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Annotation of OpenXM_contrib/gmp/tests/mpz/t-hamdist.c, Revision 1.1

1.1     ! ohara       1: /* Test mpz_hamdist.
        !             2:
        !             3: Copyright 2001, 2002 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: #include "gmp.h"
        !            25: #include "gmp-impl.h"
        !            26: #include "tests.h"
        !            27:
        !            28:
        !            29: void
        !            30: check_twobits (void)
        !            31: {
        !            32:   unsigned long  i, j, got, want;
        !            33:   mpz_t  x, y;
        !            34:
        !            35:   mpz_init (x);
        !            36:   mpz_init (y);
        !            37:   for (i = 0; i < 5 * GMP_NUMB_BITS; i++)
        !            38:     {
        !            39:       for (j = 0; j < 5 * GMP_NUMB_BITS; j++)
        !            40:         {
        !            41:           mpz_set_ui (x, 0L);
        !            42:           mpz_setbit (x, i);
        !            43:           mpz_set_ui (y, 0L);
        !            44:           mpz_setbit (y, j);
        !            45:
        !            46:           want = 2 * (i != j);
        !            47:           got = mpz_hamdist (x, y);
        !            48:           if (got != want)
        !            49:             {
        !            50:               printf    ("mpz_hamdist wrong on 2 bits pos/pos\n");
        !            51:             wrong:
        !            52:               printf    ("  i    %lu\n", i);
        !            53:               printf    ("  j    %lu\n", j);
        !            54:               printf    ("  got  %lu\n", got);
        !            55:               printf    ("  want %lu\n", want);
        !            56:               mpz_trace ("  x   ", x);
        !            57:               mpz_trace ("  y   ", y);
        !            58:               abort();
        !            59:             }
        !            60:
        !            61:           mpz_neg (x, x);
        !            62:           mpz_neg (y, y);
        !            63:           want = ABS ((long) (i-j));
        !            64:           got = mpz_hamdist (x, y);
        !            65:           if (got != want)
        !            66:             {
        !            67:               printf    ("mpz_hamdist wrong on 2 bits neg/neg\n");
        !            68:               goto wrong;
        !            69:             }
        !            70:         }
        !            71:
        !            72:     }
        !            73:   mpz_clear (x);
        !            74:   mpz_clear (y);
        !            75: }
        !            76:
        !            77:
        !            78: void
        !            79: check_rand (void)
        !            80: {
        !            81:   gmp_randstate_ptr  rands = RANDS;
        !            82:   unsigned long  got, want;
        !            83:   int    i;
        !            84:   mpz_t  x, y;
        !            85:
        !            86:   mpz_init (x);
        !            87:   mpz_init (y);
        !            88:
        !            89:   for (i = 0; i < 2000; i++)
        !            90:     {
        !            91:       mpz_erandomb (x, rands, 6 * GMP_NUMB_BITS);
        !            92:       mpz_negrandom (x, rands);
        !            93:       mpz_mul_2exp (x, x, urandom() % (4 * GMP_NUMB_BITS));
        !            94:
        !            95:       mpz_erandomb (y, rands, 6 * GMP_NUMB_BITS);
        !            96:       mpz_negrandom (y, rands);
        !            97:       mpz_mul_2exp (y, y, urandom() % (4 * GMP_NUMB_BITS));
        !            98:
        !            99:       want = refmpz_hamdist (x, y);
        !           100:       got = mpz_hamdist (x, y);
        !           101:       if (got != want)
        !           102:         {
        !           103:           printf    ("mpz_hamdist wrong on random\n");
        !           104:           printf    ("  got  %lu\n", got);
        !           105:           printf    ("  want %lu\n", want);
        !           106:           mpz_trace ("  x   ", x);
        !           107:           mpz_trace ("  y   ", y);
        !           108:           abort();
        !           109:         }
        !           110:     }
        !           111:   mpz_clear (x);
        !           112:   mpz_clear (y);
        !           113: }
        !           114:
        !           115: int
        !           116: main (void)
        !           117: {
        !           118:   tests_start ();
        !           119:   mp_trace_base = -16;
        !           120:
        !           121:   check_twobits ();
        !           122:   check_rand ();
        !           123:
        !           124:   tests_end ();
        !           125:   exit (0);
        !           126: }