diff --git a/ml/include/pcl/ml/feature_handler.h b/ml/include/pcl/ml/feature_handler.h
index 112af1a8579..5ccc3f9ccf2 100644
--- a/ml/include/pcl/ml/feature_handler.h
+++ b/ml/include/pcl/ml/feature_handler.h
@@ -49,7 +49,7 @@ template <class FeatureType, class DataSet, class ExampleIndex>
 class PCL_EXPORTS FeatureHandler {
 public:
   /** Destructor. */
-  virtual ~FeatureHandler()= default;;
+  virtual ~FeatureHandler() = default;
 
   /** Creates random features.
    *
diff --git a/ml/include/pcl/ml/impl/dt/decision_forest_evaluator.hpp b/ml/include/pcl/ml/impl/dt/decision_forest_evaluator.hpp
index 62c68dfecfe..69ef6a85788 100644
--- a/ml/include/pcl/ml/impl/dt/decision_forest_evaluator.hpp
+++ b/ml/include/pcl/ml/impl/dt/decision_forest_evaluator.hpp
@@ -61,8 +61,7 @@ template <class FeatureType,
           class ExampleIndex,
           class NodeType>
 pcl::DecisionForestEvaluator<FeatureType, DataSet, LabelType, ExampleIndex, NodeType>::
-    ~DecisionForestEvaluator()
-= default;
+    ~DecisionForestEvaluator() = default;
 
 template <class FeatureType,
           class DataSet,
diff --git a/ml/include/pcl/ml/impl/dt/decision_forest_trainer.hpp b/ml/include/pcl/ml/impl/dt/decision_forest_trainer.hpp
index df72dc024f6..a7657651bc8 100644
--- a/ml/include/pcl/ml/impl/dt/decision_forest_trainer.hpp
+++ b/ml/include/pcl/ml/impl/dt/decision_forest_trainer.hpp
@@ -55,8 +55,7 @@ template <class FeatureType,
           class ExampleIndex,
           class NodeType>
 DecisionForestTrainer<FeatureType, DataSet, LabelType, ExampleIndex, NodeType>::
-    ~DecisionForestTrainer()
-= default;
+    ~DecisionForestTrainer() = default;
 
 template <class FeatureType,
           class DataSet,
diff --git a/ml/include/pcl/ml/impl/dt/decision_tree_evaluator.hpp b/ml/include/pcl/ml/impl/dt/decision_tree_evaluator.hpp
index ea4b835fa75..fb49a71b63b 100644
--- a/ml/include/pcl/ml/impl/dt/decision_tree_evaluator.hpp
+++ b/ml/include/pcl/ml/impl/dt/decision_tree_evaluator.hpp
@@ -52,8 +52,7 @@ template <class FeatureType,
           class ExampleIndex,
           class NodeType>
 DecisionTreeEvaluator<FeatureType, DataSet, LabelType, ExampleIndex, NodeType>::
-    DecisionTreeEvaluator()
-= default;
+    DecisionTreeEvaluator() = default;
 
 template <class FeatureType,
           class DataSet,
@@ -61,8 +60,7 @@ template <class FeatureType,
           class ExampleIndex,
           class NodeType>
 DecisionTreeEvaluator<FeatureType, DataSet, LabelType, ExampleIndex, NodeType>::
-    ~DecisionTreeEvaluator()
-= default;
+    ~DecisionTreeEvaluator() = default;
 
 template <class FeatureType,
           class DataSet,
diff --git a/ml/include/pcl/ml/impl/dt/decision_tree_trainer.hpp b/ml/include/pcl/ml/impl/dt/decision_tree_trainer.hpp
index cc4c82c7063..be2d3610847 100644
--- a/ml/include/pcl/ml/impl/dt/decision_tree_trainer.hpp
+++ b/ml/include/pcl/ml/impl/dt/decision_tree_trainer.hpp
@@ -64,8 +64,7 @@ template <class FeatureType,
           class ExampleIndex,
           class NodeType>
 DecisionTreeTrainer<FeatureType, DataSet, LabelType, ExampleIndex, NodeType>::
-    ~DecisionTreeTrainer()
-= default;
+    ~DecisionTreeTrainer() = default;
 
 template <class FeatureType,
           class DataSet,
diff --git a/ml/include/pcl/ml/pairwise_potential.h b/ml/include/pcl/ml/pairwise_potential.h
index 182e3febbdd..ee7ab467e36 100644
--- a/ml/include/pcl/ml/pairwise_potential.h
+++ b/ml/include/pcl/ml/pairwise_potential.h
@@ -54,7 +54,7 @@ class PairwisePotential {
                     const float w);
 
