libMesh
pointer_to_pointer_iter.h
Go to the documentation of this file.
1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2017 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3 
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License, or (at your option) any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
13 
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 
18 
19 
20 #ifndef LIBMESH_PPITER_H
21 #define LIBMESH_PPITER_H
22 
23 
24 namespace libMesh
25 {
26 
35 template <typename T>
37 {
38 public:
39  PointerToPointerIter (T * const * it) : _it(it) {}
40 
41  T & operator* () const { return **_it; }
42 
44  {
45  ++_it;
46  return *this;
47  }
48 
50  {
51  PointerToPointerIter returnval(*this);
52  ++_it;
53  return returnval;
54  }
55 
56  bool operator== (const PointerToPointerIter & j) const
57  {
58  return ( _it == j._it );
59  }
60 
61  bool operator!= (const PointerToPointerIter & j) const
62  {
63  return !(*this == j);
64  }
65 
66 private:
67  T * const * _it;
68 };
69 
70 } // namespace libMesh
71 
72 #endif // LIBMESH_PPITER_H
const PointerToPointerIter & operator++()
bool operator==(const PointerToPointerIter &j) const
The libMesh namespace provides an interface to certain functionality in the library.
The PointerToPointerIter templated class is intended to wrap pointer-to-pointer iterators in an inter...
bool operator!=(const PointerToPointerIter &j) const