lapack_int LAPACKE_dlacn2_work(lapack_int n, double *v, double *x, lapack_int *isgn, double *est, lapack_int *kase, lapack_int *isave)
void LAPACK_dlacn2(lapack_int *n, double *v, double *x, lapack_int *isgn, double *est, lapack_int *kase, lapack_int *isave)