// Copyright (C) 2003-2021 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/>.


#include <locale>
#include <algorithm>
#include <cstddef>
#include <testsuite_hooks.h>

// libstdc++/11740
void test01()
{
  using namespace std;
  
  const wchar_t str[] =
    L"Is this the real life?\n"
    L"Is this just fantasy?\n"
    L"Caught in a landslide\n"
    L"No escape from reality\n"
    L"Open your eyes\n"
    L"Look up to the skies and see\n"
    L"I'm just a poor boy\n"
    L"I need no sympathy\n"
    L"Because I'm easy come, easy go\n"
    L"Little high, little low"
    L"Anyway the wind blows\n"
    L"Doesn't really matter to me\n"
    L"To me\n"
    L"                      -- Queen\n";

  const size_t len = sizeof(str) / sizeof(str[0]) - 1;
  
  const ctype_base::mask masks[] = {	
    ctype_base::space, ctype_base::print, ctype_base::cntrl,
    ctype_base::upper, ctype_base::lower, ctype_base::alpha,
    ctype_base::digit, ctype_base::punct, ctype_base::xdigit,
    ctype_base::alnum, ctype_base::graph
  };

  const size_t num_masks = sizeof(masks) / sizeof(masks[0]);
  
  locale loc;
  const ctype<wchar_t>& ct = use_facet<ctype<wchar_t> >(loc);
  
  for (size_t i = 0; i < len; ++i)
    {
      for (size_t j = 0; j < num_masks; ++j)
	{
	  for (size_t k = 0; k < num_masks; ++k)
	    {
	      bool r1 = ct.is(masks[j] | masks[k], str[i]);
	      bool r2 = ct.is(masks[j], str[i]);
	      bool r3 = ct.is(masks[k], str[i]);
	      
	      VERIFY( r1 == (r2 || r3) );
	    }
	}
    }
}

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