diff --git a/pvDataApp/factory/Compare.cpp b/pvDataApp/factory/Compare.cpp
index 8237cc5..d47d533 100644
--- a/pvDataApp/factory/Compare.cpp
+++ b/pvDataApp/factory/Compare.cpp
@@ -188,26 +188,23 @@ bool compareField(const PVStructure* left, const PVStructure* right)
 
 bool compareField(const PVStructureArray* left, const PVStructureArray* right)
 {
-    if(left->getLength()!=right->getLength())
+    if(*left->getStructureArray()->getStructure()
+        != *right->getStructureArray()->getStructure())
         return false;
 
-    StructureConstPtr ls = left->getStructureArray()->getStructure();
+    PVStructureArray::const_svector ld=left->view(), rd=right->view();
 
-    if(*ls!=*right->getStructureArray()->getStructure())
+    if(ld.size()!=rd.size())
         return false;
 
-    const PVStructureArray::pointer ld=left->get(), rd=right->get();
+    PVStructureArray::const_svector::const_iterator lit, lend, rit;
 
-    for(size_t i=0, ilen=left->getLength(); i<ilen; i++)
+    for(lit=ld.begin(), lend=ld.end(), rit=rd.begin();
+        lit!=lend;
+        ++lit, ++rit)
     {
-        const PVFieldPtrArray& lf = ld[i]->getPVFields();
-        const PVFieldPtrArray& rf = rd[i]->getPVFields();
-
-        for(size_t k=0, klen=ls->getNumberFields(); k<klen; k++)
-        {
-            if(*lf[i]!=*rf[i])
-                return false;
-        }
+        if(**lit != **rit)
+            return false;
     }
     return true;
 }
diff --git a/testApp/pv/testOperators.cpp b/testApp/pv/testOperators.cpp
index 2a49424..cff09b6 100644
--- a/testApp/pv/testOperators.cpp
+++ b/testApp/pv/testOperators.cpp
@@ -77,14 +77,13 @@ int main(int, char**)
     StructureConstPtr structure = standardField->scalar(pvDouble, "alarm,timeStamp");
     pvStructure = standardPVField->structureArray(structure,"alarm,timeStamp");
     size_t num = 2;
-    PVStructurePtrArray pvStructures;
-    pvStructures.reserve(num);
+    PVStructureArray::svector pvStructures(num);
     for(size_t i=0; i<num; i++) {
-        pvStructures.push_back(
-            pvDataCreate->createPVStructure(structure));
+        pvStructures[i]=
+            pvDataCreate->createPVStructure(structure);
     }
     PVStructureArrayPtr pvStructureArray = pvStructure->getStructureArrayField("value");
-    pvStructureArray->put(0, num, pvStructures, 0);
+    pvStructureArray->replace(pvStructures);
     std::cout << *pvStructure << std::endl;
 
     return 0;
diff --git a/testApp/pv/testStandardPVField.cpp b/testApp/pv/testStandardPVField.cpp
index 7c19ccd..238ba82 100644
--- a/testApp/pv/testStandardPVField.cpp
+++ b/testApp/pv/testStandardPVField.cpp
@@ -70,14 +70,13 @@ int main(int, char **)
     StructureConstPtr structure = standardField->scalar(pvDouble, "alarm,timeStamp");
     pvStructure = standardPVField->structureArray(structure,"alarm,timeStamp");
     size_t num = 2;
-    PVStructurePtrArray pvStructures;
-    pvStructures.reserve(num);
+    PVStructureArray::svector pvStructures(num);
     for(size_t i=0; i<num; i++) {
-        pvStructures.push_back(
-            pvDataCreate->createPVStructure(structure));
+        pvStructures[i]=
+            pvDataCreate->createPVStructure(structure);
     }
     PVStructureArrayPtr pvStructureArray = pvStructure->getStructureArrayField("value");
-    pvStructureArray->put(0, num, pvStructures, 0);
+    pvStructureArray->replace(pvStructures);
     builder.clear();
     pvStructure->toString(&builder);
     print("structureArrayTest");