   /** Deconstructor for PairwisePotential class. */
-  ~PairwisePotential()= default;;
+  ~PairwisePotential() = default;
 
   void
   compute(std::vector<float>& out,
diff --git a/ml/include/pcl/ml/stats_estimator.h b/ml/include/pcl/ml/stats_estimator.h
index d9cee65edde..72424be49bc 100644
--- a/ml/include/pcl/ml/stats_estimator.h
+++ b/ml/include/pcl/ml/stats_estimator.h
@@ -50,7 +50,7 @@ class PCL_EXPORTS StatsEstimator {
 
 public:
   /** Destructor. */
-  virtual ~StatsEstimator()= default;;
+  virtual ~StatsEstimator() = default;
 
   /** Returns the number of brances a node can have (e.g. a binary tree has 2). */
   virtual std::size_t
diff --git a/ml/src/svm.cpp b/ml/src/svm.cpp
index 9ccc508ebfb..379ee3458ba 100644
--- a/ml/src/svm.cpp
+++ b/ml/src/svm.cpp
@@ -520,9 +520,9 @@ Kernel::k_function(const svm_node* x, const svm_node* y, const svm_parameter& pa
 class Solver {
 
 public:
-  Solver()= default;;
+  Solver() = default;
 
-  virtual ~Solver()= default;;
+  virtual ~Solver() = default;
 
   struct SolutionInfo {
     double obj;
diff --git a/registration/include/pcl/registration/transformation_estimation.h b/registration/include/pcl/registration/transformation_estimation.h
index 18ac1a979fa..7d00ef38f90 100644
--- a/registration/include/pcl/registration/transformation_estimation.h
+++ b/registration/include/pcl/registration/transformation_estimation.h
@@ -63,8 +63,8 @@ class TransformationEstimation {
 public:
   using Matrix4 = Eigen::Matrix<Scalar, 4, 4>;
 
-  TransformationEstimation()= default;;
-  virtual ~TransformationEstimation()= default;;
+  TransformationEstimation() = default;
+  virtual ~TransformationEstimation() = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud. \param[in] cloud_src the source point cloud dataset \param[in]
diff --git a/registration/include/pcl/registration/transformation_estimation_2D.h b/registration/include/pcl/registration/transformation_estimation_2D.h
index b4bc662710c..e079a5b10d2 100644
--- a/registration/include/pcl/registration/transformation_estimation_2D.h
+++ b/registration/include/pcl/registration/transformation_estimation_2D.h
@@ -65,8 +65,8 @@ class TransformationEstimation2D
   using Matrix4 =
       typename TransformationEstimation<PointSource, PointTarget, Scalar>::Matrix4;
 
-  TransformationEstimation2D()= default;;
-  virtual ~TransformationEstimation2D()= default;;
+  TransformationEstimation2D() = default;
+  virtual ~TransformationEstimation2D() = default;
 
   /** \brief Estimate a rigid transformation between a source and a target point cloud
    * in 2D. \param[in] cloud_src the source point cloud dataset \param[in] cloud_tgt the
diff --git a/registration/include/pcl/registration/transformation_estimation_dual_quaternion.h b/registration/include/pcl/registration/transformation_estimation_dual_quaternion.h
index c5315147331..90412876ed6 100644
--- a/registration/include/pcl/registration/transformation_estimation_dual_quaternion.h
+++ b/registration/include/pcl/registration/transformation_estimation_dual_quaternion.h
@@ -64,8 +64,8 @@ class TransformationEstimationDualQuaternion
   using Matrix4 =
       typename TransformationEstimation<PointSource, PointTarget, Scalar>::Matrix4;
 
-  TransformationEstimationDualQuaternion()= default;;
-  ~TransformationEstimationDualQuaternion()= default;;
+  TransformationEstimationDualQuaternion() = default;
+  ~TransformationEstimationDualQuaternion() = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using dual quaternion optimization \param[in] cloud_src the source
diff --git a/registration/include/pcl/registration/transformation_estimation_lm.h b/registration/include/pcl/registration/transformation_estimation_lm.h
index ebf1b2a0310..94705070796 100644
--- a/registration/include/pcl/registration/transformation_estimation_lm.h
+++ b/registration/include/pcl/registration/transformation_estimation_lm.h
@@ -104,7 +104,7 @@ class TransformationEstimationLM
   }
 
