mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
6bf072eb59
This will allow us to not loose the julia session on error. See also https://github.com/wbhart/flint2/pull/243
110 lines
3.3 KiB
C
110 lines
3.3 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 "arf.h"
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#include "flint/ulong_extras.h"
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int
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arf_mul_ui_naive(arf_t z, const arf_t x, ulong y, slong prec, arf_rnd_t rnd)
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{
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arf_t t;
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int r;
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arf_init(t);
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arf_set_ui(t, y);
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r = arf_mul(z, x, t, prec, rnd);
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arf_clear(t);
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return r;
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}
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int main()
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{
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slong iter, iter2;
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flint_rand_t state;
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flint_printf("mul_ui....");
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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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arf_t x, z, v;
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ulong y;
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slong prec, r1, r2;
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arf_rnd_t rnd;
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arf_init(x);
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arf_init(z);
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arf_init(v);
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for (iter2 = 0; iter2 < 100; iter2++)
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{
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arf_randtest_special(x, state, 2000, 10);
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y = n_randtest(state);
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prec = 2 + n_randint(state, 2000);
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if (n_randint(state, 10) == 0)
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prec = ARF_PREC_EXACT;
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switch (n_randint(state, 5))
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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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case 3: rnd = ARF_RND_CEIL; break;
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default: rnd = ARF_RND_NEAR; break;
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}
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switch (n_randint(state, 2))
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{
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case 0:
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r1 = arf_mul_ui(z, x, y, prec, rnd);
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r2 = arf_mul_ui_naive(v, x, y, prec, rnd);
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if (!arf_equal(z, v) || r1 != r2)
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{
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flint_printf("FAIL!\n");
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flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
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flint_printf("x = "); arf_print(x); flint_printf("\n\n");
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flint_printf("y = "); flint_printf("%wd", y); flint_printf("\n\n");
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flint_printf("z = "); arf_print(z); flint_printf("\n\n");
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flint_printf("v = "); arf_print(v); flint_printf("\n\n");
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flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
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flint_abort();
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}
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break;
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default:
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r2 = arf_mul_ui_naive(v, x, y, prec, rnd);
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r1 = arf_mul_ui(x, x, y, prec, rnd);
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if (!arf_equal(x, v) || r1 != r2)
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{
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flint_printf("FAIL (aliasing)!\n");
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flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
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flint_printf("x = "); arf_print(x); flint_printf("\n\n");
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flint_printf("y = "); flint_printf("%wd", y); flint_printf("\n\n");
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flint_printf("v = "); arf_print(v); flint_printf("\n\n");
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flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
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flint_abort();
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}
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break;
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}
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}
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arf_clear(x);
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arf_clear(z);
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arf_clear(v);
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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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