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NumLimitsT.hh
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43
48 //=============================================================================
49 //
50 // CLASS NumLimitsT
51 //
52 //=============================================================================
53
54 #ifndef OPENMESH_UTILS_NUMLIMITS_HH
55 #define OPENMESH_UTILS_NUMLIMITS_HH
56
57
58 //== INCLUDES =================================================================
59
60 #include "Config.hh"
61 #include <limits.h>
62 #include <float.h>
63
64
65 //== NAMESPEACES ==============================================================
66
67 namespace OpenMesh { // BEGIN_NS_OPENMESH
68 namespace Utils { // BEGIN_NS_UTILS
69
70
71 //== CLASS DEFINITION =========================================================
72
73
90 template <typename Scalar>
91 class NumLimitsT
92 {
93 public:
95 static inline Scalar min() { return 0; }
97 static inline Scalar max() { return 0; }
98
99 static inline bool is_float() { return false; }
100 static inline bool is_integer() { return !NumLimitsT<Scalar>::is_float(); }
101 static inline bool is_signed() { return true; }
102 };
103
104 // is_float
105
106 template<>
107 inline bool NumLimitsT<float>::is_float() { return true; }
108
109 template<>
110 inline bool NumLimitsT<double>::is_float() { return true; }
111
112 template<>
113 inline bool NumLimitsT<long double>::is_float() { return true; }
114
115 // is_signed
116
117 template<>
118 inline bool NumLimitsT<unsigned char>::is_signed() { return false; }
119
120 template<>
121 inline bool NumLimitsT<unsigned short>::is_signed() { return false; }
122
123 template<>
124 inline bool NumLimitsT<unsigned int>::is_signed() { return false; }
125
126 template<>
127 inline bool NumLimitsT<unsigned long>::is_signed() { return false; }
128
129 template<>
130 inline bool NumLimitsT<unsigned long long>::is_signed() { return false; }
131
132 // min/max
133 template<> inline int NumLimitsT<int>::min() { return INT_MIN; }
134 template<> inline int NumLimitsT<int>::max() { return INT_MAX; }
135
136 template<> inline float NumLimitsT<float>::min() { return FLT_MIN; }
137 template<> inline float NumLimitsT<float>::max() { return FLT_MAX; }
138
139 template<> inline double NumLimitsT<double>::min() { return DBL_MIN; }
140 template<> inline double NumLimitsT<double>::max() { return DBL_MAX; }
141
142
143 //=============================================================================
144 } // END_NS_UTILS
145 } // END_NS_OPENMESH
146 //=============================================================================
147 #endif // OPENMESH_NUMLIMITS_HH defined
148 //=============================================================================
149
OpenMesh::Utils::NumLimitsT::max
static Scalar max()
Return the maximum absolte value a scalar type can store.
Definition: NumLimitsT.hh:97
OpenMesh::Utils::NumLimitsT
This class provides the maximum and minimum values a certain scalar type (int, float, or double) can store.
Definition: NumLimitsT.hh:91
Config.hh
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::Utils::NumLimitsT::min
static Scalar min()
Return the smallest absolte value a scalar type can store.
Definition: NumLimitsT.hh:95