[gcc] GCC 4.5.0=>4.5.1

gcc/mpfr/tests/tset_z.c

-/* Test file for mpfr_set_z.
-
-Copyright 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-Contributed by the Arenaire and Cacao projects, INRIA.
-
-This file is part of the GNU MPFR Library.
-
-The GNU MPFR 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 2.1 of the License, or (at your
-option) any later version.
-
-The GNU MPFR 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 MPFR Library; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-MA 02110-1301, USA. */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-
-#include "mpfr-test.h"
-
-static void check0(void)
-{
-  mpz_t y;
-  mpfr_t x;
-  int inexact, r;
-
-  /* Check for +0 */
-  mpfr_init (x);
-  mpz_init (y);
-  mpz_set_si (y, 0);
-  for(r = 0; r < GMP_RND_MAX; r++)
-    {
-      inexact = mpfr_set_z (x, y, (mp_rnd_t) r);
-      if (!MPFR_IS_ZERO(x) || !MPFR_IS_POS(x) || inexact)
-        {
-          printf("mpfr_set_z(x,0) failed for %s\n",
-                 mpfr_print_rnd_mode ((mp_rnd_t) r));
-          exit(1);
-        }
-    }
-  mpfr_clear(x);
-  mpz_clear(y);
-}
-
-/* FIXME: It'd be better to examine the actual data in an mpfr_t to see that
-   it's as expected.  Comparing mpfr_set_z with mpfr_cmp or against
-   mpfr_get_si is a rather indirect test of a low level routine.  */
-
-static void
-check (long i, mp_rnd_t rnd)
-{
-  mpfr_t f;
-  mpz_t z;
-
-  mpfr_init2 (f, 8 * sizeof(long));
-  mpz_init (z);
-  mpz_set_ui (z, i);
-  mpfr_set_z (f, z, rnd);
-  if (mpfr_get_si (f, GMP_RNDZ) != i)
-    {
-      printf ("Error in mpfr_set_z for i=%ld rnd_mode=%d\n", i, rnd);
-      exit (1);
-    }
-  mpfr_clear (f);
-  mpz_clear (z);
-}
-
-static void
-check_large (void)
-{
-  mpz_t z;
-  mpfr_t x, y;
-  mp_exp_t emax, emin;
-
-  mpz_init (z);
-  mpfr_init2 (x, 160);
-  mpfr_init2 (y, 160);
-
-  mpz_set_str (z, "77031627725494291259359895954016675357279104942148788042", 10);
-  mpfr_set_z (x, z, GMP_RNDN);
-  mpfr_set_str_binary (y, "0.1100100100001111110110101010001000100001011010001100001000110100110001001100011001100010100010111000000011011100000111001101000100101001000000100100111000001001E186");
-  if (mpfr_cmp (x, y))
-    {
-      printf ("Error in mpfr_set_z on large input\n");
-      exit (1);
-    }
-
-  /* check overflow */
-  emax = mpfr_get_emax ();
-  set_emax (2);
-  mpz_set_str (z, "7", 10);
-  mpfr_set_z (x, z, GMP_RNDU);
-  MPFR_ASSERTN(mpfr_inf_p (x) && mpfr_sgn (x) > 0);
-  set_emax (3);
-  mpfr_set_prec (x, 2);
-  mpz_set_str (z, "7", 10);
-  mpfr_set_z (x, z, GMP_RNDU);
-  MPFR_ASSERTN(mpfr_inf_p (x) && mpfr_sgn (x) > 0);
-  set_emax (emax);
-
-  /* check underflow */
-  emin = mpfr_get_emin ();
-  set_emin (3);
-  mpz_set_str (z, "1", 10);
-  mpfr_set_z (x, z, GMP_RNDZ);
-  MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS(x));
-  set_emin (2);
-  mpfr_set_z (x, z, GMP_RNDN);
-  MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS(x));
-  set_emin (emin);
-
-  mpz_clear (z);
-
-  mpfr_clear (x);
-  mpfr_clear (y);
-}
-
-int
-main (int argc, char *argv[])
-{
-  long j;
-
-  tests_start_mpfr ();
-
-  check_large ();
-  check (0, GMP_RNDN);
-  for (j = 0; j < 200000; j++)
-    check (randlimb () & LONG_MAX, RND_RAND ());
-  check0 ();
-
-  tests_end_mpfr ();
-
-  return 0;
-}