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type_traits: Add is_final<> type trait for C++14. 

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	* include/std/type_traits: Add is_final<> type trait for C++14.
	* testsuite/util/testsuite_tr1.h: Add 
	* testsuite/20_util/is_final/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_final/requirements/typedefs.cc: New.
	* testsuite/20_util/is_final/value.cc: New.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust.

From-SVN: r215753
This commit is contained in:
Edward Smith-Rowland 2014-10-01 11:59:29 +00:00 committed by Edward Smith-Rowland
parent a15f7cb8b8
commit 4db7fcb9a8
6 changed files with 123 additions and 0 deletions
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12
libstdc++-v3/ChangeLog
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@ -1,3 +1,15 @@
2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net>
* include/std/type_traits: Add is_final<> type trait for C++14.
* testsuite/util/testsuite_tr1.h: Add
* testsuite/20_util/is_final/requirements/
explicit_instantiation.cc: New.
* testsuite/20_util/is_final/requirements/typedefs.cc: New.
* testsuite/20_util/is_final/value.cc: New.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust.
2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement SD-6: SG10 Feature Test Recommendations

9
libstdc++-v3/include/std/type_traits
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@ -639,6 +639,15 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
: public integral_constant<bool, __is_polymorphic(_Tp)>
{ };
#if __cplusplus >= 201402L
#define __cpp_lib_is_final 201402L
/// is_final
template<typename _Tp>
struct is_final
: public integral_constant<bool, __is_final(_Tp)>
{ };
#endif
/// is_abstract
template<typename _Tp>
struct is_abstract

29
libstdc++-v3/testsuite/20_util/is_final/requirements/explicit_instantiation.cc Normal file
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@ -0,0 +1,29 @@
// { dg-options "-std=gnu++14" }
// { dg-do compile }
// Copyright (C) 2014 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/>.
// NB: This file is for testing type_traits with NO OTHER INCLUDES.
#include <type_traits>
namespace std
{
typedef short test_type;
template struct is_final<test_type>;
}

34
libstdc++-v3/testsuite/20_util/is_final/requirements/typedefs.cc Normal file
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@ -0,0 +1,34 @@
// { dg-options "-std=gnu++14" }
// { dg-do compile }
// Copyright (C) 2014 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/>.
//
// NB: This file is for testing type_traits with NO OTHER INCLUDES.
#include <type_traits>
void test01()
{
// Check for required typedefs
typedef std::is_final<int> test_type;
typedef test_type::value_type value_type;
typedef test_type::type type;
typedef test_type::type::value_type type_value_type;
typedef test_type::type::type type_type;
}

35
libstdc++-v3/testsuite/20_util/is_final/value.cc Normal file
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@ -0,0 +1,35 @@
// { dg-options "-std=gnu++14" }
// { dg-do compile }
// Copyright (C) 2011-2014 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_tr1.h>
void test01()
{
using std::is_final;
using namespace __gnu_test;
// Positive test.
static_assert(test_category<is_final, FinalType>(true), "");
// Negative tests.
static_assert(test_category<is_final, ClassType>(false), "");
static_assert(test_category<is_final, DerivedType>(false), "");
}

4
libstdc++-v3/testsuite/util/testsuite_tr1.h
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@ -100,6 +100,10 @@ namespace __gnu_test
class DerivedType : public ClassType { };
#if __cplusplus >= 201103L
class FinalType final : public DerivedType { };
#endif
enum EnumType { e0 };
struct ConvType