github.com/aergoio/aergo@v1.3.1/libtool/src/gmp-6.1.2/tests/mpf/t-set_si.c (about)

     1  /* Test mpf_set_si and mpf_init_set_si.
     2  
     3  Copyright 2000, 2001, 2003 Free Software Foundation, Inc.
     4  
     5  This file is part of the GNU MP Library test suite.
     6  
     7  The GNU MP Library test suite is free software; you can redistribute it
     8  and/or modify it under the terms of the GNU General Public License as
     9  published by the Free Software Foundation; either version 3 of the License,
    10  or (at your option) any later version.
    11  
    12  The GNU MP Library test suite is distributed in the hope that it will be
    13  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
    14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
    15  Public License for more details.
    16  
    17  You should have received a copy of the GNU General Public License along with
    18  the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
    19  
    20  #include <stdio.h>
    21  #include <stdlib.h>
    22  #include "gmp.h"
    23  #include "gmp-impl.h"
    24  #include "tests.h"
    25  
    26  void
    27  check_data (void)
    28  {
    29    static const struct {
    30      long       x;
    31      mp_size_t  want_size;
    32      mp_limb_t  want_data[2];
    33    } data[] = {
    34  
    35      {  0L,  0 },
    36      {  1L,  1, { 1 } },
    37      { -1L, -1, { 1 } },
    38  
    39  #if GMP_NUMB_BITS >= BITS_PER_ULONG
    40      { LONG_MAX,  1, { LONG_MAX, 0 } },
    41      { -LONG_MAX,  -1, { LONG_MAX, 0 } },
    42      { LONG_HIGHBIT,  -1, { ULONG_HIGHBIT, 0 } },
    43  #else
    44      { LONG_MAX,  2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS } },
    45      { -LONG_MAX,  -2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS }},
    46      { LONG_HIGHBIT,  -2, { 0, ULONG_HIGHBIT >> GMP_NUMB_BITS } },
    47  #endif
    48    };
    49  
    50    mpf_t  x;
    51    int    i;
    52  
    53    for (i = 0; i < numberof (data); i++)
    54      {
    55        mpf_init (x);
    56        mpf_set_si (x, data[i].x);
    57        MPF_CHECK_FORMAT (x);
    58        if (x->_mp_size != data[i].want_size
    59            || refmpn_cmp_allowzero (x->_mp_d, data[i].want_data,
    60                                     ABS (data[i].want_size)) != 0
    61            || x->_mp_exp != ABS (data[i].want_size))
    62          {
    63            printf ("mpf_set_si wrong on data[%d]\n", i);
    64            abort();
    65          }
    66        mpf_clear (x);
    67  
    68        mpf_init_set_si (x, data[i].x);
    69        MPF_CHECK_FORMAT (x);
    70        if (x->_mp_size != data[i].want_size
    71            || refmpn_cmp_allowzero (x->_mp_d, data[i].want_data,
    72                                     ABS (data[i].want_size)) != 0
    73            || x->_mp_exp != ABS (data[i].want_size))
    74          {
    75            printf ("mpf_init_set_si wrong on data[%d]\n", i);
    76            abort();
    77          }
    78        mpf_clear (x);
    79      }
    80  }
    81  
    82  int
    83  main (void)
    84  {
    85    tests_start ();
    86  
    87    check_data ();
    88  
    89    tests_end ();
    90    exit (0);
    91  }