Replace deprecated use of auto_ptr when unique_ptr is available

changelog.md

@@ -46,6 +46,8 @@ HEAD
   Thank you giachi and Bastien Brunnenstein for reporting. #491
 - Compatibility: Fixes a number of build & config issues on Visual Studio 2015
 - Compatibility: Removes non-standards compliant masking behavior. #395, #469
+- Compatibility: Replace deprecated use of auto_ptr on systems where unique_ptr
+  is available.
 
 0.6.0
 - MINOR BREAKING TRANSPORT POLICY CHANGE: Custom transport policies will now be

websocketpp/common/memory.hpp

@@ -69,6 +69,7 @@ namespace lib {
     using std::enable_shared_from_this;
     using std::static_pointer_cast;
     using std::make_shared;
+    using std::unique_ptr;
 
     typedef std::unique_ptr<unsigned char[]> unique_ptr_uchar_array;
 #else

websocketpp/transport/asio/endpoint.hpp

@@ -218,8 +218,15 @@ public:
      * @param ec Set to indicate what error occurred, if any.
      */
     void init_asio(lib::error_code & ec) {
-        // Use a smart pointer until the call is successful and ownership has successfully been taken
+        // Use a smart pointer until the call is successful and ownership has 
+        // successfully been taken. Use unique_ptr when available.
+        // TODO: remove the use of auto_ptr when C++98/03 support is no longer
+        //       necessary.
+#ifdef _WEBSOCKETPP_CPP11_MEMORY_
+        lib::unique_ptr<lib::asio::io_service> service(new lib::asio::io_service());
+#else
         lib::auto_ptr<lib::asio::io_service> service(new lib::asio::io_service());
+#endif
         init_asio(service.get(), ec);
         if( !ec ) service.release(); // Call was successful, transfer ownership
         m_external_io_service = false;