/* Test for correct rounding of negative floating-point numbers by scanf

   (bug 23280).

   Copyright (C) 2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C 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 C 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 C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <fenv.h>

#include <stdio.h>

#include <stdlib.h>

#include <support/check.h>

static int

do_test (void)

{

#ifdef FE_DOWNWARD

  if (fesetround (FE_DOWNWARD) == 0)

    {

      double a = strtod ("-0.1", NULL);

      double b = 0;

      int r = sscanf ("-0.1", "%lf", &b);

      TEST_VERIFY (r == 1);

      TEST_VERIFY (a == b);

    }

#endif

#ifdef FE_UPWARD

  if (fesetround (FE_UPWARD) == 0)

    {

      double a = strtod ("-0.1", NULL);

      double b = 0;

      int r = sscanf ("-0.1", "%lf", &b);

      TEST_VERIFY (r == 1);

      TEST_VERIFY (a == b);

    }

#endif

  return 0;

}

#include <support/test-driver.c>