pub unsafe extern fn cstegr_(__jobz: *mut c_char, __range: *mut c_char, __n: *mut __CLPK_integer, __d__: *mut __CLPK_real, __e: *mut __CLPK_real, __vl: *mut __CLPK_real, __vu: *mut __CLPK_real, __il: *mut __CLPK_integer, __iu: *mut __CLPK_integer, __abstol: *mut __CLPK_real, __m: *mut __CLPK_integer, __w: *mut __CLPK_real, __z__: *mut __CLPK_complex, __ldz: *mut __CLPK_integer, __isuppz: *mut __CLPK_integer, __work: *mut __CLPK_real, __lwork: *mut __CLPK_integer, __iwork: *mut __CLPK_integer, __liwork: *mut __CLPK_integer, __info: *mut __CLPK_integer) -> c_int