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