Merge pull request #81 from yorickdewid/patch-1

Remove explicit cast on void pointer operator

Author: c-rack

zmq.hpp

@@ -495,12 +495,12 @@ namespace zmq
             close();
         }
 
-        inline ZMQ_EXPLICIT operator void* () ZMQ_NOTHROW
+        inline operator void* () ZMQ_NOTHROW
         {
             return ptr;
         }
 
-        inline ZMQ_EXPLICIT operator void const* () const ZMQ_NOTHROW
+        inline operator void const* () const ZMQ_NOTHROW
         {
             return ptr;
         }