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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / tr1 / 4_metaprogramming / is_empty / value.cc

// 2005-01-28  Paolo Carlini  <pcarlini@suse.de>
//
// Copyright (C) 2005-2024 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/>.

// 4.5.3 Type properties

#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>

class EmptyClassOne
{ typedef int type; };

class EmptyClassTwo
{ static int data; };

class EmptyClassThree
{ int f(); };

class NonEmptyClassOne
{ int data; };

class NonEmptyClassTwo
{
  virtual int f();
  virtual ~NonEmptyClassTwo();
};

void test01()
{
  using std::tr1::is_empty;
  using namespace __gnu_test;

  // Positive tests.
  VERIFY( (test_category<is_empty, ClassType>(true)) );
  VERIFY( (test_category<is_empty, EmptyClassOne>(true)) );
  VERIFY( (test_category<is_empty, EmptyClassTwo>(true)) );
  VERIFY( (test_category<is_empty, EmptyClassThree>(true)) );

  // Negative tests.
  VERIFY( (test_category<is_empty, void>(false)) );
  VERIFY( (test_category<is_empty, float>(false)) );
  VERIFY( (test_category<is_empty, int[4]>(false)) );
  VERIFY( (test_category<is_empty, int*>(false)) );
  VERIFY( (test_category<is_empty, int&>(false)) );
  VERIFY( (test_category<is_empty, int (ClassType::*)>(false)) );
  VERIFY( (test_category<is_empty, EnumType>(false)) );
  VERIFY( (test_category<is_empty, int (int)>(false)) );

  VERIFY( (test_category<is_empty, AbstractClass>(false)) );
  VERIFY( (test_category<is_empty, NonEmptyClassOne>(false)) );
  VERIFY( (test_category<is_empty, NonEmptyClassTwo>(false)) );
}

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