Пример #1
0
int main()
{
    slong iter;
    flint_rand_t state;

    flint_printf("add_inline....");
    fflush(stdout);

    flint_randinit(state);

    for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++)
    {
        fmpz_t a, b, c, d;

        fmpz_init(a);
        fmpz_init(b);
        fmpz_init(c);
        fmpz_init(d);

        fmpz_randtest(a, state, 1 + n_randint(state, 200));
        fmpz_randtest(b, state, 1 + n_randint(state, 200));
        fmpz_randtest(c, state, 1 + n_randint(state, 200));
        fmpz_randtest(d, state, 1 + n_randint(state, 200));

        fmpz_add(c, a, b);
        fmpz_add_inline(d, a, b);
        if (!fmpz_equal(c, d))
        {
            flint_printf("FAIL\n");
            fmpz_print(a); flint_printf("\n\n");
            fmpz_print(b); flint_printf("\n\n");
            fmpz_print(c); flint_printf("\n\n");
            fmpz_print(d); flint_printf("\n\n");
            abort();
        }

        fmpz_add_inline(a, a, b);
        if (!fmpz_equal(c, a))
        {
            flint_printf("FAIL (aliasing 1)\n");
            fmpz_print(a); flint_printf("\n\n");
            fmpz_print(b); flint_printf("\n\n");
            fmpz_print(c); flint_printf("\n\n");
            fmpz_print(d); flint_printf("\n\n");
            abort();
        }
        fmpz_randtest(a, state, 1 + n_randint(state, 200));

        fmpz_add(c, a, b);
        fmpz_add_inline(b, a, b);
        if (!fmpz_equal(c, b))
        {
            flint_printf("FAIL (aliasing 2)\n");
            fmpz_print(a); flint_printf("\n\n");
            fmpz_print(b); flint_printf("\n\n");
            fmpz_print(c); flint_printf("\n\n");
            fmpz_print(d); flint_printf("\n\n");
            abort();
        }

        fmpz_add(d, a, a);
        fmpz_add_inline(c, a, a);
        if (!fmpz_equal(c, d))
        {
            flint_printf("FAIL (aliasing 3)\n");
            fmpz_print(a); flint_printf("\n\n");
            fmpz_print(b); flint_printf("\n\n");
            fmpz_print(c); flint_printf("\n\n");
            fmpz_print(d); flint_printf("\n\n");
            abort();
        }

        fmpz_add(d, a, a);
        fmpz_add_inline(a, a, a);
        if (!fmpz_equal(d, a))
        {
            flint_printf("FAIL (aliasing 4)\n");
            fmpz_print(a); flint_printf("\n\n");
            fmpz_print(b); flint_printf("\n\n");
            fmpz_print(c); flint_printf("\n\n");
            fmpz_print(d); flint_printf("\n\n");
            abort();
        }

        fmpz_clear(a);
        fmpz_clear(b);
        fmpz_clear(c);
        fmpz_clear(d);
    }

    flint_randclear(state);
    flint_cleanup();
    flint_printf("PASS\n");
    return EXIT_SUCCESS;
}
Пример #2
0
int main()
{
    slong iter;
    flint_rand_t state;

    flint_printf("get_fmpz....");
    fflush(stdout);

    flint_randinit(state);

    for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++)
    {
        arf_t x, x2;
        fmpz_t z, z2, e;
        int ret1, ret2;

        arf_init(x);
        arf_init(x2);
        fmpz_init(z);
        fmpz_init(z2);
        fmpz_init(e);

        arf_randtest(x, state, 2 + n_randint(state, 1000), 10);
        fmpz_randtest(z, state, 1 + n_randint(state, 1000));
        fmpz_randtest(z2, state, 1 + n_randint(state, 1000));
        fmpz_randtest(e, state, 1 + n_randint(state, 200));
        arf_mul_2exp_fmpz(x2, x, e);

