Delete instead of hide copy constructor/assigment operator

Author: mrotteveel

src/common/classes/condition.h

@@ -77,10 +77,6 @@ class Condition
 		}
 	}
 
-	// Forbid copying
-	Condition(const Condition&);
-	Condition& operator=(const Condition&);
-
 public:
 	Condition()	{ init(); }
 	explicit Condition(MemoryPool&) { init(); }
@@ -93,6 +89,10 @@ class Condition
 			system_call_failed::raise("CloseHandle(BROADCAST)");
 	}
 
+	// Forbid copying
+	Condition(const Condition&) = delete;
+	Condition& operator=(const Condition&) = delete;
+
 	void wait(Mutex& m)
 	{
 		++waiters;
@@ -155,10 +155,6 @@ class Condition
 		}
 	}
 
-	// Forbid copying
-	Condition(const Condition&);
-	Condition& operator=(const Condition&);
-
 public:
 	Condition() { init(); }
 	explicit Condition(MemoryPool&) { init(); }
@@ -173,6 +169,10 @@ class Condition
 		}
 	}
 
+	// Forbid copying
+	Condition(const Condition&) = delete;
+	Condition& operator=(const Condition&) = delete;
+
 	void notifyOne()
 	{
 		int err = pthread_cond_signal(&cv);