Haiku modernizing a bit the C++ code with C++11 heuristics

with BApplication

src/core/haiku/SDL_BeApp.cc

@@ -30,6 +30,7 @@
 #include <storage/Entry.h>
 #include <storage/File.h>
 #include <unistd.h>
+#include <memory>
 
 #include "SDL_BApp.h"   /* SDL_BApp class definition */
 #include "SDL_BeApp.h"
@@ -51,8 +52,9 @@ const char *signature = "application/x-SDL-executable";
 
 static int StartBeApp(void *unused)
 {
-    BApplication *App;
+    std::unique_ptr<BApplication> App;
 
+    (void)unused;
     // dig resources for correct signature
     image_info info;
     int32 cookie = 0;
@@ -69,10 +71,9 @@ static int StartBeApp(void *unused)
         }
     }
 
-    App = new SDL_BApp(signature);
+    App = std::unique_ptr<BApplication>(new SDL_BApp(signature));
 
     App->Run();
-    delete App;
     return 0;
 }
 

src/video/haiku/SDL_bmessagebox.cc

@@ -45,6 +45,7 @@
 #include <new>
 #include <vector>
 #include <algorithm>
+#include <memory>
 
 enum
 {
@@ -355,9 +356,9 @@ HAIKU_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
 	// because it is possible to create a MessageBox from another thread. This fixes the following errors:
 	// "You need a valid BApplication object before interacting with the app_server."
 	// "2 BApplication objects were created. Only one is allowed."
-	BApplication *application = NULL;
+	std::unique_ptr<BApplication> application;
 	if (be_app == NULL) {
-		application = new(std::nothrow) BApplication(signature);
+		application = std::unique_ptr<BApplication>(new(std::nothrow) BApplication(signature));
 		if (application == NULL) {
 			return SDL_SetError("Cannot create the BApplication object. Lack of memory?");
 		}
@@ -381,10 +382,6 @@ HAIKU_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
 		delete messageBox;
 	}
 	*/
-	if (application != NULL) {
-		delete application;
-	}
-
 	// Initialize button by real pushed value then.
 	*buttonid = pushedButton;