mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
100 lines
3 KiB
C
100 lines
3 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) 2012 Fredrik Johansson
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******************************************************************************/
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#include "fmpr.h"
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int main()
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{
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long iter;
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flint_rand_t state;
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printf("set_round_mpn....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 1000000; iter++)
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{
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long prec, bits, shift, ret1, ret2;
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fmpz_t man, exp;
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fmpr_t y;
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mpz_t x;
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fmpz_t fx;
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fmpr_rnd_t rnd;
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fmpz_init(man);
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fmpz_init(exp);
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mpz_init(x);
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fmpz_init(fx);
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fmpr_init(y);
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bits = 1 + n_randint(state, 1000);
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prec = 2 + n_randint(state, 1000);
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if (n_randint(state, 10) == 0)
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prec = FMPR_PREC_EXACT;
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fmpz_randtest_not_zero(fx, state, bits);
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fmpz_get_mpz(x, fx);
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switch (n_randint(state, 4))
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{
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case 0: rnd = FMPR_RND_DOWN; break;
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case 1: rnd = FMPR_RND_UP; break;
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case 2: rnd = FMPR_RND_FLOOR; break;
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default: rnd = FMPR_RND_CEIL; break;
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}
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ret1 = _fmpr_set_round_mpn(&shift, man, x->_mp_d,
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FLINT_ABS(x->_mp_size), (x->_mp_size < 0) ? 1 : 0, prec, rnd);
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fmpz_set_si(exp, shift);
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ret2 = fmpr_set_round_fmpz(y, fx, prec, rnd);
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if (!fmpz_equal(fmpr_manref(y), man) || !fmpz_equal(fmpr_expref(y), exp) || ret1 != ret2)
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{
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printf("FAIL\n\n");
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printf("bits: %ld\n", bits);
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printf("prec: %ld\n", prec);
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printf("x = "); fmpz_print(fx); printf("\n\n");
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printf("man = "); fmpz_print(man); printf("\n\n");
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printf("exp = "); fmpz_print(exp); printf("\n\n");
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printf("y = "); fmpr_print(y); printf("\n\n");
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printf("ret1 = %ld, ret2 = %ld\n\n", ret1, ret2);
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abort();
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}
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fmpz_clear(man);
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fmpz_clear(exp);
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mpz_clear(x);
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fmpz_clear(fx);
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fmpr_clear(y);
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}
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flint_randclear(state);
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_fmpz_cleanup();
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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