limits.hpp

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00042 
00043 #ifndef __OPENCV_CUDA_LIMITS_HPP__
00044 #define __OPENCV_CUDA_LIMITS_HPP__
00045 
00046 #include <limits.h>
00047 #include <float.h>
00048 #include "common.hpp "
00049 
00050 /** @file
00051  * @deprecated Use @ref cudev instead.
00052  */
00053 
00054 //! @cond IGNORED
00055 
00056 namespace cv { namespace cuda { namespace device
00057 {
00058 template <class T> struct numeric_limits;
00059 
00060 template <> struct numeric_limits<bool>
00061 {
00062     __device__ __forceinline__ static bool min() { return false; }
00063     __device__ __forceinline__ static bool max() { return true;  }
00064     static const bool is_signed = false;
00065 };
00066 
00067 template <> struct numeric_limits<signed char>
00068 {
00069     __device__ __forceinline__ static signed char min() { return SCHAR_MIN; }
00070     __device__ __forceinline__ static signed char max() { return SCHAR_MAX; }
00071     static const bool is_signed = true;
00072 };
00073 
00074 template <> struct numeric_limits<unsigned char>
00075 {
00076     __device__ __forceinline__ static unsigned char min() { return 0; }
00077     __device__ __forceinline__ static unsigned char max() { return UCHAR_MAX; }
00078     static const bool is_signed = false;
00079 };
00080 
00081 template <> struct numeric_limits<short>
00082 {
00083     __device__ __forceinline__ static short min() { return SHRT_MIN; }
00084     __device__ __forceinline__ static short max() { return SHRT_MAX; }
00085     static const bool is_signed = true;
00086 };
00087 
00088 template <> struct numeric_limits<unsigned short>
00089 {
00090     __device__ __forceinline__ static unsigned short min() { return 0; }
00091     __device__ __forceinline__ static unsigned short max() { return USHRT_MAX; }
00092     static const bool is_signed = false;
00093 };
00094 
00095 template <> struct numeric_limits<int>
00096 {
00097     __device__ __forceinline__ static int min() { return INT_MIN; }
00098     __device__ __forceinline__ static int max() { return INT_MAX; }
00099     static const bool is_signed = true;
00100 };
00101 
00102 template <> struct numeric_limits<unsigned int>
00103 {
00104     __device__ __forceinline__ static unsigned int min() { return 0; }
00105     __device__ __forceinline__ static unsigned int max() { return UINT_MAX; }
00106     static const bool is_signed = false;
00107 };
00108 
00109 template <> struct numeric_limits<float>
00110 {
00111     __device__ __forceinline__ static float min() { return FLT_MIN; }
00112     __device__ __forceinline__ static float max() { return FLT_MAX; }
00113     __device__ __forceinline__ static float epsilon() { return FLT_EPSILON; }
00114     static const bool is_signed = true;
00115 };
00116 
00117 template <> struct numeric_limits<double>
00118 {
00119     __device__ __forceinline__ static double min() { return DBL_MIN; }
00120     __device__ __forceinline__ static double max() { return DBL_MAX; }
00121     __device__ __forceinline__ static double epsilon() { return DBL_EPSILON; }
00122     static const bool is_signed = true;
00123 };
00124 }}} // namespace cv { namespace cuda { namespace cudev {
00125 
00126 //! @endcond
00127 
00128 #endif // __OPENCV_CUDA_LIMITS_HPP__
00129