Avoid some array copying in add and subtract ArrayFieldVector.

JIRA: MATH-573

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1101579 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math/linear/ArrayFieldVector.java

@@ -383,7 +383,7 @@ public class ArrayFieldVector<T extends FieldElement<T>> implements FieldVector<
             for (int i = 0; i < data.length; i++) {
                 out[i] = data[i].add(v.getEntry(i));
             }
-            return new ArrayFieldVector<T>(out);
+            return new ArrayFieldVector<T>(field, out, false);
         }
     }
 
@@ -394,7 +394,7 @@ public class ArrayFieldVector<T extends FieldElement<T>> implements FieldVector<
         for (int i = 0; i < data.length; i++) {
             out[i] = data[i].add(v[i]);
         }
-        return new ArrayFieldVector<T>(out);
+        return new ArrayFieldVector<T>(field, out, false);
     }
 
     /**
@@ -417,7 +417,7 @@ public class ArrayFieldVector<T extends FieldElement<T>> implements FieldVector<
             for (int i = 0; i < data.length; i++) {
                 out[i] = data[i].subtract(v.getEntry(i));
             }
-            return new ArrayFieldVector<T>(out);
+            return new ArrayFieldVector<T>(field, out, false);
         }
     }
 
@@ -428,7 +428,7 @@ public class ArrayFieldVector<T extends FieldElement<T>> implements FieldVector<
         for (int i = 0; i < data.length; i++) {
             out[i] = data[i].subtract(v[i]);
         }
-        return new ArrayFieldVector<T>(out);
+        return new ArrayFieldVector<T>(field, out, false);
     }
 
     /**

src/site/xdoc/changes.xml

@@ -52,6 +52,9 @@ The <action> type attribute can be add,update,fix,remove.
     If the output is not quite correct, check for invisible trailing spaces!
      -->
     <release version="3.0" date="TBD" description="TBD">
+      <action dev="luc" type="fix" issue="MATH-573">
+        Avoid some array copying in add and subtract ArrayFieldVector.
+      </action>
       <action dev="luc" type="fix" issue="MATH-572">
         Fixed an unused constructor parameter in ArrayFieldVector.
       </action>