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Annotation of OpenXM_contrib/gmp/tests/mpz/t-perfsqr.c, Revision 1.1.1.1

1.1       ohara       1: /* Test mpz_perfect_square_p and mpz_perfect_power_p
                      2:
                      3: Copyright 2000, 2001 Free Software Foundation, Inc.
                      4:
                      5: This file is part of the GNU MP Library.
                      6:
                      7: The GNU MP Library is free software; you can redistribute it and/or modify
                      8: it under the terms of the GNU Lesser General Public License as published by
                      9: the Free Software Foundation; either version 2.1 of the License, or (at your
                     10: option) any later version.
                     11:
                     12: The GNU MP Library is distributed in the hope that it will be useful, but
                     13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
                     15: License for more details.
                     16:
                     17: You should have received a copy of the GNU Lesser General Public License
                     18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     20: MA 02111-1307, USA. */
                     21:
                     22: #include <stdio.h>
                     23: #include <stdlib.h>
                     24:
                     25: #include "gmp.h"
                     26: #include "gmp-impl.h"
                     27: #include "tests.h"
                     28:
                     29: void debug_mp _PROTO ((mpz_t, int));
                     30:
                     31: int
                     32: main (int argc, char **argv)
                     33: {
                     34:   mpz_t x2, x2t, x;
                     35:   mp_size_t x2n;
                     36:   int res;
                     37:   int i;
                     38:   /* int cnt = 0; */
                     39:   int reps = 100000;
                     40:   gmp_randstate_ptr rands;
                     41:   mpz_t bs;
                     42:
                     43:   tests_start ();
                     44:   rands = RANDS;
                     45:
                     46:   mpz_init (bs);
                     47:
                     48:   if (argc == 2)
                     49:      reps = atoi (argv[1]);
                     50:
                     51:   mpz_init (x2);
                     52:   mpz_init (x);
                     53:   mpz_init (x2t);
                     54:
                     55:   for (i = 0; i < reps; i++)
                     56:     {
                     57:       mpz_urandomb (bs, rands, 9);
                     58:       x2n = mpz_get_ui (bs);
                     59:       mpz_rrandomb (x2, rands, x2n);
                     60:       /* mpz_out_str (stdout, -16, x2); puts (""); */
                     61:
                     62:       res = mpz_perfect_square_p (x2);
                     63:       mpz_sqrt (x, x2);
                     64:       mpz_mul (x2t, x, x);
                     65:
                     66:       if (res != (mpz_cmp (x2, x2t) == 0))
                     67:        abort ();
                     68:
                     69:       /* cnt += res != 0; */
                     70:     }
                     71:   /* printf ("%d/%d perfect squares\n", cnt, reps); */
                     72:
                     73:   mpz_clear (bs);
                     74:   mpz_clear (x2);
                     75:   mpz_clear (x);
                     76:   mpz_clear (x2t);
                     77:
                     78:   tests_end ();
                     79:   exit (0);
                     80: }
                     81:
                     82: void
                     83: debug_mp (mpz_t x, int base)
                     84: {
                     85:   mpz_out_str (stderr, base, x); fputc ('\n', stderr);
                     86: }