// 2008-10-31  Paolo Carlini  <paolo.carlini@oracle.com>

// Copyright (C) 2008-2017 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<char>
{
  std::string do_truename() const { return "a"; }
  std::string do_falsename() const { return "abb"; }
};

struct Punct2: std::numpunct<char>
{
  std::string do_truename() const { return "1"; }
  std::string do_falsename() const { return "0"; }
};

struct Punct3: std::numpunct<char>
{
  std::string do_truename() const { return ""; }
  std::string do_falsename() const { return ""; }
};

struct Punct4: std::numpunct<char>
{
  std::string do_truename() const { return "one"; }
  std::string do_falsename() const { return "two"; }
};

// libstdc++/37958
void test01()
{
  using namespace std;
  typedef istreambuf_iterator<char> iterator_type;

  istringstream iss0, iss1, iss2, iss3, iss4;
  iss1.imbue(locale(iss1.getloc(), new Punct1));
  iss2.imbue(locale(iss2.getloc(), new Punct2));
  iss3.imbue(locale(iss3.getloc(), new Punct3));
  iss4.imbue(locale(iss4.getloc(), new Punct4));
  const num_get<char>& ng0 = use_facet<num_get<char> >(iss0.getloc());
  const num_get<char>& ng1 = use_facet<num_get<char> >(iss1.getloc());
  const num_get<char>& ng2 = use_facet<num_get<char> >(iss2.getloc());
  const num_get<char>& ng3 = use_facet<num_get<char> >(iss3.getloc());
  const num_get<char>& ng4 = use_facet<num_get<char> >(iss4.getloc());

  ios_base::iostate err = ios_base::goodbit;
  iterator_type end;
  bool b0 = false;
  bool b1 = false;
  bool b2 = false;
  bool b3 = true;
  bool b4 = false;

  iss0.str("true");
  iss0.setf(ios_base::boolalpha);
  err = ios_base::goodbit;
  end = ng0.get(iss0.rdbuf(), 0, iss0, err, b0);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b0 == true );

  iss0.str("false");
  iss0.clear();
  err = ios_base::goodbit;
  end = ng0.get(iss0.rdbuf(), 0, iss0, err, b0);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b0 == false );

  iss1.str("a");
  iss1.setf(ios_base::boolalpha);
  err = ios_base::goodbit;
  end = ng1.get(iss1.rdbuf(), 0, iss1, err, b1);
  VERIFY( err == ios_base::eofbit );
  VERIFY( b1 == true );

  iss1.str("abb");
  iss1.clear();
  err = ios_base::goodbit;
  end = ng1.get(iss1.rdbuf(), 0, iss1, err, b1);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b1 == false );

  iss1.str("abc");
  iss1.clear();
  err = ios_base::goodbit;
  end = ng1.get(iss1.rdbuf(), 0, iss1, err, b1);
  VERIFY( err == ios_base::failbit );
  VERIFY( b1 == false );
  VERIFY( *end == 'c' );

  iss1.str("ab");
  iss1.clear();
  b1 = true;
  err = ios_base::goodbit;
  end = ng1.get(iss1.rdbuf(), 0, iss1, err, b1);
  VERIFY( err == (ios_base::failbit | ios_base::eofbit) );
  VERIFY( b1 == false );

  iss2.str("1");
  iss2.setf(ios_base::boolalpha);
  err = ios_base::goodbit;
  end = ng2.get(iss2.rdbuf(), 0, iss2, err, b2);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b2 == true );

  iss2.str("0");
  iss2.clear();
  err = ios_base::goodbit;
  end = ng2.get(iss2.rdbuf(), 0, iss2, err, b2);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b2 == false );

  iss2.str("2");
  iss2.clear();
  b2 = true;
  err = ios_base::goodbit;
  end = ng2.get(iss2.rdbuf(), 0, iss2, err, b2);
  VERIFY( err == ios_base::failbit );
  VERIFY( b2 == false );
  VERIFY( *end == '2' );

  iss3.str("blah");
  iss3.setf(ios_base::boolalpha);
  err = ios_base::goodbit;
  end = ng3.get(iss3.rdbuf(), 0, iss3, err, b3);
  VERIFY( err == ios_base::failbit );
  VERIFY( b3 == false );
  VERIFY( *end == 'b' );

  iss3.str("");
  iss3.clear();
  b3 = true;
  err = ios_base::goodbit;
  end = ng3.get(iss3.rdbuf(), 0, iss3, err, b3);
  VERIFY( err == ios_base::failbit );
  VERIFY( b3 == false );

  iss4.str("one");
  iss4.setf(ios_base::boolalpha);
  err = ios_base::goodbit;
  end = ng4.get(iss4.rdbuf(), 0, iss4, err, b4);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b4 == true );

  iss4.str("two");
  iss4.clear();
  err = ios_base::goodbit;
  end = ng4.get(iss4.rdbuf(), 0, iss4, err, b4);
  VERIFY( err == ios_base::goodbit );
  VERIFY( b4 == false );

  iss4.str("three");
  iss4.clear();
  b4 = true;
  err = ios_base::goodbit;
  end = ng4.get(iss4.rdbuf(), 0, iss4, err, b4);
  VERIFY( err == ios_base::failbit );
  VERIFY( b4 == false );
  VERIFY( *end == 'h' );

  iss4.str("on");
  iss4.clear();
  b4 = true;
  err = ios_base::goodbit;
  end = ng4.get(iss4.rdbuf(), 0, iss4, err, b4);
  VERIFY( err == (ios_base::failbit | ios_base::eofbit) );
  VERIFY( b4 == false );
}

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