gcc/gmp/tests/mpf/t-int_p.c

/* Test mpf_integer_p.

Copyright 2001 Free Software Foundation, Inc.

This file is part of the GNU MP Library.

The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser 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 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 Lesser General Public
License for more details.

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

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


void
one (mpf_srcptr f, int want)
{
  int  got;
  got = mpf_integer_p (f);
  if (got != want)
    {
      printf ("mpf_integer_p got %d want %d\n", got, want);
      mpf_trace (" f", f);
      abort ();
    }
}

void
all (mpf_ptr f, int want)
{
  one (f, want);
  mpf_neg (f, f);
  one (f, want);
}

int
main (void)
{
  mpf_t  f;

  tests_start ();
  mpf_init2 (f, 200L);

  mpf_set_ui (f, 0L);
  one (f, 1);

  mpf_set_ui (f, 1L);
  all (f, 1);

  mpf_set_ui (f, 1L);
  mpf_div_2exp (f, f, 1L);
  all (f, 0);

  mpf_set_ui (f, 1L);
  mpf_div_2exp (f, f, 5000L);
  all (f, 0);

  mpf_set_ui (f, 1L);
  mpf_mul_2exp (f, f, 5000L);
  all (f, 1);

  mpf_set_str (f, "0.5", 10);
  all (f, 0);

  mpf_set_ui (f, 1L);
  mpf_div_ui (f, f, 3L);
  all (f, 0);

  mpf_clear (f);
  tests_end ();
  exit (0);
}