pub unsafe extern fn chbevx_(jobz: *const c_char,
range: *const c_char,
uplo: *const c_char,
n: *const lapack_int,
kd: *const lapack_int,
ab: *mut lapack_complex_float,
ldab: *const lapack_int,
q: *mut lapack_complex_float,
ldq: *const lapack_int,
vl: *const c_float,
vu: *const c_float,
il: *const lapack_int,
iu: *const lapack_int,
abstol: *const c_float,
m: *mut lapack_int,
w: *mut c_float,
z: *mut lapack_complex_float,
ldz: *const lapack_int,
work: *mut lapack_complex_float,
rwork: *mut c_float,
iwork: *mut lapack_int,
ifail: *mut lapack_int,
info: *mut lapack_int)