text: /* Test file for mpfr_min & mpfr_max.
  
  Copyright 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
  Contributed by the AriC and Caramel 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 3 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.LESSER.  If not, see
  http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
  51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
  
  #include <stdio.h>
  #include <stdlib.h>
  
  #include "mpfr-test.h"
  
  int
  main (void)
  {
    mpfr_t x, y, z;
  
    tests_start_mpfr ();
  
    mpfr_init (x);
    mpfr_init (y);
    mpfr_init (z);
  
    /* case x=NaN && y=NAN */
    mpfr_set_nan (x);
    mpfr_set_nan (y);
    mpfr_min (z, x, y, MPFR_RNDN);
    if (!mpfr_nan_p (z))
      {
        printf ("Error in mpfr_min (NaN, NaN)\n");
        exit (1);
      }
    mpfr_max (z, x, y, MPFR_RNDN);
    if (!mpfr_nan_p (z))
      {
        printf ("Error in mpfr_max (NaN, NaN)\n");
        exit (1);
      }
    /* case x=NaN */
    mpfr_set_nan (x);
    mpfr_set_ui (y, 0, MPFR_RNDN);
    mpfr_min (z, x, y, MPFR_RNDN);
    if (mpfr_cmp_ui (z, 0))
      {
        printf ("Error in mpfr_min (NaN, 0)\n");
        exit (1);
      }
    mpfr_min (z, y, x, MPFR_RNDN);
    if (mpfr_cmp_ui (z, 0))
      {
        printf ("Error in mpfr_min (0, NaN)\n");
        exit (1);
      }
    mpfr_max (z, x, y, MPFR_RNDN);
    if (mpfr_cmp_ui (z, 0))
      {
        printf ("Error in mpfr_max (NaN, 0)\n");
        exit (1);
      }
    mpfr_max (z, y, x, MPFR_RNDN);
    if (mpfr_cmp_ui (z, 0))
      {
        printf ("Error in mpfr_max (0, NaN)\n");
        exit (1);
      }
    /* Case x=0+ and x=0- */
    mpfr_set_ui (x, 0, MPFR_RNDN);
    mpfr_set_ui (y, 0, MPFR_RNDN); MPFR_SET_NEG(y);
    mpfr_max (z, x, y, MPFR_RNDN);
    if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z))
      {
        printf ("Error in mpfr_max (0+, 0-)\n");
        exit (1);
      }
    mpfr_min (z, x, y, MPFR_RNDN);
    if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z))
      {
        printf ("Error in mpfr_min (0+, 0-)\n");
        exit (1);
      }
    /* Case x=0- and y=0+ */
    mpfr_set_ui (x, 0, MPFR_RNDN); MPFR_SET_NEG(x);
    mpfr_set_ui (y, 0, MPFR_RNDN);
    mpfr_max (z, x, y, MPFR_RNDN);
    if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z))
      {
        printf ("Error in mpfr_max (0+, 0-)\n");
        exit (1);
      }
    mpfr_min (z, x, y, MPFR_RNDN);
    if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z))
      {
        printf ("Error in mpfr_min (0+, 0-)\n");
        exit (1);
      }
  
    /* case x=+Inf */
    mpfr_set_inf (x, 1);
    mpfr_set_si (y, -12, MPFR_RNDN);
    mpfr_min (z, x, y, MPFR_RNDN);
    if ( mpfr_cmp_si (z, -12) )
      {
        printf ("Error in mpfr_min (+Inf, -12)\n");
        exit (1);
      }
    mpfr_max (z, x, y, MPFR_RNDN);
    if ( !MPFR_IS_INF(z) || MPFR_IS_NEG(z) )
      {
        printf ("Error in mpfr_max (+Inf, 12)\n");
        exit (1);
      }
    /* case x=-Inf */
    mpfr_set_inf (x, -1);
    mpfr_set_ui (y, 12, MPFR_RNDN);
    mpfr_max (z, x, y, MPFR_RNDN);
    if ( mpfr_cmp_ui (z, 12) )
      {
        printf ("Error in mpfr_max (-Inf, 12)\n");
        exit (1);
      }
    mpfr_min (z, x, y, MPFR_RNDN);
    if ( !MPFR_IS_INF(z) || MPFR_IS_POS(z) )
      {
        printf ("Error in mpfr_min (-Inf, 12)\n");
        exit (1);
      }
  
    /* case x=17 and y=42 */
    mpfr_set_ui (x, 17, MPFR_RNDN);
    mpfr_set_ui (y, 42, MPFR_RNDN);
    mpfr_max (z, x, y, MPFR_RNDN);
    if ( mpfr_cmp_ui (z, 42) )
      {
        printf ("Error in mpfr_max (17, 42)\n");
        exit (1);
      }
    mpfr_max (z, y, x, MPFR_RNDN);
    if ( mpfr_cmp_ui (z, 42) )
      {
        printf ("Error in mpfr_max (42, 17)\n");
        exit (1);
      }
    mpfr_min (z, y, x, MPFR_RNDN);
    if ( mpfr_cmp_ui (z, 17) )
      {
        printf ("Error in mpfr_min (42, 17)\n");
        exit (1);
      }
  
    mpfr_clear (x);
    mpfr_clear (y);
    mpfr_clear (z);
  
    tests_end_mpfr ();
    return 0;
  }
  