void testmain (int argc, char **argv) { unsigned i; unsigned long e; mpz_t u, s, r, bs; mpz_init (u); mpz_init (s); mpz_init (r); mpz_init (bs); for (i = 0; i < COUNT; i++) { mini_rrandomb (u, MAXBITS); mini_rrandomb (bs, 12); e = mpz_getlimbn (bs, 0) % mpz_sizeinbase (u, 2) + 2; if ((e & 1) && (mpz_getlimbn (bs, 0) & (1L<<10))) mpz_neg (u, u); mpz_rootrem (s, r, u, e); if (!rootrem_valid_p (u, s, r, e)) { fprintf (stderr, "mpz_rootrem(%lu-th) failed:\n", e); dump ("u", u); dump ("root", s); dump ("rem", r); abort (); } } mpz_clear (bs); mpz_clear (u); mpz_clear (s); mpz_clear (r); }
static PyObject * GMPy_MPZ_Function_IrootRem(PyObject *self, PyObject *args) { unsigned long n; MPZ_Object *root = NULL, *rem = NULL, *tempx = NULL; PyObject *result = NULL; if ((PyTuple_GET_SIZE(args) != 2) || ((!IS_INTEGER(PyTuple_GET_ITEM(args, 0))) || (!IS_INTEGER(PyTuple_GET_ITEM(args, 1))))) { TYPE_ERROR("iroot_rem() requires 'int','int' arguments"); return NULL; } n = c_ulong_From_Integer(PyTuple_GET_ITEM(args, 1)); if ((n == 0) || ((n == (unsigned long)(-1)) && PyErr_Occurred())) { VALUE_ERROR("n must be > 0"); return NULL; } if (!(tempx = GMPy_MPZ_From_Integer(PyTuple_GET_ITEM(args, 0), NULL))) { /* LCOV_EXCL_START */ return NULL; /* LCOV_EXCL_STOP */ } if (mpz_sgn(tempx->z) < 0) { VALUE_ERROR("iroot_rem() of negative number"); Py_DECREF((PyObject*)tempx); return NULL; } if (!(result = PyTuple_New(2)) || !(root = GMPy_MPZ_New(NULL)) || !(rem = GMPy_MPZ_New(NULL))) { /* LCOV_EXCL_START */ Py_DECREF((PyObject*)tempx); Py_XDECREF(result); Py_XDECREF((PyObject*)root); Py_XDECREF((PyObject*)rem); return NULL; /* LCOV_EXCL_STOP */ } mpz_rootrem(root->z, rem->z, tempx->z, n); Py_DECREF((PyObject*)tempx); PyTuple_SET_ITEM(result, 0, (PyObject*)root); PyTuple_SET_ITEM(result, 1, (PyObject*)rem); return result; }
// Factorization int factor(const Ptr<RCP<const Integer>> &f, const Integer &n, double B1) { int ret_val = 0; mpz_class _n, _f; _n = n.as_mpz(); #ifdef HAVE_CSYMPY_ECM if (mpz_perfect_power_p(_n.get_mpz_t())) { unsigned long int i = 1; mpz_class m, rem; rem = 1; // Any non zero number m = 2; // set `m` to 2**i, i = 1 at the begining // calculate log2n, this can be improved for (; m < _n; i++) m = m * 2; // eventually `rem` = 0 zero as `n` is a perfect power. `f_t` will // be set to a factor of `n` when that happens while (i > 1 && rem != 0) { mpz_rootrem(_f.get_mpz_t(), rem.get_mpz_t(), _n.get_mpz_t(), i); i--; } ret_val = 1; } else { if (mpz_probab_prime_p(_n.get_mpz_t(), 25) > 0) { // most probably, n is a prime ret_val = 0; _f = _n; } else { for (int i = 0; i < 10 && !ret_val; i++) ret_val = ecm_factor(_f.get_mpz_t(), _n.get_mpz_t(), B1, NULL); if (!ret_val) throw std::runtime_error("ECM failed to factor the given number"); } } #else // B1 is discarded if gmp-ecm is not installed ret_val = _factor_trial_division_sieve(_f, _n); #endif // HAVE_CSYMPY_ECM *f = integer(_f); return ret_val; }
