too many overrides

mea culpa

src/shogun/labels/DenseLabels.h

@@ -74,15 +74,15 @@ namespace shogun
 		 *
 		 * @param loader File object via which to load data
 		 */
-		virtual void load(CFile* loader) override;
+		virtual void load(CFile* loader);
 
 		/** save labels to file
 		 *
 		 * not possible with subset
 		 *
 		 * @param writer File object via which to save data
 		 */
-		virtual void save(CFile* writer) override;
+		virtual void save(CFile* writer);
 
 		/** set label
 		 *
@@ -263,7 +263,7 @@ namespace shogun
 		 */
 		int32_t get_num_labels() const override;
 
-		virtual const char* get_name() const = 0;
+		virtual const char* get_name() const override = 0;
 
 	public:
 		/** label designates classify reject */

src/shogun/labels/MultilabelLabels.h

@@ -78,7 +78,7 @@ class CMultilabelLabels : public CLabels
 	 *
 	 * @param context optional message to convey the context
 	 */
-	void ensure_valid(const char * context = NULL);
+	void ensure_valid(const char * context = NULL) override;
 
 	/** get label type
 	 *
@@ -105,7 +105,7 @@ class CMultilabelLabels : public CLabels
 	 *
 	 * @return number of classes
 	 */
-	virtual int32_t get_num_classes() const override;
+	virtual int32_t get_num_classes() const;
 
 	/** set labels
 	 *

src/shogun/labels/StructuredLabels.h

@@ -57,7 +57,7 @@ class CStructuredLabels : public CLabels
 		 *
 		 * @param label label to add
 		 */
-		virtual void add_label(CStructuredData* label) override;
+		virtual void add_label(CStructuredData* label);
 
 		/** get labels
 		 *
@@ -73,7 +73,7 @@ class CStructuredLabels : public CLabels
 		 *
 		 * @return label object
 		 */
-		virtual CStructuredData* get_label(int32_t idx) override;
+		virtual CStructuredData* get_label(int32_t idx);
 
 		/**
 		 * set label, possible with subset. This method should be used
@@ -85,7 +85,7 @@ class CStructuredLabels : public CLabels
 		 *
 		 * @return if setting was successful
 		 */
-		virtual bool set_label(int32_t idx, CStructuredData* label) override;
+		virtual bool set_label(int32_t idx, CStructuredData* label);
 
 		/** get number of labels, depending on wheter a subset is set
 		 *

src/shogun/regression/KRRNystrom.h

@@ -102,14 +102,14 @@ less than number of data points (%d)\n", m_num_rkhs_basis, n);
 	bool train_machine(CFeatures *data) override;
 
 	/** @return object name */
-	virtual const char* get_name() const { return "KRRNystrom"; }
+	virtual const char* get_name() const override { return "KRRNystrom"; }
 
 protected:
 	/** Train regression using the Nyström method.
 	 *
 	 * @return boolean to indicate success
 	 */
-	virtual bool solve_krr_system();
+	virtual bool solve_krr_system() override;
 
 	/** Sample indices to pick rows/columns from kernel matrix
 	 *