   /** \brief Destructor. */
-  ~TransformationEstimationLM() override= default;;
+  ~TransformationEstimationLM() override = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using LM. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_estimation_point_to_plane.h b/registration/include/pcl/registration/transformation_estimation_point_to_plane.h
index 83a02a87476..bb9df22e7d4 100644
--- a/registration/include/pcl/registration/transformation_estimation_point_to_plane.h
+++ b/registration/include/pcl/registration/transformation_estimation_point_to_plane.h
@@ -71,8 +71,8 @@ class TransformationEstimationPointToPlane
 
   using Vector4 = Eigen::Matrix<Scalar, 4, 1>;
 
-  TransformationEstimationPointToPlane()= default;;
-  ~TransformationEstimationPointToPlane()= default;;
+  TransformationEstimationPointToPlane() = default;
+  ~TransformationEstimationPointToPlane() = default;
 
 protected:
   Scalar
diff --git a/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls.h b/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls.h
index db72b7de767..3e79c9f5812 100644
--- a/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls.h
+++ b/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls.h
@@ -71,8 +71,8 @@ class TransformationEstimationPointToPlaneLLS
   using Matrix4 =
       typename TransformationEstimation<PointSource, PointTarget, Scalar>::Matrix4;
 
-  TransformationEstimationPointToPlaneLLS()= default;;
-  ~TransformationEstimationPointToPlaneLLS() override= default;;
+  TransformationEstimationPointToPlaneLLS() = default;
+  ~TransformationEstimationPointToPlaneLLS() override = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using SVD. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls_weighted.h b/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls_weighted.h
index ebbb34a96c6..cf9f581e559 100644
--- a/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls_weighted.h
+++ b/registration/include/pcl/registration/transformation_estimation_point_to_plane_lls_weighted.h
@@ -74,8 +74,8 @@ class TransformationEstimationPointToPlaneLLSWeighted
   using Matrix4 =
       typename TransformationEstimation<PointSource, PointTarget, Scalar>::Matrix4;
 
-  TransformationEstimationPointToPlaneLLSWeighted()= default;;
-  virtual ~TransformationEstimationPointToPlaneLLSWeighted()= default;;
+  TransformationEstimationPointToPlaneLLSWeighted() = default;
+  virtual ~TransformationEstimationPointToPlaneLLSWeighted() = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using SVD. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_estimation_point_to_plane_weighted.h b/registration/include/pcl/registration/transformation_estimation_point_to_plane_weighted.h
index f40e27aa82f..063e2ebcddd 100644
--- a/registration/include/pcl/registration/transformation_estimation_point_to_plane_weighted.h
+++ b/registration/include/pcl/registration/transformation_estimation_point_to_plane_weighted.h
@@ -115,7 +115,7 @@ class TransformationEstimationPointToPlaneWeighted
   }
 
   /** \brief Destructor. */
-  virtual ~TransformationEstimationPointToPlaneWeighted()= default;;
+  virtual ~TransformationEstimationPointToPlaneWeighted() = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using LM. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_estimation_svd.h b/registration/include/pcl/registration/transformation_estimation_svd.h
index d67c755cd4c..c0545e374c5 100644
--- a/registration/include/pcl/registration/transformation_estimation_svd.h
+++ b/registration/include/pcl/registration/transformation_estimation_svd.h
@@ -68,7 +68,7 @@ class TransformationEstimationSVD
    * \param[in] use_umeyama Toggles whether or not to use 3rd party software*/
   TransformationEstimationSVD(bool use_umeyama = true) : use_umeyama_(use_umeyama) {}
 
-  ~TransformationEstimationSVD() override= default;;
+  ~TransformationEstimationSVD() override = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using SVD. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_estimation_symmetric_point_to_plane_lls.h b/registration/include/pcl/registration/transformation_estimation_symmetric_point_to_plane_lls.h
index 523363d88ae..89236b83be8 100644
--- a/registration/include/pcl/registration/transformation_estimation_symmetric_point_to_plane_lls.h
+++ b/registration/include/pcl/registration/transformation_estimation_symmetric_point_to_plane_lls.h
@@ -73,7 +73,7 @@ class TransformationEstimationSymmetricPointToPlaneLLS
 
   TransformationEstimationSymmetricPointToPlaneLLS()
   : enforce_same_direction_normals_(true){};
-  ~TransformationEstimationSymmetricPointToPlaneLLS()= default;;
+  ~TransformationEstimationSymmetricPointToPlaneLLS() = default;
 
