Reference documentation for deal.II version 9.0.0
bind.h
1 // ---------------------------------------------------------------------
2 //
3 // Copyright (C) 2009 - 2014 by the deal.II authors
4 //
5 // This file is part of the deal.II library.
6 //
7 // The deal.II library is free software; you can use it, redistribute
8 // it, and/or modify it under the terms of the GNU Lesser General
9 // Public License as published by the Free Software Foundation; either
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11 // The full text of the license can be found in the file LICENSE at
12 // the top level of the deal.II distribution.
13 //
14 // ---------------------------------------------------------------------
15 
16 #ifndef dealii_std_cxx11_bind_h
17 #define dealii_std_cxx11_bind_h
18 
19 
20 #include <deal.II/base/config.h>
21 
22 
23 # include <functional>
24 
25 DEAL_II_NAMESPACE_OPEN
26 // In boost, the placeholders _1, _2, ... are in the global namespace. In
27 // C++11, they are in namespace std::placeholders, which makes them awkward to
28 // use. Import them into the ::std_cxx11 namespace instead and do the
29 // same below if we use boost instead. Namespace 'placeholders' is also defined
30 // in ::std_cxx11 namespace to make code C++ standard compatible.
31 // That is to say, if std::something works with C++11 standard,
32 // then ::std_cxx11::something should also work.
33 namespace std_cxx11
34 {
35  using namespace std::placeholders;
36  using std::bind;
37  using std::ref;
38  using std::cref;
39  using std::reference_wrapper;
40 
41  namespace placeholders = std::placeholders;
42 }
43 DEAL_II_NAMESPACE_CLOSE
44 
45 
46 // then allow using the old namespace name instead of the new one
47 DEAL_II_NAMESPACE_OPEN
48 namespace std_cxx1x = std_cxx11;
49 DEAL_II_NAMESPACE_CLOSE
50 
51 #endif