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transcendental.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  * Vincent Barichard <Vincent.Barichard@univ-angers.fr>
6  *
7  * Copyright:
8  * Christian Schulte, 2002
9  * Vincent Barichard, 2012
10  *
11  * This file is part of Gecode, the generic constraint
12  * development environment:
13  * http://www.gecode.org
14  *
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35 
36 #include <gecode/float.hh>
37 
38 #ifdef GECODE_HAS_MPFR
39 
41 
42 namespace Gecode {
43 
44  void
45  exp(Home home, FloatVar x0, FloatVar x1) {
46  using namespace Float;
48  GECODE_ES_FAIL((Transcendental::Exp<FloatView,FloatView>
49  ::post(home,x0,x1)));
50  }
51 
52  void
53  log(Home home, FloatVar x0, FloatVar x1) {
54  using namespace Float;
56  GECODE_ES_FAIL((Transcendental::Exp<FloatView,FloatView>
57  ::post(home,x1,x0)));
58  }
59 
60  void
62  using namespace Float;
64  GECODE_ES_FAIL((Transcendental::Pow<FloatView,FloatView>
65  ::post(home,base,x1,x0)));
66  }
67 
68  void
70  using namespace Float;
72  GECODE_ES_FAIL((Transcendental::Pow<FloatView,FloatView>
73  ::post(home,base,x0,x1)));
74  }
75 
76 }
77 
78 #endif
79 
80 // STATISTICS: float-post
Float variables.
Definition: float.hh:870
Home class for posting propagators
Definition: core.hpp:856
void pow(Home home, FloatVar x0, int n, FloatVar x1)
Post propagator for for $n\geq 0$.
Definition: arithmetic.cpp:109
void log(Home home, FloatVar x0, FloatVar x1)
Post propagator for .
void exp(Home home, FloatVar x0, FloatVar x1)
Post propagator for .
void post(Home home, Term *t, int n, FloatRelType frt, FloatVal c)
Post propagator for linear constraint over floats.
Definition: post.cpp:238
#define GECODE_POST
Check for failure in a constraint post function.
Definition: macros.hpp:40
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition: macros.hpp:103
double FloatNum
Floating point number base type.
Definition: float.hh:106
const double base
Base for geometric restart sequence.
Definition: search.hh:126