added virtual destructors to base classes

and bumped version to 0.4

Signed-off-by: Michael Krelin <hacker@klever.net>

4 files changed, 8 insertions, 0 deletions

diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
index b9d1e54..50ff692 100644
--- a/include/opkele/consumer.h
+++ b/include/opkele/consumer.h
@@ -22,6 +22,8 @@ namespace opkele {
     class consumer_t {
         public:
 
+            virtual ~consumer_t() { }
+
             /**
              * store association. The function should be overridden in the real
              * implementation to provide persistent associations store.
diff --git a/include/opkele/extension.h b/include/opkele/extension.h
index ea0c74c..513672f 100644
--- a/include/opkele/extension.h
+++ b/include/opkele/extension.h
@@ -15,6 +15,8 @@ namespace opkele {
      */
     class extension_t {
         public:
+
+            virtual ~extension_t() { }
             /**
              * hook called by consumer before submitting data to OpenID server.
              * It is supposed to manipulate parameters list.
diff --git a/include/opkele/server.h b/include/opkele/server.h
index e7e5bb3..dd7fc41 100644
--- a/include/opkele/server.h
+++ b/include/opkele/server.h
@@ -17,6 +17,8 @@ namespace opkele {
     class server_t {
         public:
 
+            virtual ~server_t() { }
+
             /**
              * allocate the new association. The function should be overridden
              * in the real implementation to provide persistent assocations
diff --git a/include/opkele/types.h b/include/opkele/types.h
index 8f4bf73..f732a1e 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -65,6 +65,8 @@ namespace opkele {
     class association_t {
         public:
 
+            virtual ~association_t() { }
+
             /**
              * retrieve the server with which association was established.
              * @return server name