libstdc++-v3/testsuite/22_locale/num_get/get/wchar_t/39168.cc

// Copyright (C) 2009-2014 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/>.

// 22.2.2.1.1  num_get members

#include <sstream>
#include <locale>
#include <climits>
#include <testsuite_hooks.h>

class my_numpunct: public std::numpunct<wchar_t>
{
protected:
  std::string do_grouping() const { return std::string(1, CHAR_MAX); }
};

// libstdc++/39168
void test01()
{
  bool test __attribute__((unused)) = true;
  using namespace std;
  typedef istreambuf_iterator<wchar_t> iterator_type;

  wistringstream iss;
  iss.imbue(locale(iss.getloc(), new my_numpunct));
  const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(iss.getloc());

  long double l = -1;
  ios_base::iostate err = ios_base::goodbit;

  iss.str(L"123,456");
  iterator_type end = ng.get(iss.rdbuf(), 0, iss, err, l);
  VERIFY( err == ios_base::goodbit );
  VERIFY( l == 123 );
  VERIFY( *end == L',' );
}

int main()
{
  test01();
  return 0;
}