Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2009-2015:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Sebastian Reiter
       4              :  * 
       5              :  * This file is part of UG4.
       6              :  * 
       7              :  * UG4 is free software: you can redistribute it and/or modify it under the
       8              :  * terms of the GNU Lesser General Public License version 3 (as published by the
       9              :  * Free Software Foundation) with the following additional attribution
      10              :  * requirements (according to LGPL/GPL v3 §7):
      11              :  * 
      12              :  * (1) The following notice must be displayed in the Appropriate Legal Notices
      13              :  * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
      14              :  * 
      15              :  * (2) The following notice must be displayed at a prominent place in the
      16              :  * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
      17              :  * 
      18              :  * (3) The following bibliography is recommended for citation and must be
      19              :  * preserved in all covered files:
      20              :  * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
      21              :  *   parallel geometric multigrid solver on hierarchically distributed grids.
      22              :  *   Computing and visualization in science 16, 4 (2013), 151-164"
      23              :  * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
      24              :  *   flexible software system for simulating pde based models on high performance
      25              :  *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
      26              :  * 
      27              :  * This program is distributed in the hope that it will be useful,
      28              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      29              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      30              :  * GNU Lesser General Public License for more details.
      31              :  */
      32              : 
      33              : #ifndef __H__UNIQUE_IDENTITY__
      34              : #define __H__UNIQUE_IDENTITY__
      35              : 
      36              : namespace ug
      37              : {
      38              : 
      39              : /// \addtogroup ugbase_common_util
      40              : /// \{
      41              : 
      42              : ////////////////////////////////////////////////////////////////////////////////////////////////
      43              : //      UID
      44              : ///     supplies a unique ID.
      45              : /**
      46              :  * Derivatives of this class can be identified by their unique ID.
      47              :  * Useful for hashing and other applications, where the need for identification is given.
      48              :  */
      49            7 : class UID
      50              : {
      51              :         public:
      52              :                 UID()
      53           16 :                         {
      54              :                                 static unsigned int ID = 1;
      55           16 :                                 m_uID = ID;
      56            6 :                                 ID++;
      57              :                         }
      58              : 
      59            0 :                 UID(const UID& uid)                                 {m_uID = uid.id();}
      60           61 :                 inline unsigned int id() const          {return m_uID;}
      61              : 
      62              :                 inline bool operator == (const UID& uid)
      63              :                         {
      64            0 :                                 if(uid.id() == this->id())
      65              :                                         return true;
      66              :                                 return false;
      67              :                         }
      68              : 
      69              :                 virtual ~UID() {};
      70              : 
      71              :         private:
      72              :                 unsigned int m_uID;
      73              : };
      74              : 
      75              : // end group ugbase_common_util
      76              : /// \}
      77              : 
      78              : }
      79              : #endif
      80              :