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clear.hh
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1 //------------------------------------------------------------------------------
2 // This file is part of the OpenStructure project <www.openstructure.org>
3 //
4 // Copyright (C) 2008-2011 by the OpenStructure authors
5 // Copyright (C) 2003-2010 by the IPLT authors
6 //
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License as published by the Free
9 // Software Foundation; either version 3.0 of the License, or (at your option)
10 // any later version.
11 // This library is distributed in the hope that it will be useful, but WITHOUT
12 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
14 // details.
15 //
16 // You should have received a copy of the GNU Lesser General Public License
17 // along with this library; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 //------------------------------------------------------------------------------
20 
21 #ifndef IMG_ALG_CLEAR_HH
22 #define IMG_ALG_CLEAR_HH
23 
24 #include <ost/img/image.hh>
25 #include <ost/img/image_state.hh>
27 
28 namespace ost { namespace img { namespace alg {
29 
30 namespace {
31 
32 struct ClearFnc {
33  ClearFnc() {}
34  template <typename T, class D>
35  void VisitState(ImageStateImpl<T,D>& isi) const {
36  static const T zero=T(); // default ctor for zero value
37  for(T* p = isi.Data().GetData(); p<isi.Data().GetEnd();++p) {
38  (*p)=zero;
39  }
40  }
41 
42  static String GetAlgorithmName() {return "Clear";}
43 };
44 
45 } // anon ns
46 
47 typedef ImageStateConstModIPAlgorithm<ClearFnc> Clear;
48 
49 }
50 
51 // completely inlined definition does not need template instantiation
52 
53  }} // ns
54 
55 
56 
57 #endif