111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/* Test mpf_add.
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Copyright 1996, 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "tests.h"
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#ifndef SIZE
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#define SIZE 16
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#endif
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int
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main (int argc, char **argv)
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{
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mp_size_t size;
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mp_exp_t exp;
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int reps = 20000;
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int i;
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mpf_t u, v, w, wref;
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mp_size_t bprec = 100;
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mpf_t rerr, max_rerr, limit_rerr;
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tests_start ();
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if (argc > 1)
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{
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reps = strtol (argv[1], 0, 0);
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if (argc > 2)
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bprec = strtol (argv[2], 0, 0);
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}
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mpf_set_default_prec (bprec);
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mpf_init_set_ui (limit_rerr, 1);
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mpf_div_2exp (limit_rerr, limit_rerr, bprec);
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#if VERBOSE
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mpf_dump (limit_rerr);
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#endif
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mpf_init (rerr);
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mpf_init_set_ui (max_rerr, 0);
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mpf_init (u);
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mpf_init (v);
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mpf_init (w);
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mpf_init (wref);
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for (i = 0; i < reps; i++)
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{
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size = urandom () % (2 * SIZE) - SIZE;
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exp = urandom () % SIZE;
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mpf_random2 (u, size, exp);
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size = urandom () % (2 * SIZE) - SIZE;
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exp = urandom () % SIZE;
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mpf_random2 (v, size, exp);
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mpf_add (w, u, v);
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refmpf_add (wref, u, v);
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mpf_reldiff (rerr, w, wref);
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if (mpf_cmp (rerr, max_rerr) > 0)
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{
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mpf_set (max_rerr, rerr);
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#if VERBOSE
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mpf_dump (max_rerr);
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#endif
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if (mpf_cmp (rerr, limit_rerr) > 0)
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{
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printf ("ERROR after %d tests\n", i);
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printf (" u = "); mpf_dump (u);
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printf (" v = "); mpf_dump (v);
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printf ("wref = "); mpf_dump (wref);
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printf (" w = "); mpf_dump (w);
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abort ();
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}
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}
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}
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mpf_clear (limit_rerr);
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mpf_clear (rerr);
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mpf_clear (max_rerr);
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mpf_clear (u);
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mpf_clear (v);
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mpf_clear (w);
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mpf_clear (wref);
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tests_end ();
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exit (0);
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}
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