traits.hpp File Reference

#include "opencv2/core/cvdef.h"

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Classes
class	cv::DataDepth< _Tp >
	A helper class for cv::DataType. More...
class	cv::DataType< _Tp >
	Template "trait" class for OpenCV primitive data types. More...

Namespaces
namespace	cv
namespace	cv::traits

Macros
#define	CV_CREATE_MEMBER_CHECK(X)

Macro Definition Documentation

CV_CREATE_MEMBER_CHECK

#define CV_CREATE_MEMBER_CHECK

(

X

)

Value:

template<typename T> class CheckMember_##X { \
    struct Fallback { int X; }; \
    struct Derived : T, Fallback { }; \
    template<typename U, U> struct Check; \
    typedef char CV_NO[1]; \
    typedef char CV_YES[2]; \
    template<typename U> static CV_NO & func(Check<int Fallback::*, &U::X> *); \
    template<typename U> static CV_YES & func(...); \
public: \
    typedef CheckMember_##X type; \
    enum { value = sizeof(func<Derived>(0)) == sizeof(CV_YES) }; \
};