        ret1 = arf_get_fmpz(z, x, ARF_RND_DOWN);
        ret2 = arf_get_fmpz_fixed_fmpz(z2, x2, e);

        if (!fmpz_equal(z, z2) || (ret1 != ret2))
        {
            flint_printf("FAIL (fixed_fmpz)\n\n");
            flint_printf("x = "); arf_print(x); flint_printf("\n\n");
            flint_printf("x2 = "); arf_print(x2); flint_printf("\n\n");
            flint_printf("z = "); fmpz_print(z); flint_printf("\n\n");
            flint_printf("z2 = "); fmpz_print(z2); flint_printf("\n\n");
            flint_printf("ret1 = %d, ret2 = %d\n\n", ret1, ret2);
            flint_abort();
        }

        arf_clear(x);
        arf_clear(x2);
        fmpz_clear(z);
        fmpz_clear(z2);
        fmpz_clear(e);
    }

    for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++)
    {
        arf_t x, x2;
        fmpz_t z, z2;
        slong e;
        int ret1, ret2;

        arf_init(x);
        arf_init(x2);
        fmpz_init(z);
        fmpz_init(z2);

        arf_randtest(x, state, 2 + n_randint(state, 1000), 10);
        fmpz_randtest(z, state, 1 + n_randint(state, 1000));
        fmpz_randtest(z2, state, 1 + n_randint(state, 1000));
        e = n_randtest(state);
        arf_mul_2exp_si(x2, x, e);

        ret1 = arf_get_fmpz(z, x, ARF_RND_DOWN);
        ret2 = arf_get_fmpz_fixed_si(z2, x2, e);

        if (!fmpz_equal(z, z2) || (ret1 != ret2))
        {
            flint_printf("FAIL (fixed_si)\n\n");
            flint_printf("x = "); arf_print(x); flint_printf("\n\n");
            flint_printf("x2 = "); arf_print(x2); flint_printf("\n\n");
            flint_printf("z = "); fmpz_print(z); flint_printf("\n\n");
            flint_printf("z2 = "); fmpz_print(z2); flint_printf("\n\n");
            flint_printf("ret1 = %d, ret2 = %d\n\n", ret1, ret2);
            flint_abort();
        }

        arf_clear(x);
        arf_clear(x2);
        fmpz_clear(z);
        fmpz_clear(z2);
    }

    for (iter = 0; iter < 1000000 * arb_test_multiplier(); iter++)
    {
        slong bits;
        arf_t x;
        mpfr_t y;
        fmpz_t z, z2;
        mpz_t w;
        int ret1, ret2;

        bits = 2 + n_randint(state, 1000);

        arf_init(x);
        mpfr_init2(y, bits);
        fmpz_init(z);
        fmpz_init(z2);
        mpz_init(w);

        arf_randtest(x, state, bits, 10);
        fmpz_randtest(z, state, 1 + n_randint(state, 1000));

        arf_get_mpfr(y, x, MPFR_RNDN);

        switch (n_randint(state, 5))
        {
            case 0:
                ret1 = arf_get_fmpz(z, x, ARF_RND_FLOOR);
                ret2 = mpfr_get_z(w, y, MPFR_RNDD);
                break;
            case 1:
                ret1 = arf_get_fmpz(z, x, ARF_RND_CEIL);
                ret2 = mpfr_get_z(w, y, MPFR_RNDU);
                break;
            case 2:
                ret1 = arf_get_fmpz(z, x, ARF_RND_DOWN);
                ret2 = mpfr_get_z(w, y, MPFR_RNDZ);
                break;
            case 3:
                ret1 = arf_get_fmpz(z, x, ARF_RND_UP);
                ret2 = mpfr_get_z(w, y, MPFR_RNDA);
                break;
            default:
                ret1 = arf_get_fmpz(z, x, ARF_RND_NEAR);
                ret2 = mpfr_get_z(w, y, MPFR_RNDN);
                break;
        }

        fmpz_set_mpz(z2, w);

