pub unsafe extern fn ctgsen_(ijob: *const lapack_int,
wantq: *const lapack_logical,
wantz: *const lapack_logical,
select: *const lapack_logical,
n: *const lapack_int,
a: *mut lapack_complex_float,
lda: *const lapack_int,
b: *mut lapack_complex_float,
ldb: *const lapack_int,
alpha: *mut lapack_complex_float,
beta: *mut lapack_complex_float,
q: *mut lapack_complex_float,
ldq: *const lapack_int,
z: *mut lapack_complex_float,
ldz: *const lapack_int,
m: *mut lapack_int,
pl: *mut c_float,
pr: *mut c_float,
dif: *mut c_float,
work: *mut lapack_complex_float,
lwork: *const lapack_int,
iwork: *mut lapack_int,
liwork: *const lapack_int,
info: *mut lapack_int)