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

1.1     ! ohara       1: /* Exercise mpz_get_si.
        !             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: #include "gmp.h"
        !            25: #include "gmp-impl.h"
        !            26: #include "tests.h"
        !            27:
        !            28:
        !            29: void
        !            30: check_data (void)
        !            31: {
        !            32:   static const struct {
        !            33:     const char  *n;
        !            34:     long        want;
        !            35:   } data[] = {
        !            36:     { "0",      0L },
        !            37:     { "1",      1L },
        !            38:     { "-1",     -1L },
        !            39:     { "2",      2L },
        !            40:     { "-2",     -2L },
        !            41:     { "12345",  12345L },
        !            42:     { "-12345", -12345L },
        !            43:   };
        !            44:
        !            45:   int    i;
        !            46:   mpz_t  n;
        !            47:   long   got;
        !            48:
        !            49:   mpz_init (n);
        !            50:   for (i = 0; i < numberof (data); i++)
        !            51:     {
        !            52:       mpz_set_str_or_abort (n, data[i].n, 0);
        !            53:
        !            54:       got = mpz_get_si (n);
        !            55:       if (got != data[i].want)
        !            56:         {
        !            57:           printf ("mpz_get_si wrong at data[%d]\n", i);
        !            58:           printf ("   n     \"%s\" (", data[i].n);
        !            59:           mpz_out_str (stdout, 10, n); printf (", hex ");
        !            60:           mpz_out_str (stdout, 16, n); printf (")\n");
        !            61:           printf ("   got   %ld (0x%lX)\n", got, got);
        !            62:           printf ("   want  %ld (0x%lX)\n", data[i].want, data[i].want);
        !            63:           abort();
        !            64:         }
        !            65:     }
        !            66:   mpz_clear (n);
        !            67: }
        !            68:
        !            69:
        !            70: void
        !            71: check_max (void)
        !            72: {
        !            73:   mpz_t  n;
        !            74:   long   want;
        !            75:   long   got;
        !            76:
        !            77:   mpz_init (n);
        !            78:
        !            79: #define CHECK_MAX(name)                                 \
        !            80:   if (got != want)                                      \
        !            81:     {                                                   \
        !            82:       printf ("mpz_get_si wrong on %s\n", name);        \
        !            83:       printf ("   n    ");                              \
        !            84:       mpz_out_str (stdout, 10, n); printf (", hex ");   \
        !            85:       mpz_out_str (stdout, 16, n); printf ("\n");       \
        !            86:       printf ("   got  %ld, hex %lX\n", got, got);      \
        !            87:       printf ("   want %ld, hex %lX\n", want, want);    \
        !            88:       abort();                                          \
        !            89:     }
        !            90:
        !            91:   want = LONG_MAX;
        !            92:   mpz_set_si (n, want);
        !            93:   got = mpz_get_si (n);
        !            94:   CHECK_MAX ("LONG_MAX");
        !            95:
        !            96:   want = LONG_MIN;
        !            97:   mpz_set_si (n, want);
        !            98:   got = mpz_get_si (n);
        !            99:   CHECK_MAX ("LONG_MIN");
        !           100:
        !           101:   /* The following checks that -0x100000000 gives -0x80000000.  This doesn't
        !           102:      actually fit in a long and the result from mpz_get_si() is undefined,
        !           103:      but -0x80000000 is what comes out currently, and it should be that
        !           104:      value irrespective of the mp_limb_t size (long or long long).  */
        !           105:
        !           106:   want = LONG_MIN;
        !           107:   mpz_mul_2exp (n, n, 1);
        !           108:   CHECK_MAX ("-0x100...00");
        !           109:
        !           110:   mpz_clear (n);
        !           111: }
        !           112:
        !           113:
        !           114: int
        !           115: main (void)
        !           116: {
        !           117:   tests_start ();
        !           118:
        !           119:   check_data ();
        !           120:   check_max ();
        !           121:
        !           122:   tests_end ();
        !           123:   exit (0);
        !           124: }