mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/*
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Copyright (C) 2013 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 "fmpr.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_ui_2exp_fmpz....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++)
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{
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slong prec, ret1, ret2;
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fmpz_t man, exp;
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fmpr_t x, y;
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mp_limb_t lo;
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fmpr_rnd_t rnd;
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int negative;
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fmpz_init(man);
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fmpz_init(exp);
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fmpr_init(x);
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fmpr_init(y);
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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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negative = n_randint(state, 2);
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lo = n_randtest(state);
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fmpz_randtest(exp, state, 1 + n_randint(state, 100));
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if (negative)
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fmpz_neg_ui(man, lo);
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else
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fmpz_set_ui(man, lo);
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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_ui_2exp_fmpz(x, lo, exp, negative, prec, rnd);
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fmpr_set_fmpz_2exp(y, man, exp);
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ret2 = fmpr_set_round(y, y, prec, rnd);
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if (!fmpr_equal(x, y) || ret1 != ret2 ||
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!fmpr_check_ulp(x, ret1, prec) || !fmpr_check_ulp(y, ret2, prec))
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{
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flint_printf("FAIL\n\n");
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flint_printf("prec: %wd\n", prec);
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flint_printf("man = "); fmpz_print(man); flint_printf("\n\n");
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flint_printf("exp = "); fmpz_print(exp); flint_printf("\n\n");
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flint_printf("x = "); fmpr_print(x); flint_printf("\n\n");
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flint_printf("y = "); fmpr_print(y); flint_printf("\n\n");
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flint_printf("ret1 = %wd, ret2 = %wd\n\n", ret1, ret2);
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flint_abort();
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}
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fmpz_clear(man);
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fmpz_clear(exp);
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fmpr_clear(x);
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fmpr_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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