clear fix

include/c11log/details/blocking_queue.h

@@ -97,7 +97,7 @@ public:
     {
     	{
 			std::unique_lock<std::mutex> ul(mutex_);
-			q_ = queue_t{};
+			q_.swap(queue_t());
 		}
 		item_popped_cond_.notify_all();	    
     }

src/test.cpp

@@ -86,9 +86,7 @@ void testq(int size, int pushers, int poppers)
 		
 	for(int i = 0; i < pushers; i++)
 		new std::thread(std::bind(pusher, &q));
-	
+		
-	
-
 	while(active)
 	{
 		using std::endl;