| // 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // 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<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; |
| } |