Пример #1
0
int
main(void)
{
    int i, result;
    ulong cflags = UWORD(0);

    FLINT_TEST_INIT(state);

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

    /* Check aliasing of the first argument */
    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_randtest(g, state, n_randint(state, 50), 100);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 50);

        fmpq_poly_compose(f, g, h);
        fmpq_poly_compose(g, g, h);

        cflags |= fmpq_poly_is_canonical(f) ? 0 : 1;
        cflags |= fmpq_poly_is_canonical(g) ? 0 : 2;
        result = (fmpq_poly_equal(f, g) && !cflags);
        if (!result)
        {
            flint_printf("FAIL (aliasing 1):\n");
            fmpq_poly_debug(f), flint_printf("\n\n");
            fmpq_poly_debug(g), flint_printf("\n\n");
            flint_printf("cflags = %wu\n\n", cflags);
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
    }

    /* Check aliasing of the second argument */
    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_randtest(g, state, n_randint(state, 50), 100);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 50);

        fmpq_poly_compose(f, g, h);
        fmpq_poly_compose(h, g, h);

        cflags |= fmpq_poly_is_canonical(f) ? 0 : 1;
        cflags |= fmpq_poly_is_canonical(h) ? 0 : 2;
        result = (fmpq_poly_equal(f, h) && !cflags);
        if (!result)
        {
            flint_printf("FAIL (aliasing 2):\n");
            fmpq_poly_debug(f), flint_printf("\n\n");
            fmpq_poly_debug(h), flint_printf("\n\n");
            flint_printf("cflags = %wu\n\n", cflags);
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
    }

    /* Compare with the naive method for g(h(t)) */
    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h, s, t, u;
        mpq_t c;
        slong k;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_init(s);
        fmpq_poly_init(t);
        fmpq_poly_init(u);
        mpq_init(c);
        fmpq_poly_randtest(g, state, n_randint(state, 20), 65);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 65);
        
        fmpq_poly_zero(s);
        fmpq_poly_set_ui(t, UWORD(1));
        for (k = WORD(0); k < g->length; k++)
        {
            fmpq_poly_get_coeff_mpq(c, g, k);
            fmpq_poly_scalar_mul_mpq(u, t, c);
            fmpq_poly_add(s, s, u);
            fmpq_poly_mul(t, t, h);
        }
        
        fmpq_poly_compose(f, g, h);

        result = (fmpq_poly_equal(f, s));
        if (!result)
        {
            flint_printf("FAIL (compare with naive):\n");
            flint_printf("g = "), fmpq_poly_debug(g), flint_printf("\n\n");
            flint_printf("h = "), fmpq_poly_debug(h), flint_printf("\n\n");
            flint_printf("f = "), fmpq_poly_debug(f), flint_printf("\n\n");
            flint_printf("s = "), fmpq_poly_debug(s), flint_printf("\n\n");
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
        fmpq_poly_clear(s);
        fmpq_poly_clear(t);
        fmpq_poly_clear(u);
        mpq_clear(c);
    }

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

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

    flint_randinit(state);

    for (iter = 0; iter < 3000 * arb_test_multiplier(); iter++)
    {
        slong qbits1, qbits2, rbits1, rbits2, rbits3;
        fmpq_poly_t A, B, C;
        acb_poly_t a, b, c, d;

        qbits1 = 2 + n_randint(state, 200);
        qbits2 = 2 + n_randint(state, 200);
        rbits1 = 2 + n_randint(state, 200);
        rbits2 = 2 + n_randint(state, 200);
        rbits3 = 2 + n_randint(state, 200);

        fmpq_poly_init(A);
        fmpq_poly_init(B);
        fmpq_poly_init(C);

        acb_poly_init(a);
        acb_poly_init(b);
        acb_poly_init(c);
        acb_poly_init(d);

        fmpq_poly_randtest(A, state, 1 + n_randint(state, 20), qbits1);
        fmpq_poly_randtest(B, state, 1 + n_randint(state, 10), qbits2);
        fmpq_poly_compose(C, A, B);

        acb_poly_randtest(c, state, 1 + n_randint(state, 20), rbits1, 4);

        acb_poly_set_fmpq_poly(a, A, rbits1);
        acb_poly_set_fmpq_poly(b, B, rbits2);
        acb_poly_compose(c, a, b, rbits3);

        if (!acb_poly_contains_fmpq_poly(c, C))
        {
            flint_printf("FAIL\n\n");
            flint_printf("bits3 = %wd\n", rbits3);

