From: kgv <kgv@opencascade.com>
Date: Tue, 12 Mar 2019 08:14:15 +0000 (+0300)
Subject: math_Vector, math_IntegerVector - added move constructors.
X-Git-Url: http://git.dev.opencascade.org/gitweb/?a=commitdiff_plain;h=fca968d2fa64aff5650c2cadf8ebb11c74089567;p=occt-copy.git

math_Vector, math_IntegerVector - added move constructors.
---

diff --git a/src/NCollection/NCollection_LocalArray.hxx b/src/NCollection/NCollection_LocalArray.hxx
index 06050493f7..cadfe2817a 100644
--- a/src/NCollection/NCollection_LocalArray.hxx
+++ b/src/NCollection/NCollection_LocalArray.hxx
@@ -59,6 +59,32 @@ public:
     return myPtr;
   }
 
+  //! Move assignment.
+  //! This array will borrow all the data from theOther.
+  NCollection_LocalArray& Move (NCollection_LocalArray& theOther)
+  {
+    if (&theOther == this)
+    {
+      return *this;
+    }
+
+    Deallocate();
+    mySize = theOther.mySize;
+    if (theOther.myPtr == theOther.myBuffer)
+    {
+      // deep copy
+      myPtr = myBuffer;
+      memcpy (myPtr, theOther.myPtr, sizeof(theItem) * theOther.mySize);
+      memset (theOther.myPtr,     0, sizeof(theItem) * theOther.mySize);
+    }
+    else
+    {
+      myPtr = theOther.myPtr;
+      theOther.myPtr = theOther.myBuffer;
+    }
+    return *this;
+  }
+
 private:
 
   NCollection_LocalArray (const NCollection_LocalArray& );
diff --git a/src/math/math_IntegerVector.hxx b/src/math/math_IntegerVector.hxx
index 5241fc1820..40e1e0e370 100644
--- a/src/math/math_IntegerVector.hxx
+++ b/src/math/math_IntegerVector.hxx
@@ -256,6 +256,37 @@ public:
     return theO;
   }
 
+#ifndef OCCT_NO_RVALUE_REFERENCE
+  //! Move constructor
+  math_IntegerVector (math_IntegerVector&& theOther)
+  {
+    Move (theOther);
+  }
+
+  //! Move assignment operator; @sa Move()
+  math_IntegerVector& operator= (math_IntegerVector&& theOther)
+  {
+    return Move (theOther);
+  }
+#endif
+
+  //! Move assignment.
+  //! This array will borrow all the data from theOther, so that theOther should not be used anymore.
+  math_IntegerVector& Move (math_IntegerVector& theOther)
+  {
+    if (&theOther == this)
+    {
+      return *this;
+    }
+
+    myLocArray.Move (theOther.myLocArray);
+    NCollection_Array1<Standard_Integer> aNewArray (myLocArray[0], theOther.Array.Lower(), theOther.Array.Upper());
+    Array.Move (aNewArray);
+    NCollection_Array1<Standard_Integer> anEmptyArray;
+    theOther.Array.Move (anEmptyArray);
+    return *this;
+  }
+
 protected:
 
   //! is used internally to set the Lower value of the IntegerVector.
diff --git a/src/math/math_Vector.hxx b/src/math/math_Vector.hxx
index 308d889880..91c666ed6b 100644
--- a/src/math/math_Vector.hxx
+++ b/src/math/math_Vector.hxx
@@ -331,6 +331,37 @@ public:
 
   friend class math_Matrix;
 
+#ifndef OCCT_NO_RVALUE_REFERENCE
+  //! Move constructor
+  math_Vector (math_Vector&& theOther)
+  {
+    Move (theOther);
+  }
+
+  //! Move assignment operator; @sa Move()
+  math_Vector& operator= (math_Vector&& theOther)
+  {
+    return Move (theOther);
+  }
+#endif
+
+  //! Move assignment.
+  //! This array will borrow all the data from theOther, so that theOther should not be used anymore.
+  math_Vector& Move (math_Vector& theOther)
+  {
+    if (&theOther == this)
+    {
+      return *this;
+    }
+
+    myLocArray.Move (theOther.myLocArray);
+    NCollection_Array1<Standard_Real> aNewArray (myLocArray[0], theOther.Array.Lower(), theOther.Array.Upper());
+    Array.Move (aNewArray);
+    NCollection_Array1<Standard_Real> anEmptyArray;
+    theOther.Array.Move (anEmptyArray);
+    return *this;
+  }
+
 protected:
 
   //! Is used internally to set the "theLower" value of the vector.