src/gmp-6.1.0/tests/mpz/t-set_si.c

/* Test mpz_set_si and mpz_init_set_si.

Copyright 2000-2002 Free Software Foundation, Inc.

This file is part of the GNU MP Library test suite.

The GNU MP Library test suite is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.

The GNU MP Library test suite is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
Public License for more details.

You should have received a copy of the GNU General Public License along with
the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */

#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"


void
check_data (void)
{
#if GMP_NUMB_BITS <= BITS_PER_ULONG
#define ENTRY(n)   { n, { n, 0 } }
#else
#define ENTRY(n)   { n, { (n) & GMP_NUMB_MASK, (n) >> GMP_NUMB_BITS } }
#endif

  static const struct {
    long       n;
    mp_size_t  want_size;
    mp_limb_t  want_data[2];
  } data[] = {

    {  0L,  0 },
    {  1L,  1, { 1 } },
    { -1L, -1, { 1 } },

#if GMP_NUMB_BITS >= BITS_PER_ULONG
    { LONG_MAX,  1, { LONG_MAX, 0 } },
    { -LONG_MAX,  -1, { LONG_MAX, 0 } },
    { LONG_HIGHBIT,  -1, { ULONG_HIGHBIT, 0 } },
#else
    { LONG_MAX,  2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS } },
    { -LONG_MAX,  -2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS }},
    { LONG_HIGHBIT,  -2, { 0, ULONG_HIGHBIT >> GMP_NUMB_BITS } },
#endif
  };

  mpz_t  n;
  int    i;

  for (i = 0; i < numberof (data); i++)
    {
      mpz_init (n);
      mpz_set_si (n, data[i].n);
      MPZ_CHECK_FORMAT (n);
      if (n->_mp_size != data[i].want_size
          || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
                                   ABS (data[i].want_size)) != 0)
        {
          printf ("mpz_set_si wrong on data[%d]\n", i);
          abort();
        }
      mpz_clear (n);

      mpz_init_set_si (n, data[i].n);
      MPZ_CHECK_FORMAT (n);
      if (n->_mp_size != data[i].want_size
          || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
                                   ABS (data[i].want_size)) != 0)
        {
          printf ("mpz_init_set_si wrong on data[%d]\n", i);
          abort();
        }
      mpz_clear (n);
    }
}


int
main (void)
{
  tests_start ();

  check_data ();

  tests_end ();
  exit (0);
}