CV_MATND_MAGIC_VAL  658 modules/core/include/opencv2/core/types_c.h     ((mat) != NULL && (((const CvMatND*)(mat))->type & CV_MAGIC_MASK) == CV_MATND_MAGIC_VAL)
CV_MATND_MAGIC_VAL  260 modules/core/src/array.cpp     mat->type = CV_MATND_MAGIC_VAL | (step <= INT_MAX ? CV_MAT_CONT_FLAG : 0) | type;