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// 2003-05-27 Brendan Kehoe  <brendan@zen.org>

// Copyright (C) 2003, 2004 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// $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<char> {

public:

  int do_frac_digits() const { return 3; }

};

int main()

{

  std::istringstream liffey;

  std::string coins;

  std::locale eire(std::locale::classic(), new dublin);

  liffey.imbue(eire);

  const std::money_get<char>& greed

    = std::use_facet<std::money_get<char> >(liffey.getloc());

  typedef std::istreambuf_iterator<char> 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("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("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("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("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("12");

  greed.get(is, end, false, liffey, err01, coins);

  if ( err01 & std::ios_base::failbit )

    fails |= 0x10;

  return fails;

}