pub unsafe extern fn zcposv_(uplo: *const c_char,
n: *const lapack_int,
nrhs: *const lapack_int,
a: *mut lapack_complex_double,
lda: *const lapack_int,
b: *const lapack_complex_double,
ldb: *const lapack_int,
x: *mut lapack_complex_double,
ldx: *const lapack_int,
work: *mut lapack_complex_double,
swork: *mut lapack_complex_float,
rwork: *mut c_double,
iter: *mut lapack_int,
info: *mut lapack_int)