pub unsafe extern fn dggrqf_(m: *const lapack_int,
p: *const lapack_int,
n: *const lapack_int,
a: *mut c_double,
lda: *const lapack_int,
taua: *mut c_double,
b: *mut c_double,
ldb: *const lapack_int,
taub: *mut c_double,
work: *mut c_double,
lwork: *const lapack_int,
info: *mut lapack_int)