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// 2003-05-27 Brendan Kehoe  <brendan@zen.org>
 
// Copyright (C) 2003, 2004, 2009 Free Software Foundation
//
// 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/>.
 
// $22.2.6.3/3
// The number of digits required after the decimal point (if any) is exactly
// the value returned by frac_digits().
 
#include <locale>
#include <sstream>
 
class dublin : public std::moneypunct<wchar_t> {
public:
  int do_frac_digits() const { return 3; }
};
 
int main()
{
  std::wistringstream liffey;
  std::wstring coins;
 
  std::locale eire(std::locale::classic(), new dublin);
  liffey.imbue(eire);
 
  const std::money_get<wchar_t>& greed
    = std::use_facet<std::money_get<wchar_t> >(liffey.getloc());
 
  typedef std::istreambuf_iterator<wchar_t> iterator_type;
  iterator_type is(liffey);
  iterator_type end;
 
  std::ios_base::iostate err01 = std::ios_base::goodbit;
 
  int fails = 0;
 
  // Feed it 1 digit too many, which should fail.
  liffey.str(L"12.3456");
  greed.get(is, end, false, liffey, err01, coins);
  if (! (err01 & std::ios_base::failbit ))
    fails |= 0x01;
 
  err01 = std::ios_base::goodbit;
 
  // Feed it exactly what it wants, which should succeed.
  liffey.str(L"12.345");
  greed.get(is, end, false, liffey, err01, coins);
  if ( err01 & std::ios_base::failbit )
    fails |= 0x02;
 
  err01 = std::ios_base::goodbit;
 
  // Feed it 1 digit too few, which should fail.
  liffey.str(L"12.34");
  greed.get(is, end, false, liffey, err01, coins);
  if (! ( err01 & std::ios_base::failbit ))
    fails |= 0x04;
 
  err01 = std::ios_base::goodbit;
 
  // Feed it only a decimal-point, which should fail.
  liffey.str(L"12.");
  greed.get(is, end, false, liffey, err01, coins);
  if (! (err01 & std::ios_base::failbit ))
    fails |= 0x08;
 
  err01 = std::ios_base::goodbit;
 
  // Feed it no decimal-point at all, which should succeed.
  liffey.str(L"12");
  greed.get(is, end, false, liffey, err01, coins);
  if ( err01 & std::ios_base::failbit )
    fails |= 0x10;
 
  return fails;
}