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// { dg-options "-std=gnu++0x" }

// 2007-05-03  Benjamin Kosnik  <bkoz@redhat.com>

//

// Copyright (C) 2007, 2008, 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 <type_traits>

#include <testsuite_hooks.h>

enum test_enum { first_selection };

void test01()

{

  bool test __attribute__((unused)) = true;

  using std::make_signed;

  using std::is_same;

  using std::is_signed;

  // Positive tests.

  typedef make_signed<const int>::type          test2_type;

  VERIFY( (is_same<test2_type, const int>::value) );

  typedef make_signed<const unsigned int>::type         test21c_type;

  VERIFY( (is_same<test21c_type, const signed int>::value) );

  typedef make_signed<volatile unsigned int>::type      test21v_type;

  VERIFY( (is_same<test21v_type, volatile signed int>::value) );

  typedef make_signed<const volatile unsigned int>::type        test21cv_type;

  VERIFY( (is_same<test21cv_type, const volatile signed int>::value) );

  typedef make_signed<const char>::type         test22_type;

  VERIFY( (is_same<test22_type, const signed char>::value) );

#ifdef _GLIBCXX_USE_WCHAR_T

  typedef make_signed<volatile wchar_t>::type   test23_type;

  VERIFY( (is_same<test23_type, volatile signed wchar_t>::value) );

#endif

  // Chapter 48, chapter 20. Smallest rank such that new signed type same size.

  typedef make_signed<test_enum>::type          test25_type;

  VERIFY( is_signed<test25_type>::value );

  VERIFY( sizeof(test25_type) == sizeof(test_enum) );

}

int main()

{

  test01();

  return 0;

}