("Copy a %dx%d submatrix from %dx%d(of %dx%d) to %dx%d (of %dx%d)",
lsize, rsize, lpos_src, rpos_src, src->lines, src->rows, lpos_dst,
rpos_dst, dst->lines, dst->rows);
("Copy a %dx%d submatrix from %dx%d(of %dx%d) to %dx%d (of %dx%d)",
lsize, rsize, lpos_src, rpos_src, src->lines, src->rows, lpos_dst,
rpos_dst, dst->lines, dst->rows);