            flint_printf("A = "); fmpq_poly_print(A); flint_printf("\n\n");
            flint_printf("B = "); fmpq_poly_print(B); flint_printf("\n\n");
            flint_printf("C = "); fmpq_poly_print(C); flint_printf("\n\n");

            flint_printf("a = "); acb_poly_printd(a, 15); flint_printf("\n\n");
            flint_printf("b = "); acb_poly_printd(b, 15); flint_printf("\n\n");
            flint_printf("c = "); acb_poly_printd(c, 15); flint_printf("\n\n");

            flint_abort();
        }

        acb_poly_set(d, a);
        acb_poly_compose(d, d, b, rbits3);
        if (!acb_poly_equal(d, c))
        {
            flint_printf("FAIL (aliasing 1)\n\n");
            flint_abort();
        }

        acb_poly_set(d, b);
        acb_poly_compose(d, a, d, rbits3);
        if (!acb_poly_equal(d, c))
        {
            flint_printf("FAIL (aliasing 2)\n\n");
            flint_abort();
        }

        fmpq_poly_clear(A);
        fmpq_poly_clear(B);
        fmpq_poly_clear(C);

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

    flint_randclear(state);
    flint_cleanup();
    flint_printf("PASS\n");
    return EXIT_SUCCESS;
}
int
main(void)
{
    int i, result;
    FLINT_TEST_INIT(state);

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

    

    /* Check aliasing of the first argument */
    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h;
        slong n;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_randtest(g, state, n_randint(state, 40), 80);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 50);
        fmpq_poly_set_coeff_ui(h, 0, 0);
        n = n_randint(state, 20);

        fmpq_poly_compose_series_brent_kung(f, g, h, n);
        fmpq_poly_compose_series_brent_kung(g, g, h, n);

        result = (fmpq_poly_equal(f, g));
        if (!result)
        {
            flint_printf("FAIL (aliasing 1):\n");
            fmpq_poly_print(f), flint_printf("\n\n");
            fmpq_poly_print(g), flint_printf("\n\n");
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
    }

    /* Check aliasing of the second argument */
    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h;
        slong n;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_randtest(g, state, n_randint(state, 40), 80);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 50);
        fmpq_poly_set_coeff_ui(h, 0, 0);
        n = n_randint(state, 20);

        fmpq_poly_compose_series_brent_kung(f, g, h, n);
        fmpq_poly_compose_series_brent_kung(h, g, h, n);

        result = (fmpq_poly_equal(f, h));
        if (!result)
        {
            flint_printf("FAIL (aliasing 2):\n");
            fmpq_poly_print(f), flint_printf("\n\n");
            fmpq_poly_print(h), flint_printf("\n\n");
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
    }

    /* Compare with compose */
    for (i = 0; i < 20 * flint_test_multiplier(); i++)
    {
        fmpq_poly_t f, g, h, s, t;
        slong n;

        fmpq_poly_init(f);
        fmpq_poly_init(g);
        fmpq_poly_init(h);
        fmpq_poly_init(s);
        fmpq_poly_init(t);
        fmpq_poly_randtest(g, state, n_randint(state, 40), 80);
        fmpq_poly_randtest(h, state, n_randint(state, 20), 50);
        fmpq_poly_set_coeff_ui(h, 0, 0);
        n = n_randint(state, 20);

        fmpq_poly_compose(s, g, h);
        fmpq_poly_truncate(s, n);
        fmpq_poly_compose_series_brent_kung(f, g, h, n);

        result = (fmpq_poly_equal(f, s));
        if (!result)
        {
            flint_printf("FAIL (comparison):\n");
            flint_printf("n = %wd\n", n);
            flint_printf("g = "), fmpq_poly_print(g), flint_printf("\n\n");
            flint_printf("h = "), fmpq_poly_print(h), flint_printf("\n\n");
            flint_printf("f = "), fmpq_poly_print(f), flint_printf("\n\n");
            flint_printf("s = "), fmpq_poly_print(s), flint_printf("\n\n");
            abort();
        }

        fmpq_poly_clear(f);
        fmpq_poly_clear(g);
        fmpq_poly_clear(h);
        fmpq_poly_clear(s);
        fmpq_poly_clear(t);
    }

    FLINT_TEST_CLEANUP(state);
    
    flint_printf("PASS\n");
    return 0;
}