void check_one (mpz_t root1, mpz_t x2, unsigned long nth, int i) { mpz_t temp, temp2; mpz_t root2, rem2; mpz_init (root2); mpz_init (rem2); mpz_init (temp); mpz_init (temp2); MPZ_CHECK_FORMAT (root1); mpz_rootrem (root2, rem2, x2, nth); MPZ_CHECK_FORMAT (root2); MPZ_CHECK_FORMAT (rem2); mpz_pow_ui (temp, root1, nth); MPZ_CHECK_FORMAT (temp); mpz_add (temp2, temp, rem2); /* Is power of result > argument? */ if (mpz_cmp (root1, root2) != 0 || mpz_cmp (x2, temp2) != 0 || mpz_cmpabs (temp, x2) > 0) { fprintf (stderr, "ERROR after test %d\n", i); debug_mp (x2, 10); debug_mp (root1, 10); debug_mp (root2, 10); fprintf (stderr, "nth: %lu\n", nth); abort (); } if (nth > 1 && mpz_cmp_ui (temp, 1L) > 0 && ! mpz_perfect_power_p (temp)) { fprintf (stderr, "ERROR in mpz_perfect_power_p after test %d\n", i); debug_mp (temp, 10); debug_mp (root1, 10); fprintf (stderr, "nth: %lu\n", nth); abort (); } if (nth <= 10000 && mpz_sgn(x2) > 0) /* skip too expensive test */ { mpz_add_ui (temp2, root1, 1L); mpz_pow_ui (temp2, temp2, nth); MPZ_CHECK_FORMAT (temp2); /* Is square of (result + 1) <= argument? */ if (mpz_cmp (temp2, x2) <= 0) { fprintf (stderr, "ERROR after test %d\n", i); debug_mp (x2, 10); debug_mp (root1, 10); fprintf (stderr, "nth: %lu\n", nth); abort (); } } mpz_clear (root2); mpz_clear (rem2); mpz_clear (temp); mpz_clear (temp2); }
bool root(mpz & root, mpz const & a, unsigned k) { static LEAN_THREAD_LOCAL mpz rem; mpz_rootrem(root.m_val, rem.m_val, a.m_val, k); return rem.is_zero(); }
bool root(mpz & root, mpz const & a, unsigned k) { mpz rem; mpz_rootrem(root.m_val, rem.m_val, a.m_val, k); return rem.is_zero(); }
mpz_class squareRoot(const mpz_class& i) { mpz_class root, remainder; mpz_rootrem(root.get_mpz_t(), remainder.get_mpz_t(), i.get_mpz_t(), 2); assert(remainder == 0); return root; }
bool isSquare(const mpz_class& i) { mpz_class dummy, remainder; mpz_rootrem(dummy.get_mpz_t(), remainder.get_mpz_t(), i.get_mpz_t(), 2); return remainder == 0; }
int main() { srand(1337); // The primes we will perform trial division with on small integers. std::vector<uint32_t> primes; // Generate the trial division primes using a simple sieve. { uint32_t max = (uint32_t)ceil(sqrt(TRIAL_BOUND)) + 1; char *sieve = new char[max]; memset(sieve, 1, max); for(uint32_t p = 2; p < max; ++p) { if(!sieve[p]) continue; primes.push_back(p); for(uint32_t i = p; i < max; i += p) sieve[i] = 0; } delete[] sieve; } mpz_class N; // Read numbers to factor from stdin until EOF. while(std::cin >> N) { // This quadratic sieve implementation is designed to factor numbers no larger than 100 bits. if(mpz_sizeinbase(N.get_mpz_t(), 2) > 100) { std::cerr << N << " is too large\n" << std::endl; continue; } std::stack<mpz_class> factors; factors.push(N); while(!factors.empty()) { mpz_class factor = factors.top(); factors.pop(); // If the factor is prime, print it. if(mpz_probab_prime_p(factor.get_mpz_t(), 10)) { std::cout << factor << std::endl; continue; // Run trial division if factor is small. } else if(factor < TRIAL_BOUND) { uint32_t f = factor.get_ui(); for(uint32_t p = 0; p < primes.size(); ++p) { if(f % primes[p] == 0) { factors.push(primes[p]); factors.push(factor / primes[p]); break; } } } else { // Before we run quadratic sieve, check for small factors. bool found_factor = false; for(uint32_t p = 0; p < primes.size(); ++p) { if(mpz_divisible_ui_p(factor.get_mpz_t(), primes[p])) { factors.push(primes[p]); factors.push(factor / primes[p]); found_factor = true; break; } } if(found_factor) continue; // Quadratic sieve doesn't handle perferct powers very well, handle those separately. if(mpz_perfect_power_p(factor.get_mpz_t())) { mpz_class root, rem; // Check root remainders up half of the amount of bits in factor. uint32_t max = mpz_sizeinbase(factor.get_mpz_t(), 2) / 2; for(uint32_t n = 2; n < max; ++n) { mpz_rootrem(root.get_mpz_t(), rem.get_mpz_t(), factor.get_mpz_t(), n); if(rem == 0) { // Push the n root factors. for(uint32_t i = 0; i < n; ++i) factors.push(root); break; } } } else { mpz_class f = quadratic_sieve(factor); factors.push(f); factors.push(factor / f); } } } std::cout << std::endl; } return 0; }
