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NumLimitsT.hh
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42 /*===========================================================================*\
43 * *
44 * $Revision: 1258 $ *
45 * $Date: 2015-04-28 15:07:46 +0200 (Di, 28 Apr 2015) $ *
46 * *
47 \*===========================================================================*/
48
53 //=============================================================================
54 //
55 // CLASS NumLimitsT
56 //
57 //=============================================================================
58
59 #ifndef OPENMESH_UTILS_NUMLIMITS_HH
60 #define OPENMESH_UTILS_NUMLIMITS_HH
61
62
63 //== INCLUDES =================================================================
64
65 #include "Config.hh"
66 #include <limits.h>
67 #include <float.h>
68
69
70 //== NAMESPEACES ==============================================================
71
72 namespace OpenMesh { // BEGIN_NS_OPENMESH
73 namespace Utils { // BEGIN_NS_UTILS
74
75
76 //== CLASS DEFINITION =========================================================
77
78
95 template <typename Scalar>
96 class NumLimitsT
97 {
98 public:
100 static inline Scalar min() { return 0; }
102 static inline Scalar max() { return 0; }
103
104 static inline bool is_float() { return false; }
105 static inline bool is_integer() { return !NumLimitsT<Scalar>::is_float(); }
106 static inline bool is_signed() { return true; }
107 };
108
109 // is_float
110
111 template<>
112 inline bool NumLimitsT<float>::is_float() { return true; }
113
114 template<>
115 inline bool NumLimitsT<double>::is_float() { return true; }
116
117 template<>
118 inline bool NumLimitsT<long double>::is_float() { return true; }
119
120 // is_signed
121
122 template<>
123 inline bool NumLimitsT<unsigned char>::is_signed() { return false; }
124
125 template<>
126 inline bool NumLimitsT<unsigned short>::is_signed() { return false; }
127
128 template<>
129 inline bool NumLimitsT<unsigned int>::is_signed() { return false; }
130
131 template<>
132 inline bool NumLimitsT<unsigned long>::is_signed() { return false; }
133
134 template<>
135 inline bool NumLimitsT<unsigned long long>::is_signed() { return false; }
136
137 // min/max
138 template<> inline int NumLimitsT<int>::min() { return INT_MIN; }
139 template<> inline int NumLimitsT<int>::max() { return INT_MAX; }
140
141 template<> inline float NumLimitsT<float>::min() { return FLT_MIN; }
142 template<> inline float NumLimitsT<float>::max() { return FLT_MAX; }
143
144 template<> inline double NumLimitsT<double>::min() { return DBL_MIN; }
145 template<> inline double NumLimitsT<double>::max() { return DBL_MAX; }
146
147
148 //=============================================================================
149 } // END_NS_UTILS
150 } // END_NS_OPENMESH
151 //=============================================================================
152 #endif // OPENMESH_NUMLIMITS_HH defined
153 //=============================================================================
154
Config.hh
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::Utils::NumLimitsT::min
static Scalar min()
Return the smallest absolte value a scalar type can store.
Definition: NumLimitsT.hh:100
OpenMesh::Utils::NumLimitsT
This class provides the maximum and minimum values a certain scalar type (int, float, or double) can store.
Definition: NumLimitsT.hh:96
OpenMesh::Utils::NumLimitsT::max
static Scalar max()
Return the maximum absolte value a scalar type can store.
Definition: NumLimitsT.hh:102