   /** \brief Estimate a rigid rotation transformation between a source and a target
    * point cloud using SVD. \param[in] cloud_src the source point cloud dataset
diff --git a/registration/include/pcl/registration/transformation_validation.h b/registration/include/pcl/registration/transformation_validation.h
index 7fd9f09bbde..fd34482a60e 100644
--- a/registration/include/pcl/registration/transformation_validation.h
+++ b/registration/include/pcl/registration/transformation_validation.h
@@ -80,8 +80,8 @@ class TransformationValidation {
   using PointCloudTargetPtr = typename PointCloudTarget::Ptr;
   using PointCloudTargetConstPtr = typename PointCloudTarget::ConstPtr;
 
-  TransformationValidation()= default;;
-  virtual ~TransformationValidation()= default;;
+  TransformationValidation() = default;
+  virtual ~TransformationValidation() = default;
 
   /** \brief Validate the given transformation with respect to the input cloud data, and
    * return a score. Pure virtual.
diff --git a/registration/include/pcl/registration/transformation_validation_euclidean.h b/registration/include/pcl/registration/transformation_validation_euclidean.h
index 8c9b19451e7..b22ed68adaf 100644
--- a/registration/include/pcl/registration/transformation_validation_euclidean.h
+++ b/registration/include/pcl/registration/transformation_validation_euclidean.h
@@ -104,7 +104,7 @@ class TransformationValidationEuclidean {
   , force_no_recompute_(false)
   {}
 
-  virtual ~TransformationValidationEuclidean()= default;;
+  virtual ~TransformationValidationEuclidean() = default;
 
   /** \brief Set the maximum allowable distance between a point and its correspondence
    * in the target in order for a correspondence to be considered \a valid. Default:
diff --git a/registration/include/pcl/registration/warp_point_rigid.h b/registration/include/pcl/registration/warp_point_rigid.h
index a48939e822a..2aa6dec1603 100644
--- a/registration/include/pcl/registration/warp_point_rigid.h
+++ b/registration/include/pcl/registration/warp_point_rigid.h
@@ -71,7 +71,7 @@ class WarpPointRigid {
   };
 
   /** \brief Destructor. */
-  virtual ~WarpPointRigid()= default;;
+  virtual ~WarpPointRigid() = default;
 
   /** \brief Set warp parameters. Pure virtual.
    * \param[in] p warp parameters
diff --git a/stereo/include/pcl/stereo/impl/disparity_map_converter.hpp b/stereo/include/pcl/stereo/impl/disparity_map_converter.hpp
index d84346e4d02..773a2870411 100644
--- a/stereo/include/pcl/stereo/impl/disparity_map_converter.hpp
+++ b/stereo/include/pcl/stereo/impl/disparity_map_converter.hpp
@@ -59,8 +59,7 @@ pcl::DisparityMapConverter<PointT>::DisparityMapConverter()
 {}
 
 template <typename PointT>
-pcl::DisparityMapConverter<PointT>::~DisparityMapConverter()
-= default;
+pcl::DisparityMapConverter<PointT>::~DisparityMapConverter() = default;
 
 template <typename PointT>
 inline void
diff --git a/stereo/include/pcl/stereo/stereo_matching.h b/stereo/include/pcl/stereo/stereo_matching.h
index cb007ce89f8..7dd966adc18 100644
--- a/stereo/include/pcl/stereo/stereo_matching.h
+++ b/stereo/include/pcl/stereo/stereo_matching.h
@@ -428,7 +428,7 @@ class PCL_EXPORTS GrayStereoMatching : public StereoMatching {
 class PCL_EXPORTS BlockBasedStereoMatching : public GrayStereoMatching {
 public:
   BlockBasedStereoMatching();
-  ~BlockBasedStereoMatching() override= default;;
+  ~BlockBasedStereoMatching() override = default;
 
   /** \brief setter for the radius of the squared window
    * \param[in] radius radius of the squared window used to compute the block-based
@@ -465,7 +465,7 @@ class PCL_EXPORTS AdaptiveCostSOStereoMatching : public GrayStereoMatching {
 public:
   AdaptiveCostSOStereoMatching();
 
-  ~AdaptiveCostSOStereoMatching() override= default;;
+  ~AdaptiveCostSOStereoMatching() override = default;
 
   /** \brief setter for the radius (half length) of the column used for cost aggregation
    * \param[in] radius radius (half length) of the column used for cost aggregation; the