Dune Core Modules (2.7.0)

precision.hh
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1 // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi: set et ts=4 sw=2 sts=2:
3 #ifndef DUNE_PRECISION_HH
4 #define DUNE_PRECISION_HH
5 
10 #include <stdlib.h>
11 
12 namespace Dune {
13 
22  template <class ctype = double>
24  public:
26  static ctype absolute_limit ()
27  {
28  return _absolute;
29  }
30 
32  static void set_absolute_limit (ctype absthres)
33  {
34  _absolute = absthres;
35  }
36 
37  private:
38  // just to demonstrate some state information
39  static ctype _absolute;
40  };
41 
42  template <class ctype>
43  ctype FMatrixPrecision<ctype>::_absolute = 1E-80;
44 
47 } // end namespace
48 
49 #endif
Precisions for calculations with FieldMatrix and FieldVector.
Definition: precision.hh:23
static ctype absolute_limit()
return threshold to declare matrix singular
Definition: precision.hh:26
static void set_absolute_limit(ctype absthres)
set singular threshold
Definition: precision.hh:32
Dune namespace.
Definition: alignedallocator.hh:14
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