[libxml++] SchemaValidatorBase: Use the override keyword.

[Murray Cumming <murrayc src gnome org>]

commit dcda6a10ee46501cc11559495f4040eb44d24a74
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Nov 5 23:16:44 2015 +0100

    SchemaValidatorBase: Use the override keyword.
    
    Though this is strange on pure virtual methods. These only
    seem to be repeated here so they can have more specific documentation
    than in the base class.

 libxml++/validators/schemavalidatorbase.h |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/libxml++/validators/schemavalidatorbase.h b/libxml++/validators/schemavalidatorbase.h
index 274ad94..bc7b315 100644
--- a/libxml++/validators/schemavalidatorbase.h
+++ b/libxml++/validators/schemavalidatorbase.h
@@ -46,7 +46,7 @@ public:
    * @param filename The URL of the schema.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_file(const std::string& filename) = 0;
+  void parse_file(const std::string& filename) override = 0;
 
   /** Parse a schema definition from a string.
    * If the validator already contains a schema, that schema is released
@@ -54,7 +54,7 @@ public:
    * @param contents The schema definition as a string.
    * @throws xmlpp::parse_error
    */
-  virtual void parse_memory(const Glib::ustring& contents) = 0;
+  void parse_memory(const Glib::ustring& contents) override = 0;
 
   /** Parse a schema definition from a document.
    * If the validator already contains a schema, that schema is released
@@ -71,14 +71,14 @@ public:
    *   do_something();
    * @endcode
    */
-  explicit virtual operator bool() const noexcept = 0;
+  explicit virtual operator bool() const noexcept override = 0;
 
   /** Validate a document, using a previously parsed schema.
    * @param document Pointer to the document.
    * @throws xmlpp::internal_error
    * @throws xmlpp::validity_error
    */
-  virtual void validate(const Document* document) = 0;
+  void validate(const Document* document) override = 0;
 
   /** Validate an XML file, using a previously parsed schema.
    * @param filename The URL of the XML file.