Address minor comments

Change int to size_t
Remove hasNNC_

opm/parser/eclipse/EclipseState/Grid/NNC.cpp

@@ -48,10 +48,11 @@ namespace Opm
                     nnc2_.push_back(global_index2);
 
                     const double trans = nnc->getRecord(i)->getItem(6)->getRawDouble(0);
+
                     trans_.push_back(trans);
+                    //std::cout << trans << std::endl;
                 }
             }
-            hasNNC_ = true;
         }
     }
 
@@ -61,12 +62,12 @@ namespace Opm
         trans_.push_back(trans);
     }
 
-    int NNC::numNNC() {
+    size_t NNC::numNNC() const {
         return(nnc1_.size());
     }
 
-    bool NNC::hasNNC() {
-        return hasNNC_;
+    bool NNC::hasNNC() const {
+        return nnc1_.size()>0;
     }
 
 

opm/parser/eclipse/EclipseState/Grid/NNC.hpp

@@ -35,14 +35,13 @@ public:
     const std::vector<int>& nnc1() const { return nnc1_; }
     const std::vector<int>& nnc2() const { return nnc2_; }
     const std::vector<double>& trans() const { return trans_; }
-    int numNNC();
-    bool hasNNC();
+    size_t numNNC() const;
+    bool hasNNC() const;
 
 private:
     std::vector<int> nnc1_;
     std::vector<int> nnc2_;
     std::vector<double> trans_;
-    bool hasNNC_;
 };