String -> std::string, toString methods removed

src/factory/Compare.cpp

@@ -7,13 +7,15 @@
  * @author mes
  */
 
-#define epicsExportSharedSymbols
-#include <pv/convert.h>
-
 #include <algorithm>
 #include <iterator>
 #include <sstream>
 
+#define epicsExportSharedSymbols
+#include <pv/convert.h>
+
+using std::string;
+
 namespace epics { namespace pvData {
 
 // Introspection object comparision
@@ -202,7 +204,7 @@ bool compareField(const PVScalarArray* left, const PVScalarArray* right)
     OP(pvLong, int64);
     OP(pvFloat, float);
     OP(pvDouble, double);
-    OP(pvString, String);
+    OP(pvString, string);
 #undef OP
     }
     throw std::logic_error("PVScalarArray with invalid element type!");