mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
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/*
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Copyright (C) 2019 D.H.J Polymath
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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 "acb_dirichlet.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("backlund_s_bound....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 500 * arb_test_multiplier(); iter++)
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{
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arb_t a, b;
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mag_t u, v;
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slong aprec, bprec;
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slong abits, bbits;
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aprec = 2 + n_randint(state, 1000);
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bprec = 2 + n_randint(state, 1000);
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abits = 2 + n_randint(state, 100);
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bbits = 2 + n_randint(state, 100);
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arb_init(a);
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arb_init(b);
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mag_init(u);
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mag_init(v);
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arb_randtest(a, state, aprec, abits);
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arb_randtest(b, state, bprec, bbits);
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if (arb_is_nonnegative(a) && arb_is_nonnegative(b))
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{
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acb_dirichlet_backlund_s_bound(u, a);
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acb_dirichlet_backlund_s_bound(v, b);
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if ((arb_lt(a, b) && mag_cmp(u, v) > 0) ||
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(arb_gt(a, b) && mag_cmp(u, v) < 0))
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{
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flint_printf("FAIL: increasing on t >= 0\n\n");
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flint_printf("a = "); arb_print(a); flint_printf("\n\n");
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flint_printf("b = "); arb_print(b); flint_printf("\n\n");
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flint_printf("u = "); mag_print(u); flint_printf("\n\n");
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flint_printf("v = "); mag_print(v); flint_printf("\n\n");
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flint_abort();
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}
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}
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arb_clear(a);
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arb_clear(b);
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mag_clear(u);
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mag_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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