136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2011, 2012 Sebastian Pancratz
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "long_extras.h"
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#include "ulong_extras.h"
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#include "padic_poly.h"
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int
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main(void)
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{
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int i, result;
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padic_ctx_t ctx;
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fmpz_t p;
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slong N;
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FLINT_TEST_INIT(state);
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flint_printf("evaluate_padic... ");
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fflush(stdout);
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/* Compare with the computation over QQ */
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for (i = 0; i < 200; i++)
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{
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padic_poly_t f;
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fmpq_poly_t fQQ;
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padic_t a, y, z;
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fmpq_t aQQ, yQQ;
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fmpz_init_set_ui(p, n_randtest_prime(state, 0));
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N = n_randint(state, PADIC_TEST_PREC_MAX - PADIC_TEST_PREC_MIN)
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+ PADIC_TEST_PREC_MIN;
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padic_ctx_init(ctx, p, FLINT_MAX(0, N-10), FLINT_MAX(0, N+10), PADIC_SERIES);
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padic_poly_init2(f, 0, N);
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fmpq_poly_init(fQQ);
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padic_init2(a, N);
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padic_init2(y, N);
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padic_init2(z, N);
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fmpq_init(aQQ);
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fmpq_init(yQQ);
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padic_poly_randtest(f, state, n_randint(state, 80), ctx);
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padic_randtest(a, state, ctx);
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padic_poly_get_fmpq_poly(fQQ, f, ctx);
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padic_get_fmpq(aQQ, a, ctx);
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padic_poly_evaluate_padic(y, f, a, ctx);
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fmpq_poly_evaluate_fmpq(yQQ, fQQ, aQQ);
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padic_set_fmpq(z, yQQ, ctx);
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if (padic_val(a) >= 0)
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{
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result = (padic_equal(y, z));
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if (!result)
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{
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flint_printf("FAIL (cmp with QQ):\n");
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flint_printf("f = "), padic_poly_print(f, ctx), flint_printf("\n\n");
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flint_printf("a = "), padic_print(a, ctx), flint_printf("\n\n");
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flint_printf("y = "), padic_print(y, ctx), flint_printf("\n\n");
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flint_printf("z = "), padic_print(z, ctx), flint_printf("\n\n");
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abort();
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}
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}
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else
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{
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slong N2 = N + (f->length - 1) * padic_val(a);
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padic_t y2, z2;
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padic_init2(y2, N2);
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padic_init2(z2, N2);
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padic_set(y2, y, ctx);
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padic_set(z2, z, ctx);
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result = (padic_equal(y2, z2));
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if (!result)
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{
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flint_printf("FAIL (cmp with QQ):\n");
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flint_printf("f = "), padic_poly_print(f, ctx), flint_printf("\n\n");
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flint_printf("a = "), padic_print(a, ctx), flint_printf("\n\n");
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flint_printf("y = "), padic_print(y, ctx), flint_printf("\n\n");
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flint_printf("z = "), padic_print(z, ctx), flint_printf("\n\n");
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flint_printf("y2 = "), padic_print(y2, ctx), flint_printf("\n\n");
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flint_printf("z2 = "), padic_print(z2, ctx), flint_printf("\n\n");
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abort();
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}
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padic_clear(y2);
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padic_clear(z2);
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}
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padic_poly_clear(f);
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fmpq_poly_clear(fQQ);
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padic_clear(a);
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padic_clear(y);
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padic_clear(z);
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fmpq_clear(aQQ);
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fmpq_clear(yQQ);
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padic_ctx_clear(ctx);
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fmpz_clear(p);
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}
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return EXIT_SUCCESS;
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}
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