Function openssl_sys::EC_POINT_mul

pub unsafe extern fn EC_POINT_mul(group: *const EC_GROUP,
                                  r: *mut EC_POINT,
                                  n: *const BIGNUM,
                                  q: *const EC_POINT,
                                  m: *const BIGNUM,
                                  ctx: *mut BN_CTX)
                                  -> c_int