pub unsafe extern fn cgesvdx_(jobu: *const c_char,
jobvt: *const c_char,
range: *const c_char,
m: *const lapack_int,
n: *const lapack_int,
a: *mut lapack_complex_float,
lda: *const lapack_int,
vl: *const c_float,
vu: *const c_float,
il: *const lapack_int,
iu: *const lapack_int,
ns: *mut lapack_int,
s: *mut c_float,
u: *mut lapack_complex_float,
ldu: *const lapack_int,
vt: *mut lapack_complex_float,
ldvt: *const lapack_int,
work: *mut lapack_complex_float,
lwork: *const lapack_int,
rwork: *mut c_float,
iwork: *mut lapack_int,
info: *mut lapack_int)