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// Copyright (C) 2005-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This 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 General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <cmath> // for abs
#include <cfloat> // for DBL_EPSILON
#include <sstream>
#include <limits>
#include <testsuite_hooks.h>
void
test05()
{
using namespace std;
double pi = 3.14159265358979323846;
wostringstream ostr;
ostr.precision(20);
ostr << pi;
wstring sval = ostr.str();
wistringstream istr(sval);
double d;
istr >> d;
VERIFY( abs(pi-d)/pi < DBL_EPSILON );
}
int
main()
{
test05();
return 0;
}
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