version 1.1.1.1, 2000/01/10 15:35:22 |
version 1.1.1.2, 2000/09/09 14:13:16 |
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/* Test mpf_div, mpf_div_2exp, mpf_mul_2exp. |
/* Test mpf_div, mpf_div_2exp, mpf_mul_2exp. |
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Copyright (C) 1996 Free Software Foundation, Inc. |
Copyright (C) 1996, 2000 Free Software Foundation, Inc. |
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This file is part of the GNU MP Library. |
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 |
The GNU MP Library is free software; you can redistribute it and/or modify |
it under the terms of the GNU Library General Public License as published by |
it under the terms of the GNU Lesser General Public License as published by |
the Free Software Foundation; either version 2 of the License, or (at your |
the Free Software Foundation; either version 2.1 of the License, or (at your |
option) any later version. |
option) any later version. |
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The GNU MP Library is distributed in the hope that it will be useful, but |
The GNU MP Library is distributed in the hope that it will be useful, but |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
License for more details. |
License for more details. |
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You should have received a copy of the GNU Library General Public License |
You should have received a copy of the GNU Lesser General Public License |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
MA 02111-1307, USA. */ |
MA 02111-1307, USA. */ |
Line 34 main (argc, argv) |
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Line 34 main (argc, argv) |
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{ |
{ |
int reps = 500000; |
int reps = 500000; |
int i; |
int i; |
mpf_t u, v, w1, w2; |
mpf_t u, v, w1, w2, w3; |
mp_size_t bprec = 100; |
mp_size_t bprec = 100; |
mpf_t rerr, limit_rerr; |
mpf_t rerr, limit_rerr; |
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mp_size_t un; |
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mp_exp_t ue; |
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if (argc > 1) |
if (argc > 1) |
{ |
{ |
Line 54 main (argc, argv) |
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Line 56 main (argc, argv) |
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mpf_init (v); |
mpf_init (v); |
mpf_init (w1); |
mpf_init (w1); |
mpf_init (w2); |
mpf_init (w2); |
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mpf_init (w3); |
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for (i = 0; i < reps; i++) |
for (i = 0; i < reps; i++) |
{ |
{ |
mp_size_t res_prec; |
unsigned long int res_prec; |
unsigned long int pow2; |
unsigned long int pow2; |
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res_prec = urandom () % (bprec + 100); |
res_prec = urandom () % (bprec + 100); |
mpf_set_prec (w1, res_prec); |
mpf_set_prec (w1, res_prec); |
mpf_set_prec (w2, res_prec); |
mpf_set_prec (w2, res_prec); |
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mpf_set_prec (w3, res_prec); |
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mpf_set_ui (limit_rerr, 1); |
mpf_set_ui (limit_rerr, 1); |
mpf_div_2exp (limit_rerr, limit_rerr, res_prec); |
mpf_div_2exp (limit_rerr, limit_rerr, res_prec); |
Line 71 main (argc, argv) |
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Line 75 main (argc, argv) |
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mpf_set_ui (v, 1); |
mpf_set_ui (v, 1); |
mpf_mul_2exp (v, v, pow2); |
mpf_mul_2exp (v, v, pow2); |
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un = urandom () % (2 * SIZE) - SIZE; |
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ue = urandom () % SIZE; |
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mpf_random2 (u, un, ue); |
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mpf_div_2exp (w1, u, pow2); |
mpf_div_2exp (w1, u, pow2); |
mpf_div (w2, u, v); |
mpf_div (w2, u, v); |
mpf_reldiff (rerr, w1, w2); |
mpf_reldiff (rerr, w1, w2); |
Line 81 main (argc, argv) |
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Line 89 main (argc, argv) |
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printf (" v = "); mpf_dump (v); |
printf (" v = "); mpf_dump (v); |
printf (" w1 = "); mpf_dump (w1); |
printf (" w1 = "); mpf_dump (w1); |
printf (" w2 = "); mpf_dump (w2); |
printf (" w2 = "); mpf_dump (w2); |
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abort (); |
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} |
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mpf_mul_2exp (w3, w1, pow2); |
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mpf_reldiff (rerr, u, w3); |
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if (mpf_cmp (rerr, limit_rerr) > 0) |
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{ |
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printf ("ERROR in mpf_mul_2exp 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 (" w1 = "); mpf_dump (w1); |
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printf (" w3 = "); mpf_dump (w3); |
abort (); |
abort (); |
} |
} |
} |
} |