correction of cash in case that no probe connected to mcce

src/MCCE2Electrometers.cpp

@@ -159,18 +159,6 @@ void MCCE2Electrometers::delete_device()
 
 	//	Delete device allocated objects
 	//  Delete device's allocated object
-  if(this->_electrometerCH1)
-  {
-    delete this->_electrometerCH1;
-    this->_electrometerCH1 = 0;
-  }
-
-  if(this->_electrometerCH2)
-  {
-    delete this->_electrometerCH2;
-    this->_electrometerCH2 = 0;
-  }
-
   DELETE_DEVSTRING_ATTRIBUTE(attr_range1_read);
   DELETE_DEVSTRING_ATTRIBUTE(attr_range2_read);
   DELETE_SCALAR_ATTRIBUTE(attr_electrometerChannel_read);
@@ -520,7 +508,7 @@ void MCCE2Electrometers::write_electrometerChannel(Tango::WAttribute &attr)
     {
       WARN_STREAM << "Cannot control electrometer on this channel : seems that nothing is connected on!" << std::endl;
       // nothing is connected on this channel      
-      *attr_range1_read = &_notConnectedStr[0];
+      strcpy(*attr_range1_read,_notConnectedStr.c_str());
     }
   }
   else if ( w_val == ELETRO_CHANNEL_TWO )
@@ -538,7 +526,7 @@ void MCCE2Electrometers::write_electrometerChannel(Tango::WAttribute &attr)
     {
       WARN_STREAM << "Cannot control electrometer on this channel : seems that nothing is connected on!" << std::endl;
       //- warn nothing is connected on this channel
-      *attr_range2_read = &_notConnectedStr[0];
+      strcpy(*attr_range2_read,_notConnectedStr.c_str());
     }
   }
   attr_electrometerChannel_write = w_val;
@@ -559,7 +547,7 @@ void MCCE2Electrometers::read_range1(Tango::Attribute &attr)
 	/*----- PROTECTED REGION ID(MCCE2Electrometers::read_range1) ENABLED START -----*/
 	if ( !this->_electrometerCH1 )
   {
-    *attr_range1_read = &_notConnectedStr[0];
+    strcpy(*attr_range1_read,_notConnectedStr.c_str());
   }
   else
   {
@@ -589,7 +577,7 @@ void MCCE2Electrometers::read_range2(Tango::Attribute &attr)
 	/*----- PROTECTED REGION ID(MCCE2Electrometers::read_range2) ENABLED START -----*/
 	if ( !this->_electrometerCH2 )
   {
-    *attr_range2_read = &_notConnectedStr[0];
+    strcpy(*attr_range2_read,_notConnectedStr.c_str());
   }
   else
   {