refactor: use C++11 default initializers

src/httpserver.cpp

@@ -73,19 +73,16 @@ private:
     Mutex cs;
     std::condition_variable cond GUARDED_BY(cs);
     std::deque<std::unique_ptr<WorkItem>> queue GUARDED_BY(cs);
-    bool running GUARDED_BY(cs);
+    bool running GUARDED_BY(cs){true};
     const size_t maxDepth;
 
 public:
-    explicit WorkQueue(size_t _maxDepth) : running(true),
-                                 maxDepth(_maxDepth)
+    explicit WorkQueue(size_t _maxDepth) : maxDepth(_maxDepth)
     {
     }
     /** Precondition: worker threads have all stopped (they have been joined).
      */
-    ~WorkQueue()
-    {
-    }
+    ~WorkQueue() = default;
     /** Enqueue a work item */
     bool Enqueue(WorkItem* item) EXCLUSIVE_LOCKS_REQUIRED(!cs)
     {