mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*=============================================================================
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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
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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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ARB 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 ARB; 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) 2014 Fredrik Johansson
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******************************************************************************/
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#include "arf.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("set_round_fmpz....");
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fflush(stdout);
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flint_randinit(state);
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{
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arf_t x, y;
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arf_init(x);
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arf_init(y);
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for (iter = 0; iter < 100000; iter++)
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{
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slong bits1, bits2;
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int ret1, ret2;
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fmpz_t a;
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mpz_t b;
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mpfr_t g;
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arf_rnd_t rnd;
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bits1 = 1 + n_randint(state, 1000);
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bits2 = 2 + n_randint(state, 1000);
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if (n_randint(state, 100) == 0)
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bits2 = ARF_PREC_EXACT;
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fmpz_init(a);
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mpz_init(b);
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mpfr_init2(g, FLINT_MIN(bits2, 10000));
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if (n_randint(state, 100) == 0)
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{
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arf_clear(x);
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arf_clear(y);
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arf_init(x);
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arf_init(y);
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}
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/* dirty output variables */
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if (n_randint(state, 2))
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{
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arf_randtest_special(x, state, 1 + n_randint(state, 1000),
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1 + n_randint(state, 100));
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arf_randtest_special(y, state, 1 + n_randint(state, 1000),
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1 + n_randint(state, 100));
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}
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fmpz_randtest(a, state, bits1);
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fmpz_get_mpz(b, a);
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switch (n_randint(state, 4))
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{
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case 0: rnd = ARF_RND_DOWN; break;
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case 1: rnd = ARF_RND_UP; break;
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case 2: rnd = ARF_RND_FLOOR; break;
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default: rnd = ARF_RND_CEIL; break;
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}
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ret1 = arf_set_round_fmpz(x, a, bits2, rnd);
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ret2 = mpfr_set_z(g, b, arf_rnd_to_mpfr(rnd));
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arf_set_mpfr(y, g);
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arf_equal(x, y);
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if (!arf_equal(x, y) || ((ret1 == ARF_RESULT_EXACT) != (ret2 == 0)))
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{
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flint_printf("FAIL\n\n");
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flint_printf("bits1: %wd\n", bits1);
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flint_printf("bits2: %wd\n", bits2);
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flint_printf("a = "); fmpz_print(a); flint_printf("\n\n");
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flint_printf("x = "); arf_print(x); flint_printf("\n\n");
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flint_printf("y = "); arf_print(y); flint_printf("\n\n");
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flint_printf("ret1 = %d, ret2 = %d\n\n", ret1, ret2);
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abort();
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}
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fmpz_clear(a);
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mpz_clear(b);
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mpfr_clear(g);
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}
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arf_clear(x);
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arf_clear(y);
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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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