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limits.hpp
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42
43#ifndef OPENCV_CUDA_LIMITS_HPP
44#define OPENCV_CUDA_LIMITS_HPP
45
46#include <limits.h>
47#include <float.h>
48#include "common.hpp"
49
55
56namespace cv { namespace cuda { namespace device
57{
58template <class T> struct numeric_limits;
59
60template <> struct numeric_limits<bool>
61{
62 __device__ __forceinline__ static bool min() { return false; }
63 __device__ __forceinline__ static bool max() { return true; }
64 static const bool is_signed = false;
65};
66
67template <> struct numeric_limits<signed char>
68{
69 __device__ __forceinline__ static signed char min() { return SCHAR_MIN; }
70 __device__ __forceinline__ static signed char max() { return SCHAR_MAX; }
71 static const bool is_signed = true;
72};
73
74template <> struct numeric_limits<unsigned char>
75{
76 __device__ __forceinline__ static unsigned char min() { return 0; }
77 __device__ __forceinline__ static unsigned char max() { return UCHAR_MAX; }
78 static const bool is_signed = false;
79};
80
81template <> struct numeric_limits<short>
82{
83 __device__ __forceinline__ static short min() { return SHRT_MIN; }
84 __device__ __forceinline__ static short max() { return SHRT_MAX; }
85 static const bool is_signed = true;
86};
87
88template <> struct numeric_limits<unsigned short>
89{
90 __device__ __forceinline__ static unsigned short min() { return 0; }
91 __device__ __forceinline__ static unsigned short max() { return USHRT_MAX; }
92 static const bool is_signed = false;
93};
94
95template <> struct numeric_limits<int>
96{
97 __device__ __forceinline__ static int min() { return INT_MIN; }
98 __device__ __forceinline__ static int max() { return INT_MAX; }
99 static const bool is_signed = true;
100};
101
102template <> struct numeric_limits<unsigned int>
103{
104 __device__ __forceinline__ static unsigned int min() { return 0; }
105 __device__ __forceinline__ static unsigned int max() { return UINT_MAX; }
106 static const bool is_signed = false;
107};
108
109template <> struct numeric_limits<float>
110{
111 __device__ __forceinline__ static float min() { return FLT_MIN; }
112 __device__ __forceinline__ static float max() { return FLT_MAX; }
113 __device__ __forceinline__ static float epsilon() { return FLT_EPSILON; }
114 static const bool is_signed = true;
115};
116
117template <> struct numeric_limits<double>
118{
119 __device__ __forceinline__ static double min() { return DBL_MIN; }
120 __device__ __forceinline__ static double max() { return DBL_MAX; }
121 __device__ __forceinline__ static double epsilon() { return DBL_EPSILON; }
122 static const bool is_signed = true;
123};
124}}} // namespace cv { namespace cuda { namespace cudev {
125
127
128#endif // OPENCV_CUDA_LIMITS_HPP
std::max
T max(T... args)
std::min
T min(T... args)
cv
"black box" representation of the file storage associated with a file on disk.
Definition calib3d.hpp:441