        if (!fmpz_equal(z, z2) || (ret1 != (ret2 != 0)))
        {
            flint_printf("FAIL\n\n");
            flint_printf("x = "); arf_print(x); flint_printf("\n\n");
            flint_printf("z = "); fmpz_print(z); flint_printf("\n\n");
            flint_printf("z2 = "); fmpz_print(z2); flint_printf("\n\n");
            flint_printf("ret1 = %d, ret2 = %d\n\n", ret1, ret2);
            flint_abort();
        }

        arf_clear(x);
        mpfr_clear(y);
        fmpz_clear(z);
        fmpz_clear(z2);
        mpz_clear(w);
    }

    flint_randclear(state);
    flint_cleanup();
    flint_printf("PASS\n");
    return EXIT_SUCCESS;
}
Пример #3
0
void nf_elem_rep_mat_fmpz_mat_den(fmpz_mat_t res, fmpz_t den, const nf_elem_t a, const nf_t nf)
{
    if (nf->flag & NF_LINEAR)
    {
        fmpz_set(fmpz_mat_entry(res, 0, 0), LNF_ELEM_NUMREF(a));
        fmpz_set(den, LNF_ELEM_DENREF(a));
    }
    else if (nf->flag & NF_QUADRATIC)
    {
        nf_elem_t t;
        const fmpz * const anum = QNF_ELEM_NUMREF(a);
        const fmpz * const aden = QNF_ELEM_DENREF(a);
        fmpz * const tnum = QNF_ELEM_NUMREF(t);
        fmpz * const tden = QNF_ELEM_DENREF(t);

        nf_elem_init(t, nf);
        nf_elem_mul_gen(t, a, nf);

        if (fmpz_equal(tden, aden))
        {
            fmpz_set(fmpz_mat_entry(res, 0, 0), anum);
            fmpz_set(fmpz_mat_entry(res, 0, 1), anum + 1);
            fmpz_set(fmpz_mat_entry(res, 1, 0), tnum);
            fmpz_set(fmpz_mat_entry(res, 1, 1), tnum + 1);

            fmpz_set(den, tden);
        }
        else
        {
            fmpz_lcm(den, tden, aden);
            fmpz_divexact(fmpz_mat_entry(res, 0, 0), den, aden);
            fmpz_mul(fmpz_mat_entry(res, 0, 1), anum + 1, fmpz_mat_entry(res, 0, 0));
            fmpz_mul(fmpz_mat_entry(res, 0, 0), anum, fmpz_mat_entry(res, 0, 0));

            fmpz_divexact(fmpz_mat_entry(res, 1, 0), den, tden);
            fmpz_mul(fmpz_mat_entry(res, 1, 1), tnum + 1, fmpz_mat_entry(res, 1, 0));
            fmpz_mul(fmpz_mat_entry(res, 1, 0), tnum, fmpz_mat_entry(res, 1, 0));
        }
        nf_elem_clear(t, nf);
    }
    else
    {
        slong i, j;
        nf_elem_t t;
        slong d = fmpq_poly_degree(nf->pol);

        nf_elem_init(t, nf);
        nf_elem_set(t, a, nf);

        if (NF_ELEM(a)->length == 0)
        {
            fmpz_mat_zero(res);
            fmpz_one(den);
        }
        else if (NF_ELEM(a)->length == 1)
        {
            fmpz_mat_zero(res);
            for (i = 0; i <= d - 1; i++)
            {
              fmpz_set(fmpz_mat_entry(res, i, i), fmpq_poly_numref(NF_ELEM(a)));
            }
            fmpz_set(den, fmpq_poly_denref(NF_ELEM(a)));
        }
        else
        {
            /* Special case if defining polynomial is monic and integral and the element also has trivial denominator */
            if (nf->flag & NF_MONIC && fmpz_is_one(fmpq_poly_denref(nf->pol)) && fmpz_is_one(fmpq_poly_denref(NF_ELEM(a))))
            {
                fmpz_one(den);

