Reference documentation for deal.II version Git e3a3ec7800 2020-08-07 14:08:19 +0200
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cmath.h
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1 // ---------------------------------------------------------------------
2 //
3 // Copyright (C) 2018 - 2019 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
10 // version 2.1 of the License, or (at your option) any later version.
11 // The full text of the license can be found in the file LICENSE.md at
12 // the top level directory of deal.II.
13 //
14 // ---------------------------------------------------------------------
15 #ifndef dealii_cxx17_cmath_h
16 #define dealii_cxx17_cmath_h
17 
18 #include <deal.II/base/config.h>
19 
20 #ifdef DEAL_II_HAVE_CXX17_BESSEL_FUNCTIONS
21 # include <cmath>
22 #else
23 # include <boost/math/special_functions/bessel.hpp>
24 #endif
25 
26 
28 namespace std_cxx17
29 {
30 #ifndef DEAL_II_HAVE_CXX17_BESSEL_FUNCTIONS
32  double) = boost::math::cyl_bessel_j<double, double>;
33  float (&cyl_bessel_jf)(float,
34  float) = boost::math::cyl_bessel_j<float, float>;
35  long double (&cyl_bessel_jl)(long double, long double) =
36  boost::math::cyl_bessel_j<long double, long double>;
37 #else
38  using std::cyl_bessel_j;
39  using std::cyl_bessel_jf;
40  using std::cyl_bessel_jl;
41 #endif
42 } // namespace std_cxx17
44 
45 #endif // dealii_cxx17_cmath_h
long double(&) cyl_bessel_jl(long double, long double)
Definition: cmath.h:35
#define DEAL_II_NAMESPACE_CLOSE
Definition: config.h:363
#define DEAL_II_NAMESPACE_OPEN
Definition: config.h:362
double(&) cyl_bessel_j(double, double)
Definition: cmath.h:31
Definition: c++.h:153
float(&) cyl_bessel_jf(float, float)
Definition: cmath.h:33