fixed minor sonar issues.

Author: Herbert Koelman

include/pthread/exceptions.hpp

@@ -99,7 +99,9 @@ namespace pthread {
      * @param pthread_errno error returned by the pthread function
      */
     condition_variable_exception( const std::string &message, const int pthread_errno = -1);
-    virtual ~condition_variable_exception(){};
+    virtual ~condition_variable_exception(){
+      // Intentionally unimplemented...
+    };
   };
 
   /** thrown to indicate that something went wrong with a thread */

include/pthread/sync_queue.hpp

@@ -220,6 +220,7 @@ namespace pthread {
     }
 
     template<typename T> sync_queue<T>::~sync_queue(){
+      // Intentionally unimplemented...
     }
 
   }; // namespace util

include/pthread/thread.hpp

@@ -68,7 +68,9 @@ namespace pthread {
     virtual void run () noexcept = 0 ;
 #endif
 
-    virtual ~runnable() {};
+    virtual ~runnable() {
+      // Intentionally unimplemented...
+    };
   };
 
   /**

src/exceptions.cpp

@@ -16,6 +16,7 @@ namespace pthread {
   };
 
   pthread_exception::~pthread_exception(){
+    // Intentionally unimplemented...
   };
 
 #if __cplusplus < 201103L