added copy constructors

src/lagrangian/basic/indexedParticle/indexedParticle.H

@@ -87,6 +87,12 @@ public:
             Particle<indexedParticle>(c, is)
         {}
 
+        //- Construct as a copy
+        indexedParticle(const indexedParticle& p)
+        :
+            Particle<indexedParticle>(p)
+        {}
+
         //- Construct and return a clone
         autoPtr<indexedParticle> clone() const
         {

src/lagrangian/basic/passiveParticle/passiveParticle.H

@@ -81,6 +81,12 @@ public:
             Particle<passiveParticle>(c, is)
         {}
 
+        //- Construct as copy
+        passiveParticle(const passiveParticle& p)
+        :
+            Particle<passiveParticle>(p)
+        {}
+
         //- Construct and return a clone
         autoPtr<passiveParticle> clone() const
         {