                for (i = 0; i <= NF_ELEM(a)->length - 1; i++)
                    fmpz_set(fmpz_mat_entry(res, 0, i), fmpq_poly_numref(NF_ELEM(a)) + i);

                for (i = NF_ELEM(a)->length; i <= d - 1; i++)
                    fmpz_zero(fmpz_mat_entry(res, 0, i));

                for (j = 1; j <= d - NF_ELEM(a)->length; j++)
                {
                    nf_elem_mul_gen(t, t, nf);
                    for (i = 0; i < j; i++)
                        fmpz_zero(fmpz_mat_entry(res, j, i));

                    for (i = 0; i <= NF_ELEM(a)->length - 1; i++)
                        fmpz_set(fmpz_mat_entry(res, j, j + i), fmpq_poly_numref(NF_ELEM(a)) + i);

                    for (i = j + NF_ELEM(a)->length; i <= d - 1; i++)
                        fmpz_zero(fmpz_mat_entry(res, j, i));
                }

                for (j = d - NF_ELEM(a)->length + 1; j <= d - 1; j++)
                {
                    nf_elem_mul_gen(t, t, nf);
                    for (i = 0; i <= d - 1; i++)
                        fmpz_set(fmpz_mat_entry(res, j, i), fmpq_poly_numref(NF_ELEM(t)) + i);
                }
            }
            else
            {
                /* Now the general case. For 0 <= j < d - 2 we store the
                 * denominator for row j at res[d - 1, j]. At the end we
                 * divide the lcm of all of them by the corresponding
                 * denominator of the row to get the correct multiplier for
                 * row.
                 */

                for (i = 0; i <= NF_ELEM(a)->length - 1; i++)
                    fmpz_set(fmpz_mat_entry(res, 0, i), fmpq_poly_numref(NF_ELEM(a)) + i);

                for (i = NF_ELEM(a)->length; i <= d - 1; i++)
                    fmpz_zero(fmpz_mat_entry(res, 0, i));

                fmpz_set(fmpz_mat_entry(res, d - 1, 0), fmpq_poly_denref(NF_ELEM(a)));

                for (j = 1; j <= d - NF_ELEM(a)->length; j++)
                {
                    nf_elem_mul_gen(t, t, nf);
                    for (i = 0; i < j; i++)
                        fmpz_zero(fmpz_mat_entry(res, j, i));

                    for (i = 0; i <= NF_ELEM(a)->length - 1; i++)
                        fmpz_set(fmpz_mat_entry(res, j, j + i), fmpq_poly_numref(NF_ELEM(a)) + i);

                    for (i = j + NF_ELEM(a)->length; i <= d - 1; i++)
                        fmpz_zero(fmpz_mat_entry(res, j, i));

                    fmpz_set(fmpz_mat_entry(res, d - 1, j), fmpq_poly_denref(NF_ELEM(a)));
                }

                for (j = d - NF_ELEM(a)->length + 1; j <= d - 2; j++)
                {
                    nf_elem_mul_gen(t, t, nf);
                    for (i = 0; i <= d - 1; i++)
                        fmpz_set(fmpz_mat_entry(res, j, i), fmpq_poly_numref(NF_ELEM(t)) + i);

                    fmpz_set(fmpz_mat_entry(res, d - 1, j), fmpq_poly_denref(NF_ELEM(t)));

                }

                nf_elem_mul_gen(t, t, nf);
                /* Now compute the correct denominator */

                fmpz_set(fmpz_mat_entry(res, d - 1, d - 1), fmpq_poly_denref(NF_ELEM(t)));

                fmpz_set(den, fmpq_poly_denref(NF_ELEM(t)));

                for (j = 0; j <= d - 2; j++)
                    fmpz_lcm(den, den, fmpz_mat_entry(res, d - 1, j));

                for (j = 0; j <= d - 2; j++)
                {
                    if (!fmpz_equal(den, fmpz_mat_entry(res, d - 1, j)))
                    {
                        fmpz_divexact(fmpz_mat_entry(res, d - 1, j), den, fmpz_mat_entry(res, d - 1, j));