int main (int argc, char **argv) { int i; int pass, reps = 400; mpz_t in1, in2, in3; unsigned long int in2i; mp_size_t size; mpz_t res1, res2, res3; mpz_t ref1, ref2, ref3; mpz_t t; unsigned long int r1, r2; gmp_randstate_ptr rands; mpz_t bs; unsigned long bsi, size_range; tests_start (); TESTS_REPS (reps, argv, argc); rands = RANDS; mpz_init (bs); mpz_init (in1); mpz_init (in2); mpz_init (in3); mpz_init (ref1); mpz_init (ref2); mpz_init (ref3); mpz_init (res1); mpz_init (res2); mpz_init (res3); mpz_init (t); for (pass = 1; pass <= reps; pass++) { if (isatty (fileno (stdout))) { printf ("\r%d/%d passes", pass, reps); fflush (stdout); } mpz_urandomb (bs, rands, 32); size_range = mpz_get_ui (bs) % 21 + 2; if ((pass & 1) == 0) { /* Make all input operands have quite different sizes */ mpz_urandomb (bs, rands, 32); size = mpz_get_ui (bs) % size_range; mpz_rrandomb (in1, rands, size); mpz_urandomb (bs, rands, 32); size = mpz_get_ui (bs) % size_range; mpz_rrandomb (in2, rands, size); mpz_urandomb (bs, rands, 32); size = mpz_get_ui (bs) % size_range; mpz_rrandomb (in3, rands, size); } else { /* Make all input operands have about the same size */ mpz_urandomb (bs, rands, size_range); size = mpz_get_ui (bs); mpz_rrandomb (in1, rands, size); mpz_urandomb (bs, rands, size_range); size = mpz_get_ui (bs); mpz_rrandomb (in2, rands, size); mpz_urandomb (bs, rands, size_range); size = mpz_get_ui (bs); mpz_rrandomb (in3, rands, size); } mpz_urandomb (bs, rands, 3); bsi = mpz_get_ui (bs); if ((bsi & 1) != 0) mpz_neg (in1, in1); if ((bsi & 2) != 0) mpz_neg (in2, in2); if ((bsi & 4) != 0) mpz_neg (in3, in3); for (i = 0; i < numberof (dss); i++) { if (dss[i].isdivision && mpz_sgn (in2) == 0) continue; if (dss[i].isslow && size_range > 19) continue; (dss[i].fptr) (ref1, in1, in2); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); INVOKE_RSS (dss[i], res1, res1, in2); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL (dss, i, in1, in2, NULL); mpz_set (res1, in2); INVOKE_RSS (dss[i], res1, in1, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL (dss, i, in1, in2, NULL); } for (i = 0; i < numberof (ddss_div); i++) { if (mpz_sgn (in2) == 0) continue; (ddss_div[i].fptr) (ref1, ref2, in1, in2); MPZ_CHECK_FORMAT (ref1); MPZ_CHECK_FORMAT (ref2); mpz_set (res1, in1); INVOKE_RRSS (ddss_div[i], res1, res2, res1, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL (ddss_div, i, in1, in2, NULL); mpz_set (res2, in1); INVOKE_RRSS (ddss_div[i], res1, res2, res2, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL (ddss_div, i, in1, in2, NULL); mpz_set (res1, in2); INVOKE_RRSS (ddss_div[i], res1, res2, in1, res1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL (ddss_div, i, in1, in2, NULL); mpz_set (res2, in2); INVOKE_RRSS (ddss_div[i], res1, res2, in1, res2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL (ddss_div, i, in1, in2, NULL); } for (i = 0; i < numberof (ds); i++) { if (ds[i].nonneg && mpz_sgn (in1) < 0) continue; (ds[i].fptr) (ref1, in1); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); INVOKE_RS (ds[i], res1, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL (ds, i, in1, in2, NULL); } in2i = mpz_get_ui (in2); for (i = 0; i < numberof (dsi); i++) { if (dsi[i].mod != 0) in2i = mpz_get_ui (in2) % dsi[i].mod; (dsi[i].fptr) (ref1, in1, in2i); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); INVOKE_RRS (dsi[i], res1, res1, in2i); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL (dsi, i, in1, in2, NULL); } if (in2i != 0) /* Don't divide by 0. */ { for (i = 0; i < numberof (dsi_div); i++) { r1 = (dsi_div[i].fptr) (ref1, in1, in2i); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); r2 = (dsi_div[i].fptr) (res1, res1, in2i); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0 || r1 != r2) FAIL (dsi_div, i, in1, in2, NULL); } for (i = 0; i < numberof (ddsi_div); i++) { r1 = (ddsi_div[i].fptr) (ref1, ref2, in1, in2i); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); r2 = (ddsi_div[i].fptr) (res1, res2, res1, in2i); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2) FAIL (ddsi_div, i, in1, in2, NULL); mpz_set (res2, in1); (ddsi_div[i].fptr) (res1, res2, res2, in2i); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2) FAIL (ddsi_div, i, in1, in2, NULL); } } if (mpz_sgn (in1) >= 0) { mpz_sqrtrem (ref1, ref2, in1); MPZ_CHECK_FORMAT (ref1); MPZ_CHECK_FORMAT (ref2); mpz_set (res1, in1); mpz_sqrtrem (res1, res2, res1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL2 (mpz_sqrtrem, in1, NULL, NULL); mpz_set (res2, in1); mpz_sqrtrem (res1, res2, res2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL2 (mpz_sqrtrem, in1, NULL, NULL); mpz_set (res1, in1); mpz_sqrtrem (res1, res1, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref2, res1) != 0) FAIL2 (mpz_sqrtrem, in1, NULL, NULL); } if (mpz_sgn (in1) >= 0) { mpz_root (ref1, in1, in2i % 0x100 + 1); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); mpz_root (res1, res1, in2i % 0x100 + 1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_root, in1, in2, NULL); } if (mpz_sgn (in1) >= 0) { mpz_rootrem (ref1, ref2, in1, in2i % 0x100 + 1); MPZ_CHECK_FORMAT (ref1); MPZ_CHECK_FORMAT (ref2); mpz_set (res1, in1); mpz_rootrem (res1, res2, res1, in2i % 0x100 + 1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL2 (mpz_rootrem, in1, in2, NULL); mpz_set (res2, in1); mpz_rootrem (res1, res2, res2, in2i % 0x100 + 1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0) FAIL2 (mpz_rootrem, in1, in2, NULL); } if (size_range < 18) /* run fewer tests since gcdext lots of time */ { mpz_gcdext (ref1, ref2, ref3, in1, in2); MPZ_CHECK_FORMAT (ref1); MPZ_CHECK_FORMAT (ref2); MPZ_CHECK_FORMAT (ref3); mpz_set (res1, in1); mpz_gcdext (res1, res2, res3, res1, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res2, in1); mpz_gcdext (res1, res2, res3, res2, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res3, in1); mpz_gcdext (res1, res2, res3, res3, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res1, in2); mpz_gcdext (res1, res2, res3, in1, res1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res2, in2); mpz_gcdext (res1, res2, res3, in1, res2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res3, in2); mpz_gcdext (res1, res2, res3, in1, res3); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); MPZ_CHECK_FORMAT (res3); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res1, in1); mpz_gcdext (res1, res2, NULL, res1, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res2, in1); mpz_gcdext (res1, res2, NULL, res2, in2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res1, in2); mpz_gcdext (res1, res2, NULL, in1, res1); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); mpz_set (res2, in2); mpz_gcdext (res1, res2, NULL, in1, res2); MPZ_CHECK_FORMAT (res1); MPZ_CHECK_FORMAT (res2); if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || mpz_cmp (ref3, res3) != 0) FAIL2 (mpz_gcdext, in1, in2, NULL); } /* Don't run mpz_powm for huge exponents or when undefined. */ if (size_range < 17 && mpz_sizeinbase (in2, 2) < 250 && mpz_sgn (in3) != 0 && (mpz_sgn (in2) >= 0 || mpz_invert (t, in1, in3))) { mpz_powm (ref1, in1, in2, in3); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); mpz_powm (res1, res1, in2, in3); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_powm, in1, in2, in3); mpz_set (res1, in2); mpz_powm (res1, in1, res1, in3); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_powm, in1, in2, in3); mpz_set (res1, in3); mpz_powm (res1, in1, in2, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_powm, in1, in2, in3); } /* Don't run mpz_powm_ui when undefined. */ if (size_range < 17 && mpz_sgn (in3) != 0) { mpz_powm_ui (ref1, in1, in2i, in3); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); mpz_powm_ui (res1, res1, in2i, in3); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_powm_ui, in1, in2, in3); mpz_set (res1, in3); mpz_powm_ui (res1, in1, in2i, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_powm_ui, in1, in2, in3); } { r1 = mpz_gcd_ui (ref1, in1, in2i); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); r2 = mpz_gcd_ui (res1, res1, in2i); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_gcd_ui, in1, in2, NULL); } if (mpz_sgn (in2) != 0) { /* Test mpz_remove */ mp_bitcnt_t refretval, retval; refretval = mpz_remove (ref1, in1, in2); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, in1); retval = mpz_remove (res1, res1, in2); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0 || refretval != retval) FAIL2 (mpz_remove, in1, in2, NULL); mpz_set (res1, in2); retval = mpz_remove (res1, in1, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0 || refretval != retval) FAIL2 (mpz_remove, in1, in2, NULL); } if (mpz_sgn (in2) != 0) { /* Test mpz_divexact */ mpz_mul (t, in1, in2); mpz_divexact (ref1, t, in2); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, t); mpz_divexact (res1, res1, in2); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_divexact, t, in2, NULL); mpz_set (res1, in2); mpz_divexact (res1, t, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_divexact, t, in2, NULL); } if (mpz_sgn (in2) > 0) { /* Test mpz_divexact_gcd, same as mpz_divexact */ mpz_mul (t, in1, in2); mpz_divexact_gcd (ref1, t, in2); MPZ_CHECK_FORMAT (ref1); mpz_set (res1, t); mpz_divexact_gcd (res1, res1, in2); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_divexact_gcd, t, in2, NULL); mpz_set (res1, in2); mpz_divexact_gcd (res1, t, res1); MPZ_CHECK_FORMAT (res1); if (mpz_cmp (ref1, res1) != 0) FAIL2 (mpz_divexact_gcd, t, in2, NULL); } } if (isatty (fileno (stdout))) printf ("\r%20s", ""); mpz_clear (bs); mpz_clear (in1); mpz_clear (in2); mpz_clear (in3); mpz_clear (ref1); mpz_clear (ref2); mpz_clear (ref3); mpz_clear (res1); mpz_clear (res2); mpz_clear (res3); mpz_clear (t); if (isatty (fileno (stdout))) printf ("\r"); tests_end (); exit (0); }