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rounding.hpp
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37 
38 namespace Gecode { namespace Float {
39 
42  RoundingBase::init();
43  }
46 
49  return RoundingBase::median(x,y);
50  }
51 
52 #define GECODE_ROUND_OP(name) \
53  forceinline FloatNum \
54  Rounding::name##_down(FloatNum x, FloatNum y) { \
55  return RoundingBase::name##_down(x,y); \
56  } \
57  forceinline FloatNum \
58  Rounding::name##_up(FloatNum x, FloatNum y) { \
59  return RoundingBase::name##_up(x,y); \
60  }
61 
62  GECODE_ROUND_OP(add)
63  GECODE_ROUND_OP(sub)
64  GECODE_ROUND_OP(mul)
66 
67 #undef GECODE_ROUND_OP
68 
69 #define GECODE_ROUND_FUN(name) \
70  forceinline FloatNum \
71  Rounding::name##_down(FloatNum x) { \
72  return RoundingBase::name##_down(x); \
73  } \
74  forceinline FloatNum \
75  Rounding::name##_up(FloatNum x) { \
76  return RoundingBase::name##_up(x); \
77  }
78 
80 
81 #if defined(_M_X64) || defined(_M_IA64)
82 
83  // Workaround as MSVC on x64 does not have a rint function
86  return floor(x);
87  }
90  return ceil(x);
91  }
92 
93 #else
94 
95  GECODE_ROUND_FUN(int)
96 
97 #endif
98 
99 #undef GECODE_ROUND_FUN
100 
101 }}
102 
103 // STATISTICS: float-var
104 
FloatNum int_down(FloatNum x)
Return next downward-rounded integer of x (domain: )
#define GECODE_ROUND_FUN(name)
Definition: rounding.hpp:69
#define GECODE_ROUND_OP(name)
Definition: rounding.hpp:52
FloatNum int_up(FloatNum x)
Return next upward-rounded integer of x (domain: )
void sqrt(Home home, FloatVar x0, FloatVar x1)
Post propagator for .
Definition: arithmetic.cpp:106
Post propagator for SetVar SetOpType SetVar y
Definition: set.hh:784
void div(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition: arithmetic.cpp:131
Rounding(void)
Default constructor (configures full rounding mode)
Definition: rounding.hpp:41
#define forceinline
Definition: config.hpp:173
Post propagator for SetVar x
Definition: set.hh:784
Gecode toplevel namespace
double FloatNum
Floating point number base type.
Definition: float.hh:110
~Rounding(void)
Destructor (restores previous rounding mode)
Definition: rounding.hpp:45
FloatNum median(FloatNum x, FloatNum y)
Return median of x and y (domain: )
Definition: rounding.hpp:48