pub unsafe extern "C" fn dgegs_(
jobvsl: *mut c_char,
jobvsr: *mut c_char,
n: *mut c_int,
a: *mut c_double,
lda: *mut c_int,
b: *mut c_double,
ldb: *mut c_int,
alphar: *mut c_double,
alphai: *mut c_double,
Rf_beta: *mut c_double,
vsl: *mut c_double,
ldvsl: *mut c_int,
vsr: *mut c_double,
ldvsr: *mut c_int,
work: *mut c_double,
lwork: *mut c_int,
info: *mut c_int,
)