pub unsafe extern "C" fn ztgexc_(
__wantq: *mut __CLPK_logical,
__wantz: *mut __CLPK_logical,
__n: *mut __CLPK_integer,
__a: *mut __CLPK_doublecomplex,
__lda: *mut __CLPK_integer,
__b: *mut __CLPK_doublecomplex,
__ldb: *mut __CLPK_integer,
__q: *mut __CLPK_doublecomplex,
__ldq: *mut __CLPK_integer,
__z__: *mut __CLPK_doublecomplex,
__ldz: *mut __CLPK_integer,
__ifst: *mut __CLPK_integer,
__ilst: *mut __CLPK_integer,
__info: *mut __CLPK_integer
) -> c_int