Function openssl_sys::EC_POINT_point2oct

pub unsafe extern fn EC_POINT_point2oct(group: *const EC_GROUP,
                                        p: *const EC_POINT,
                                        form: point_conversion_form_t,
                                        buf: *mut c_uchar,
                                        len: size_t,
                                        ctx: *mut BN_CTX)
                                        -> size_t