What's the meaning of these two keywords?
An example:
struct CV_EXPORTS_W HOGDescriptor { public: enum { L2Hys=0 }; enum { DEFAULT_NLEVELS=64 };
CV_WRAP HOGDescriptor() : winSize(64,128), blockSize(16,16), blockStride(8,8),
cellSize(8,8), nbins(9), derivAperture(1), winSigma(-1),
histogramNormType(HOGDescriptor::L2Hys), L2HysThreshold(0.2), gammaCorrection(true),
nlevels(HOGDescriptor::DEFAULT_NLEVELS)
{}
CV_EXPORTS_W is defined in modules/core/include/opencv2/core/types_c.h as alias for CV_EXPORTS, CV_EXPORTS is defined as:
#if (defined WIN32 || defined _WIN32 || defined WINCE) && defined CVAPI_EXPORTS
# define CV_EXPORTS __declspec(dllexport)
#else
# define CV_EXPORTS
#endif
So it's alias for __declspec(dllexport) on Windows platform where CVAPI_EXPORTS is defined, otherwise it's empty.
CV_WARP is used as flag for scripts to create wrappers of the function or method. It is used for creation Python or Java wrappers.
Asked: 2013-01-26 14:08:48 -0600
Seen: 7,750 times
Last updated: Jan 26 '13