Fixed resetting std::vector in mesh readers

src/TNL/Meshes/Readers/MeshReader.h

@@ -371,12 +371,25 @@ protected:
       meshDimension = spaceDimension = 0;
       cellShape = VTK::EntityShape::Vertex;
 
-      gridExtent = {};
-      gridOrigin = gridSpacing = {};
+      reset_std_vectors( gridExtent, gridOrigin, gridSpacing );
 
       pointsArray = cellConnectivityArray = cellOffsetsArray = faceConnectivityArray = faceOffsetsArray = typesArray = {};
       pointsType = connectivityType = offsetsType = typesType = "";
    }
+
+   template< typename T >
+   void reset_std_vectors( std::vector< T >& v )
+   {
+      v.clear();
+      v.shrink_to_fit();
+   }
+
+   template< typename T, typename... Ts >
+   void reset_std_vectors( std::vector< T >& v, std::vector< Ts >&... vs )
+   {
+      reset_std_vectors( v );
+      reset_std_vectors( vs... );
+   }
 };
 
 } // namespace Readers

src/TNL/Meshes/Readers/PVTIReader.h

@@ -312,7 +312,7 @@ public:
    {
       resetBase();
       ghostLevels = 0;
-      pieceSources = {};
+      reset_std_vectors( pieceSources );
       localReader.reset();
       pointTags = cellTags = {};
    }

src/TNL/Meshes/Readers/PVTUReader.h

@@ -249,7 +249,7 @@ public:
    {
       resetBase();
       ghostLevels = 0;
-      pieceSources = {};
+      reset_std_vectors( pieceSources );
       localReader.reset();
       pointTags = cellTags = pointGlobalIndices = cellGlobalIndices = {};
    }