pub unsafe extern fn dstevx_(__jobz: *mut c_char, __range: *mut c_char, __n: *mut __CLPK_integer, __d__: *mut __CLPK_doublereal, __e: *mut __CLPK_doublereal, __vl: *mut __CLPK_doublereal, __vu: *mut __CLPK_doublereal, __il: *mut __CLPK_integer, __iu: *mut __CLPK_integer, __abstol: *mut __CLPK_doublereal, __m: *mut __CLPK_integer, __w: *mut __CLPK_doublereal, __z__: *mut __CLPK_doublereal, __ldz: *mut __CLPK_integer, __work: *mut __CLPK_doublereal, __iwork: *mut __CLPK_integer, __ifail: *mut __CLPK_integer, __info: *mut __CLPK_integer) -> c_int