                        for (i = 0; i <= d - 1; i++)
                            fmpz_mul(fmpz_mat_entry(res, j, i), fmpz_mat_entry(res, j, i), fmpz_mat_entry(res, d - 1, j));
                    }
                }

                if (fmpz_equal(den, fmpz_mat_entry(res, d - 1, d - 1)))
                {
                    for (i = 0; i < d; i++)
                        fmpz_set(fmpz_mat_entry(res, d - 1, i), fmpq_poly_numref(NF_ELEM(t)) + i);
                }
                else
                {
                    fmpz_divexact(fmpz_mat_entry(res, d - 1, d - 1), den, fmpq_poly_denref(NF_ELEM(t)));
                    for (i = 0; i < d; i++)
                        fmpz_mul(fmpz_mat_entry(res, d - 1, i), fmpq_poly_numref(NF_ELEM(t)) + i, fmpz_mat_entry(res, d - 1, d - 1));
                }
            }
        }
        nf_elem_clear(t, nf);
    }
}
Пример #4
0
int main()
{
    slong iter;
    flint_rand_t state;

    flint_printf("add_si_inline....");
    fflush(stdout);

    flint_randinit(state);

    for (iter = 0; iter < 100000; iter++)
    {
        fmpz_t a, c, d;
        slong b;

        fmpz_init(a);
        fmpz_init(c);
        fmpz_init(d);

        fmpz_randtest(a, state, 1 + n_randint(state, 200));
        fmpz_randtest(c, state, 1 + n_randint(state, 200));
        fmpz_randtest(d, state, 1 + n_randint(state, 200));
        b = n_randtest(state);

        fmpz_add_si(c, a, b);
        fmpz_add_si_inline(d, a, b);

        if (!fmpz_equal(c, d))
        {
            flint_printf("FAIL\n");
            fmpz_print(a);
            flint_printf("\n\n");
            flint_printf("%wd", b);
            flint_printf("\n\n");
            fmpz_print(c);
            flint_printf("\n\n");
            fmpz_print(d);
            flint_printf("\n\n");
            abort();
        }

        fmpz_add_si_inline(a, a, b);
        if (!fmpz_equal(c, a))
        {
            flint_printf("FAIL (aliasing)\n");
            fmpz_print(a);
            flint_printf("\n\n");
            flint_printf("%wd", b);
            flint_printf("\n\n");
            fmpz_print(c);
            flint_printf("\n\n");
            fmpz_print(d);
            flint_printf("\n\n");
            abort();
        }

        fmpz_clear(a);
        fmpz_clear(c);
        fmpz_clear(d);
    }

    flint_randclear(state);
    flint_cleanup();
    flint_printf("PASS\n");
    return EXIT_SUCCESS;
}
Пример #5
0
int main()
{
    slong i, j;
    int sign;

    fmpz_t input;
    fmpz_t result;
    fmpz_t r1;
    fmpz_t m1;
    fmpz_t mprod;
    ulong r2, m2;

    FLINT_TEST_INIT(state);

    flint_printf("CRT_ui....");
    fflush(stdout);

    fmpz_init(input);
    fmpz_init(result);
    fmpz_init(r1);
    fmpz_init(m1);
    fmpz_init(mprod);
    

    for (i = 0; i < 1000 * flint_test_multiplier(); i++)
    {
        slong nprimes;

        m2 = n_randtest_prime(state, 0);
        nprimes = 1 + n_randint(state, 4);

        fmpz_set_ui(m1, UWORD(1));
        for (j = 0; j < nprimes; )
        {
            ulong t = n_randtest_prime(state, 0);
            if (t != m2)
            {
                fmpz_mul_ui(m1, m1, t);
                j++;
            }
        }

