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// 2003-07-06 Benjamin Kosnik <bkoz@redhat.com>
// Copyright (C) 2003, 2009 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/>.
#include <locale>
#include <sstream>
#include <ostream>
#include <testsuite_hooks.h>
class numpunct_checked : public std::numpunct<char>
{
typedef std::numpunct<char> 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() + "st"; }
};
// Thwart locale caching strategies that incorrectly overwrite base
// class data.
void test01()
{
using namespace std;
bool test __attribute__((unused)) = true;
const string basestr("true");
const string derivedstr("truest");
const locale loc(locale::classic(), new numpunct_checked);
stringbuf sbuf;
ostream os(&sbuf);
os.setf(ios_base::boolalpha);
// Pre-cache sanity check.
const numpunct<char>& np = use_facet<numpunct<char> >(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;
}
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