Exemple #1
0
void
arf_set_fmpr(arf_t y, const fmpr_t x)
{
    if (fmpr_is_special(x))
    {
        if (fmpr_is_zero(x))
            arf_zero(y);
        else if (fmpr_is_pos_inf(x))
            arf_pos_inf(y);
        else if (fmpr_is_neg_inf(x))
            arf_neg_inf(y);
        else
            arf_nan(y);
    }
    else
    {
        arf_set_fmpz(y, fmpr_manref(x));
        fmpz_add_inline(ARF_EXPREF(y), ARF_EXPREF(y), fmpr_expref(x));
    }
}
Exemple #2
0
static __inline__ void
_arb_poly_addmullow_rad(arb_ptr z, fmpz * zz,
                        const fmpz * xz, const double * xdbl, const fmpz * xexps,
                        const slong * xblocks, slong xlen,
                        const fmpz * yz, const double * ydbl, const fmpz * yexps,
                        const slong * yblocks, slong ylen, slong n)
{
    slong i, j, k, ii, xp, yp, xl, yl, bn;
    fmpz_t zexp;
    mag_t t;

    fmpz_init(zexp);
    mag_init(t);

    for (i = 0; (xp = xblocks[i]) != xlen; i++)
    {
        for (j = 0; (yp = yblocks[j]) != ylen; j++)
        {
            if (xp + yp >= n)
                continue;

            xl = xblocks[i + 1] - xp;
            yl = yblocks[j + 1] - yp;
            bn = FLINT_MIN(xl + yl - 1, n - xp - yp);
            xl = FLINT_MIN(xl, bn);
            yl = FLINT_MIN(yl, bn);

            fmpz_add_inline(zexp, xexps + i, yexps + j);

            if (xl > 1 && yl > 1 &&
                    (xl < DOUBLE_BLOCK_MAX_LENGTH || yl < DOUBLE_BLOCK_MAX_LENGTH))
            {
                fmpz_add_ui(zexp, zexp, 2 * DOUBLE_BLOCK_SHIFT);

                for (k = 0; k < bn; k++)
                {
                    /* Classical multiplication (may round down!) */
                    double ss = 0.0;

                    for (ii = FLINT_MAX(0, k - yl + 1);
                            ii <= FLINT_MIN(xl - 1, k); ii++)
                    {
                        ss += xdbl[xp + ii] * ydbl[yp + k - ii];
                    }

                    /* Compensate for rounding error */
                    ss *= DOUBLE_ROUNDING_FACTOR;

                    mag_set_d_2exp_fmpz(t, ss, zexp);
                    mag_add(arb_radref(z + xp + yp + k),
                            arb_radref(z + xp + yp + k), t);
                }
            }
            else
            {
                if (xl >= yl)
                    _fmpz_poly_mullow(zz, xz + xp, xl, yz + yp, yl, bn);
                else
                    _fmpz_poly_mullow(zz, yz + yp, yl, xz + xp, xl, bn);

                for (k = 0; k < bn; k++)
                {
                    mag_set_fmpz_2exp_fmpz(t, zz + k, zexp);
                    mag_add(arb_radref(z + xp + yp + k),
                            arb_radref(z + xp + yp + k), t);
                }
            }
        }
    }

    fmpz_clear(zexp);
    mag_clear(t);
}
Exemple #3
0
int main()
{
    slong iter;
    flint_rand_t state;

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

    flint_randinit(state);

    for (iter = 0; iter < 100000; 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;
}