Optimized mesh initializer for cases with disabled entity orientations

src/TNL/Meshes/MeshDetails/initializer/Initializer.h

@@ -93,7 +93,7 @@ class Initializer
       {
          // copy points
          mesh.template setEntitiesCount< 0 >( points.getSize() );
-         mesh.getPoints() = points;
+         mesh.getPoints().swap( points );
          points.reset();
 
          this->mesh = &mesh;
@@ -354,6 +354,7 @@ class InitializerLayer< MeshConfig,
          EntityInitializerType::initSuperentities( initializer, mesh );
          this->seedsIndexedSet.clear();
          this->referenceOrientations.clear();
+         this->referenceOrientations.shrink_to_fit();
 
          BaseType::initEntities( initializer, mesh );
       }

src/TNL/Meshes/MeshDetails/traits/MeshEntityTraits.h

@@ -52,6 +52,16 @@ class MeshEntityTraits
 {
    using GlobalIndexType = typename MeshConfig::GlobalIndexType;
 
+   static constexpr bool checkOrientationNeeded()
+   {
+      if( Dimension == 0 || Dimension == MeshConfig::meshDimension )
+         return false;
+      for( int d = 1; d < Dimension; d++ )
+         if( MeshConfig::subentityOrientationStorage( EntityTopology(), d ) )
+            return true;
+      return false;
+   }
+
 public:
    static_assert( 0 <= Dimension && Dimension <= MeshConfig::meshDimension, "invalid dimension" );
 
@@ -64,7 +74,7 @@ public:
    using SeedSetType                   = std::unordered_set< typename SeedIndexedSetType::key_type, typename SeedIndexedSetType::hasher, typename SeedIndexedSetType::key_equal >;
    using ReferenceOrientationArrayType = std::vector< ReferenceOrientationType >;
 
-   static constexpr bool orientationNeeded = 0 < Dimension && Dimension < MeshConfig::meshDimension;
+   static constexpr bool orientationNeeded = checkOrientationNeeded();
 };
 
 } // namespace Meshes