CV_SPARSE_MAT_MAGIC_VAL  703 modules/core/include/opencv2/core/types_c.h     (((const CvSparseMat*)(mat))->type & CV_MAGIC_MASK) == CV_SPARSE_MAT_MAGIC_VAL)
CV_SPARSE_MAT_MAGIC_VAL  561 modules/core/src/array.cpp     arr->type = CV_SPARSE_MAT_MAGIC_VAL | type;