pub unsafe extern fn dsbtrd_(vect: *const c_char,
uplo: *const c_char,
n: *const lapack_int,
kd: *const lapack_int,
ab: *mut c_double,
ldab: *const lapack_int,
d: *mut c_double,
e: *mut c_double,
q: *mut c_double,
ldq: *const lapack_int,
work: *mut c_double,
info: *mut lapack_int)