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// 2003-05-27 Brendan Kehoe <brendan@zen.org>
// Copyright (C) 2003-2015 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/>.
// $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;
}
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