[libxml++/libxml++-2.42: 3/3] C++11: Use of override keyword.

[Murray Cumming <murrayc src gnome org>]

commit 174481a8e5aac93fee090ab800dc5398e1492948
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Jun 20 21:52:56 2017 +0200

    C++11: Use of override keyword.
    
    To fix the build with --enable-warnings=fatal.

 examples/sax_parser_build_dom/svgparser.h |   20 ++++++++++----------
 examples/sax_parser_entities/myparser.h   |    2 +-
 libxml++/validators/relaxngvalidator.h    |   12 ++++++------
 libxml++/validators/xsdvalidator.h        |   12 ++++++------
 4 files changed, 23 insertions(+), 23 deletions(-)
---
diff --git a/examples/sax_parser_build_dom/svgparser.h b/examples/sax_parser_build_dom/svgparser.h
index b7d99fc..b14a2a6 100644
--- a/examples/sax_parser_build_dom/svgparser.h
+++ b/examples/sax_parser_build_dom/svgparser.h
@@ -38,17 +38,17 @@ public:
 
 protected:
   // SAX parser callbacks
-  void on_start_document() {};
-  void on_end_document() {};
+  void on_start_document() override {};
+  void on_end_document() override {};
   void on_start_element(const Glib::ustring& name,
-                                const AttributeList& properties);
-  void on_end_element(const Glib::ustring& name);
-  void on_characters(const Glib::ustring& characters);
-  void on_comment(const Glib::ustring& text);
-  void on_warning(const Glib::ustring& text);
-  void on_error(const Glib::ustring& text);
-  void on_fatal_error(const Glib::ustring& text);
-  void on_cdata_block(const Glib::ustring& text);
+                                const AttributeList& properties) override;
+  void on_end_element(const Glib::ustring& name) override;
+  void on_characters(const Glib::ustring& characters) override;
+  void on_comment(const Glib::ustring& text) override;
+  void on_warning(const Glib::ustring& text) override;
+  void on_error(const Glib::ustring& text) override;
+  void on_fatal_error(const Glib::ustring& text) override;
+  void on_cdata_block(const Glib::ustring& text) override;
 
 private:
   // context is a stack to keep track of parent node while the SAX parser
diff --git a/examples/sax_parser_entities/myparser.h b/examples/sax_parser_entities/myparser.h
index 91476ff..dbec8b3 100644
--- a/examples/sax_parser_entities/myparser.h
+++ b/examples/sax_parser_entities/myparser.h
@@ -35,7 +35,7 @@ protected:
   void on_start_document() override;
   void on_end_document() override;
   virtual void on_start_element(const Glib::ustring& name,
-                                const AttributeList& properties);
+                                const AttributeList& properties) override;
   void on_end_element(const Glib::ustring& name) override;
   void on_characters(const Glib::ustring& characters) override;
   void on_comment(const Glib::ustring& text) override;
diff --git a/libxml++/validators/relaxngvalidator.h b/libxml++/validators/relaxngvalidator.h
index 5cd5ad7..7337745 100644
--- a/libxml++/validators/relaxngvalidator.h
+++ b/libxml++/validators/relaxngvalidator.h
@@ -83,7 +83,7 @@ public:
    * @param filename The URL of the schema.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_file(const Glib::ustring& filename);
+  void parse_file(const Glib::ustring& filename) override;
 
   /** Parse a schema definition from a string.
    * The schema must be defined with XML syntax. The compact syntax is not supported.
@@ -93,7 +93,7 @@ public:
    * @param contents The schema definition as a string.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_memory(const Glib::ustring& contents);
+  void parse_memory(const Glib::ustring& contents) override;
 
   /** Parse a schema definition from a document.
    * If the validator already contains a schema, that schema is released
@@ -101,7 +101,7 @@ public:
    * @param document A preparsed document tree, containing the schema definition.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_document(const Document* document);
+  void parse_document(const Document* document) override;
 
   /** Set a schema.
    * If the validator already contains a schema, that schema is released
@@ -123,7 +123,7 @@ public:
    *   do_something();
    * @endcode
    */
-  virtual operator BoolExpr() const;
+  operator BoolExpr() const override;
 
   /** Get the schema.
    * @returns A pointer to the schema, or <tt>nullptr</tt>.
@@ -140,7 +140,7 @@ public:
    * @throws xmlpp::internal_error
    * @throws xmlpp::validity_error
    */
-  virtual void validate(const Document* document);
+  void validate(const Document* document) override;
 
   /** Validate an XML file, using a previously parsed schema.
    * @param filename The URL of the XML file.
@@ -148,7 +148,7 @@ public:
    * @throws xmlpp::parse_error
    * @throws xmlpp::validity_error
    */
-  virtual void validate(const Glib::ustring& filename);
+  void validate(const Glib::ustring& filename) override;
 
 protected:
   void initialize_valid() override;
diff --git a/libxml++/validators/xsdvalidator.h b/libxml++/validators/xsdvalidator.h
index 941d7f1..dd90d78 100644
--- a/libxml++/validators/xsdvalidator.h
+++ b/libxml++/validators/xsdvalidator.h
@@ -76,7 +76,7 @@ public:
    * @param filename The URL of the schema.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_file(const Glib::ustring& filename);
+  void parse_file(const Glib::ustring& filename) override;
 
   /** Parse a schema definition from a string.
    * If the validator already contains a schema, that schema is released
@@ -84,7 +84,7 @@ public:
    * @param contents The schema definition as a string.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_memory(const Glib::ustring& contents);
+  void parse_memory(const Glib::ustring& contents) override;
 
   /** Parse a schema definition from a document.
    * If the validator already contains a schema, that schema is released
@@ -92,7 +92,7 @@ public:
    * @param document A preparsed document tree, containing the schema definition.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_document(const Document* document);
+  void parse_document(const Document* document) override;
 
   /** Set a schema.
    * If the validator already contains a schema, that schema is released
@@ -114,7 +114,7 @@ public:
    *   do_something();
    * @endcode
    */
-  virtual operator BoolExpr() const;
+  operator BoolExpr() const override;
 
   /** Get the schema.
    * @returns A pointer to the schema, or <tt>nullptr</tt>.
@@ -131,14 +131,14 @@ public:
    * @throws xmlpp::internal_error
    * @throws xmlpp::validity_error
    */
-  virtual void validate(const Document* document);
+  void validate(const Document* document) override;
 
   /** Validate an XML file, using a previously parsed schema.
    * @param filename The URL of the XML file.
    * @throws xmlpp::internal_error
    * @throws xmlpp::validity_error
    */
-  virtual void validate(const Glib::ustring& filename);
+  void validate(const Glib::ustring& filename) override;
 
 protected:
   void initialize_valid() override;