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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 22_locale / num_get / get / wchar_t / 15.cc

// 2004-03-01  Paolo Carlini  <pcarlini@suse.de>

// Copyright (C) 2004-2021 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 <locale>
#include <sstream>
#include <testsuite_hooks.h>

struct Punct1: std::numpunct<wchar_t>
{
  std::string do_grouping() const { return "\1"; }
  wchar_t do_thousands_sep() const { return L'+'; }
};

struct Punct2: std::numpunct<wchar_t>
{
  wchar_t do_decimal_point() const { return L'-'; }
};

// http://gcc.gnu.org/ml/libstdc++/2003-12/msg00201.html
void test01()
{
  using namespace std;
  typedef istreambuf_iterator<wchar_t> iterator_type;

  wistringstream iss1, iss2;
  iss1.imbue(locale(iss1.getloc(), new Punct1));
  iss2.imbue(locale(iss2.getloc(), new Punct2));
  const num_get<wchar_t>& ng1 = use_facet<num_get<wchar_t> >(iss1.getloc()); 
  const num_get<wchar_t>& ng2 = use_facet<num_get<wchar_t> >(iss2.getloc()); 

  ios_base::iostate err = ios_base::goodbit;
  iterator_type end;
  double d = 1.0;
  
  iss1.str(L"1e+2");
  err = ios_base::goodbit;
  end = ng1.get(iss1.rdbuf(), 0, iss1, err, d);
  VERIFY( err == ios_base::failbit );
  VERIFY( *end == L'+' );
  VERIFY( d == 0.0 );

  iss2.str(L"3e-1");
  err = ios_base::goodbit;
  d = 1.0;
  end = ng2.get(iss2.rdbuf(), 0, iss2, err, d);
  VERIFY( err == ios_base::failbit );
  VERIFY( *end == L'-' );
  VERIFY( d == 0.0 );
}

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