DUNE_UNUSED;
+#ifndef NDEBUG
+  ConstReferenceOp<BBF> cop;
   assert(testIterator(bbf, cop) == 0);
   assert(testIterator(cbbf, cop) == 0);
+#endif
 }
 
 int main()

dune/common/test/parametertreetest.cc

@@ -20,10 +20,12 @@ void testparam(const P & p)
   // try reading array like structures
   std::vector<unsigned int>
   array1 = p.template get< std::vector<unsigned int> >("array");
+#ifndef NDEBUG
   Dune::array<unsigned int, 8>
-  array2 DUNE_UNUSED = p.template get< Dune::array<unsigned int, 8> >("array");
+  array2 = p.template get< Dune::array<unsigned int, 8> >("array");
   Dune::FieldVector<unsigned int, 8>
-  array3 DUNE_UNUSED = p.template get< Dune::FieldVector<unsigned int, 8> >("array");
+  array3 = p.template get< Dune::FieldVector<unsigned int, 8> >("array");
+#endif
   assert(array1.size() == 8);
   std::cout << "array =";
   for (unsigned int i=0; i<8; i++)