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// 1999-11-15 Kevin Ediger  <kediger@licor.com>

// test the floating point inserters (facet num_put)

// Copyright (C) 1999, 2002, 2003, 2005, 2009 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;

  bool test __attribute__((unused)) = true;

  double pi = 3.14159265358979323846;

  ostringstream ostr;

  ostr.precision(20);

  ostr << pi;

  string sval = ostr.str();

  istringstream istr (sval);

  double d;

  istr >> d;

  VERIFY( abs(pi-d)/pi < DBL_EPSILON );

}

int

main()

{

  test05();

  return 0;

}