pub unsafe extern fn ztgsen_(__ijob: *mut __CLPK_integer, __wantq: *mut __CLPK_logical, __wantz: *mut __CLPK_logical, __select: *mut __CLPK_logical, __n: *mut __CLPK_integer, __a: *mut __CLPK_doublecomplex, __lda: *mut __CLPK_integer, __b: *mut __CLPK_doublecomplex, __ldb: *mut __CLPK_integer, __alpha: *mut __CLPK_doublecomplex, __beta: *mut __CLPK_doublecomplex, __q: *mut __CLPK_doublecomplex, __ldq: *mut __CLPK_integer, __z__: *mut __CLPK_doublecomplex, __ldz: *mut __CLPK_integer, __m: *mut __CLPK_integer, __pl: *mut __CLPK_doublereal, __pr: *mut __CLPK_doublereal, __dif: *mut __CLPK_doublereal, __work: *mut __CLPK_doublecomplex, __lwork: *mut __CLPK_integer, __iwork: *mut __CLPK_integer, __liwork: *mut __CLPK_integer, __info: *mut __CLPK_integer) -> c_int