Fixed var initialization

src/DataVampire.h

@@ -88,7 +88,7 @@ public:
 		double verposstd;
 		double validvalues;
 	};
-	int array_idx = 0;
+	int array_idx;
 	acq_array_t acq_array[DATAVAMPIRE_MAX_SIZE];
 
 	Tango::DeviceProxy *device, *bn_device;