/* Test strtod functions handle signs of NaNs (bug 23007).

   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 <math.h>

#include <stdlib.h>

#include <wchar.h>

#include <stdlib/tst-strtod.h>

#include <support/check.h>

#define CONCAT_(X, Y) X ## Y

#define CONCAT(X, Y) CONCAT_ (X, Y)

#define FNX(FN) CONCAT (FNPFX, FN)

#define TEST_STRTOD(FSUF, FTYPE, FTOSTR, LSUF, CSUF)	\

static int						\

test_strto ## FSUF (void)				\

{							\

  FTYPE val_pos = FNX (FSUF) (L_("nan"), NULL);		\

  FTYPE copy_pos = copysign ## CSUF (1, val_pos);	\

  TEST_VERIFY (isnan (val_pos) && copy_pos == 1);	\

  FTYPE val_neg = FNX (FSUF) (L_("-nan"), NULL);	\

  FTYPE copy_neg = copysign ## CSUF (1, val_neg);	\

  TEST_VERIFY (isnan (val_neg) && copy_neg == -1);	\

  return 0;						\

}

GEN_TEST_STRTOD_FOREACH (TEST_STRTOD)

static int

do_test (void)

{

  return STRTOD_TEST_FOREACH (test_strto);

}

#include <support/test-driver.c>