flint-sys 0.9.0

Bindings to the FLINT C library
Documentation 
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/*
    Copyright (C) 2010 William Hart

    This file is part of FLINT.

    FLINT is free software: you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License (LGPL) as published
    by the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.  See <https://www.gnu.org/licenses/>.
*/

#include "test_helpers.h"
#include "nmod_poly.h"

TEST_FUNCTION_START(nmod_poly_scalar_mul_nmod, state)
{
    int i, result;

    /* Check aliasing of a and b */
    for (i = 0; i < 1000 * flint_test_multiplier(); i++)
    {
        nmod_poly_t a, b;
        ulong n = n_randtest_not_zero(state);
        ulong c = n_randint(state, n);

        nmod_poly_init(a, n);
        nmod_poly_init(b, n);
        nmod_poly_randtest(a, state, n_randint(state, 100));

        nmod_poly_scalar_mul_nmod(b, a, c);
        nmod_poly_scalar_mul_nmod(a, a, c);

        result = (nmod_poly_equal(a, b));
        if (!result)
        {
            flint_printf("FAIL:\n");
            nmod_poly_print(a), flint_printf("\n\n");
            nmod_poly_print(b), flint_printf("\n\n");
            fflush(stdout);
            flint_abort();
        }

        nmod_poly_clear(a);
        nmod_poly_clear(b);
    }

    /* Check (a + b)*c = a*c + b*c */
    for (i = 0; i < 1000 * flint_test_multiplier(); i++)
    {
        nmod_poly_t a, b, d1, d2;
        ulong n = n_randtest_not_zero(state);
        ulong c = n_randint(state, n);

        nmod_poly_init(a, n);
        nmod_poly_init(b, n);
        nmod_poly_init(d1, n);
        nmod_poly_init(d2, n);
        nmod_poly_randtest(a, state, n_randint(state, 100));
        nmod_poly_randtest(b, state, n_randint(state, 100));

        nmod_poly_add(d1, a, b);
        nmod_poly_scalar_mul_nmod(d1, d1, c);

        nmod_poly_scalar_mul_nmod(d2, a, c);
        nmod_poly_scalar_mul_nmod(b, b, c);
        nmod_poly_add(d2, d2, b);

        result = (nmod_poly_equal(d1, d2));
        if (!result)
        {
            flint_printf("FAIL:\n");
            nmod_poly_print(d1), flint_printf("\n\n");
            nmod_poly_print(d2), flint_printf("\n\n");
            fflush(stdout);
            flint_abort();
        }

        nmod_poly_clear(a);
        nmod_poly_clear(b);
        nmod_poly_clear(d1);
        nmod_poly_clear(d2);
    }

    TEST_FUNCTION_END(state);
}