mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/*
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Copyright (C) 2012 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "arb_poly.h"
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int main()
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{
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slong iter;
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flint_rand_t state;
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flint_printf("divrem....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++)
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{
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slong m, n, qbits1, qbits2, rbits1, rbits2, rbits3;
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fmpq_poly_t A, B, Q, R;
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arb_poly_t a, b, q, r;
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qbits1 = 2 + n_randint(state, 200);
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qbits2 = 2 + n_randint(state, 200);
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rbits1 = 2 + n_randint(state, 200);
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rbits2 = 2 + n_randint(state, 200);
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rbits3 = 2 + n_randint(state, 200);
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m = 1 + n_randint(state, 20);
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n = 1 + n_randint(state, 20);
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fmpq_poly_init(A);
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fmpq_poly_init(B);
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fmpq_poly_init(Q);
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fmpq_poly_init(R);
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arb_poly_init(a);
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arb_poly_init(b);
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arb_poly_init(q);
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arb_poly_init(r);
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fmpq_poly_randtest(A, state, m, qbits1);
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fmpq_poly_randtest_not_zero(B, state, n, qbits2);
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fmpq_poly_divrem(Q, R, A, B);
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arb_poly_set_fmpq_poly(a, A, rbits1);
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arb_poly_set_fmpq_poly(b, B, rbits2);
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arb_poly_divrem(q, r, a, b, rbits3);
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if (!arb_poly_contains_fmpq_poly(q, Q) ||
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!arb_poly_contains_fmpq_poly(r, R))
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{
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flint_printf("FAIL\n\n");
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flint_printf("A = "); fmpq_poly_print(A); flint_printf("\n\n");
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flint_printf("B = "); fmpq_poly_print(B); flint_printf("\n\n");
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flint_printf("Q = "); fmpq_poly_print(Q); flint_printf("\n\n");
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flint_printf("R = "); fmpq_poly_print(R); flint_printf("\n\n");
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flint_printf("a = "); arb_poly_printd(a, 15); flint_printf("\n\n");
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flint_printf("b = "); arb_poly_printd(b, 15); flint_printf("\n\n");
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flint_printf("q = "); arb_poly_printd(q, 15); flint_printf("\n\n");
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flint_printf("r = "); arb_poly_printd(r, 15); flint_printf("\n\n");
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abort();
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}
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arb_poly_divrem(a, r, a, b, rbits3);
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if (!arb_poly_equal(a, q))
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{
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flint_printf("FAIL (aliasing q, a)\n\n");
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}
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arb_poly_set_fmpq_poly(a, A, rbits1);
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arb_poly_divrem(b, r, a, b, rbits3);
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if (!arb_poly_equal(b, q))
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{
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flint_printf("FAIL (aliasing q, b)\n\n");
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abort();
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}
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arb_poly_set_fmpq_poly(b, B, rbits2);
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arb_poly_divrem(q, a, a, b, rbits3);
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if (!arb_poly_equal(a, r))
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{
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flint_printf("FAIL (aliasing r, a)\n\n");
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abort();
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}
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arb_poly_set_fmpq_poly(a, A, rbits1);
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arb_poly_divrem(q, b, a, b, rbits3);
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if (!arb_poly_equal(b, r))
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{
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flint_printf("FAIL (aliasing r, b)\n\n");
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abort();
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}
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fmpq_poly_clear(A);
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fmpq_poly_clear(B);
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fmpq_poly_clear(Q);
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fmpq_poly_clear(R);
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arb_poly_clear(a);
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arb_poly_clear(b);
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arb_poly_clear(q);
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arb_poly_clear(r);
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}
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flint_randclear(state);
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flint_cleanup();
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flint_printf("PASS\n");
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return EXIT_SUCCESS;
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}
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