| // 2003-07-06 Benjamin Kosnik <bkoz@redhat.com> |
| |
| // Copyright (C) 2003 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 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. |
| |
| #include <locale> |
| #include <sstream> |
| #include <ostream> |
| #include <testsuite_hooks.h> |
| |
| class numpunct_checked : public std::numpunct<wchar_t> |
| { |
| typedef std::numpunct<wchar_t> base; |
| |
| public: |
| explicit |
| numpunct_checked(std::size_t refs = 0): base(refs) { } |
| |
| string_type |
| base_truename() const |
| { return base::do_truename(); } |
| |
| protected: |
| virtual string_type |
| do_truename() const |
| { return base::do_truename() + L"st"; } |
| }; |
| |
| // Thwart locale caching strategies that incorrectly overwrite base |
| // class data. |
| void test01() |
| { |
| using namespace std; |
| |
| bool test __attribute__((unused)) = true; |
| const wstring basestr(L"true"); |
| const wstring derivedstr(L"truest"); |
| |
| const locale loc(locale::classic(), new numpunct_checked); |
| wstringbuf sbuf; |
| wostream os(&sbuf); |
| os.setf(ios_base::boolalpha); |
| |
| // Pre-cache sanity check. |
| const numpunct<wchar_t>& np = use_facet<numpunct<wchar_t> >(loc); |
| VERIFY( np.truename() == derivedstr ); |
| |
| // Cache. |
| os.imbue(loc); |
| os << true; |
| VERIFY( sbuf.str() == derivedstr ); |
| |
| // Post-cache sanity check, make sure that base class is still fine. |
| VERIFY( np.truename() == derivedstr ); |
| const numpunct_checked& npd = static_cast<const numpunct_checked&>(np); |
| VERIFY( npd.base_truename() == basestr ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |