cvCloneSparseMat  502 modules/core/include/opencv2/core/core_c.h CVAPI(CvSparseMat*) cvCloneSparseMat( const CvSparseMat* mat );
cvCloneSparseMat 4799 modules/core/src/persistence.cpp                         icvWriteSparseMat, (CvCloneFunc)cvCloneSparseMat );