mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
104 lines
3 KiB
C
104 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) 2014 Fredrik Johansson
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******************************************************************************/
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#include "elefun.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("exp_fmpr_bb....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 5000; iter++)
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{
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fmprb_t x, y, z;
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long prec = 2 + n_randint(state, 8000);
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fmprb_init(x);
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fmprb_init(y);
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fmprb_init(z);
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fmprb_randtest(x, state, 1 + n_randint(state, 8000), 3);
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fmpr_zero(fmprb_radref(x));
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if (n_randint(state, 2))
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{
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#if FLINT_BITS == 64
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fmprb_mul_2exp_si(x, x, 1 + n_randint(state, 40));
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#else
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fmprb_mul_2exp_si(x, x, 1 + n_randint(state, 20));
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#endif
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}
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else
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{
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fmprb_mul_2exp_si(x, x, -n_randint(state, 1.5 * prec));
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}
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elefun_exp_via_mpfr(y, x, prec + 100);
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elefun_exp_fmpr_bb(z, fmprb_midref(x), prec, 0);
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if (!fmprb_contains(z, y))
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{
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printf("FAIL: containment\n\n");
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printf("prec = %ld\n\n", prec);
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printf("x = "); fmprb_print(x); printf("\n\n");
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printf("y = "); fmprb_print(y); printf("\n\n");
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printf("z = "); fmprb_print(z); printf("\n\n");
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abort();
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}
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if (fmprb_rel_accuracy_bits(z) < prec - 2)
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{
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printf("FAIL: poor accuracy\n\n");
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printf("prec = %ld, acc = %ld\n\n", prec, fmprb_rel_accuracy_bits(z));
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printf("x = "); fmprb_print(x); printf("\n\n");
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printf("y = "); fmprb_print(y); printf("\n\n");
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printf("z = "); fmprb_print(z); printf("\n\n");
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abort();
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}
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elefun_exp_fmpr_bb(x, fmprb_midref(x), prec, 0);
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if (!fmprb_overlaps(x, z))
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{
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printf("FAIL: aliasing\n\n");
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abort();
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}
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fmprb_clear(x);
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fmprb_clear(y);
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fmprb_clear(z);
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}
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flint_randclear(state);
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flint_cleanup();
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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