Compare cell pointer and not the index

Author: vincent-noel

core/PhysiCell_cell.cpp

@@ -3485,8 +3485,9 @@ void Cell::remove_self_from_attackers( void )
 	#pragma omp parallel for
 	for (int j=0; j < all_cells->size(); j++) 
 	{
-		if (j != index && (*all_cells)[j]->phenotype.cell_interactions.pAttackTarget == this) {
-			(*all_cells)[j]->phenotype.cell_interactions.pAttackTarget = NULL;
+		Cell* pC = (*all_cells)[j];
+		if (( pC != this) && pC->phenotype.cell_interactions.pAttackTarget == this) {
+			pC->phenotype.cell_interactions.pAttackTarget = NULL;
 		}
 	}
 }