        fmpz_mul_ui(mprod, m1, m2);

        sign = n_randint(state, 2);

        if (sign)
            fmpz_randtest_mod_signed(input, state, mprod);
        else
            fmpz_randtest_mod(input, state, mprod);

        fmpz_mod(r1, input, m1);
        r2 = fmpz_fdiv_ui(input, m2);

        fmpz_CRT_ui(result, r1, m1, r2, m2, sign);

        if (!fmpz_equal(result, input))
        {
            flint_printf("FAIL:\n");
            flint_printf("m1: "); fmpz_print(m1); flint_printf("\n");
            flint_printf("m2: %wu\n", m2);
            flint_printf("m1*m2: "); fmpz_print(mprod); flint_printf("\n");
            flint_printf("input: "); fmpz_print(input); flint_printf("\n");
            flint_printf("r1: "); fmpz_print(r1); flint_printf("\n");
            flint_printf("r2: %wu\n", r2);
            flint_printf("result: "); fmpz_print(result); flint_printf("\n");
            flint_printf("%wd Equalness: %d\n", i, fmpz_equal(result, input));
            flint_printf("\n");
            abort();
        }
    }

    fmpz_clear(input);
    fmpz_clear(result);
    fmpz_clear(r1);
    fmpz_clear(m1);
    fmpz_clear(mprod);
    

    FLINT_TEST_CLEANUP(state);

    flint_printf("PASS\n");
    return 0;
}
Пример #6
0
slong
fmpr_div(fmpr_t z, const fmpr_t x, const fmpr_t y, slong prec, fmpr_rnd_t rnd)
{
    if (fmpr_is_special(x) || fmpr_is_special(y))
    {
        _fmpr_div_special(z, x, y);
        return FMPR_RESULT_EXACT;
    }

    /* division by power of two <=> shift exponents */
    if (fmpz_is_pm1(fmpr_manref(y)))
    {
        if (fmpz_is_one(fmpr_manref(y)))
            fmpz_set(fmpr_manref(z), fmpr_manref(x));
        else
            fmpz_neg(fmpr_manref(z), fmpr_manref(x));
        fmpz_sub(fmpr_expref(z), fmpr_expref(x), fmpr_expref(y));
        return _fmpr_normalise(fmpr_manref(z), fmpr_expref(z), prec, rnd);
    }
    else
    {
        slong xbits, ybits, extra, extra_pad, extra_control;
        int negative;
        fmpz_t t, u;

        /* todo: work out exact needed shift */
        xbits = fmpz_bits(fmpr_manref(x));
        ybits = fmpz_bits(fmpr_manref(y));

        extra = prec - xbits + ybits;
        extra = FLINT_MAX(extra, 0);

        extra_pad = 32;
        extra_control = 24;
        extra += extra_pad;

        fmpz_init(t);
        fmpz_init(u);

        fmpz_mul_2exp(t, fmpr_manref(x), extra);
        fmpz_tdiv_q(u, t, fmpr_manref(y));

        if (low_bits_are_zero(u, extra_control))
        {
            fmpz_t v;
            fmpz_init(v);
            fmpz_mul(v, u, fmpr_manref(y));

            negative = fmpz_sgn(fmpr_manref(x)) != fmpz_sgn(fmpr_manref(y));

            if (!fmpz_equal(t, v))
            {
                if (negative)
                    fmpz_sub_ui(u, u, 1);
                else
                    fmpz_add_ui(u, u, 1);
            }

            fmpz_clear(v);
        }

        fmpz_swap(fmpr_manref(z), u);

        fmpz_clear(t);
        fmpz_clear(u);

        fmpz_sub(fmpr_expref(z), fmpr_expref(x), fmpr_expref(y));
        fmpz_sub_ui(fmpr_expref(z), fmpr_expref(z), extra);

        return _fmpr_normalise(fmpr_manref(z), fmpr_expref(z), prec, rnd);
    }
}