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type_traits: Implement is_reference. 

2004-12-06  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/type_traits: Implement is_reference.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_reference/is_reference.cc: New.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_reference/typedefs.cc: Likewise.

From-SVN: r91779
This commit is contained in:
Paolo Carlini 2004-12-06 15:47:05 +00:00 committed by Paolo Carlini
parent a58d74533c
commit e21cb773e5
4 changed files with 103 additions and 3 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2004-12-06 Paolo Carlini <pcarlini@suse.de>
* include/tr1/type_traits: Implement is_reference.
* testsuite/tr1/4_metaprogramming/primary_type_categories/
is_reference/is_reference.cc: New.
* testsuite/tr1/4_metaprogramming/primary_type_categories/
is_reference/typedefs.cc: Likewise.
2004-12-05 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/18837

11
libstdc++-v3/include/tr1/type_traits
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@ -22,8 +22,8 @@
* This is a TR1 C++ Library header.
*/
#ifndef _TR1_TYPE_TRAITS
#define _TR1_TYPE_TRAITS 1
#ifndef _TYPE_TRAITS
#define _TYPE_TRAITS 1
#include <bits/c++config.h>
#include <cstddef>
@ -102,8 +102,13 @@ namespace tr1
template<typename _Tp>
struct is_pointer;
template<typename>
struct is_reference
: public false_type { };
template<typename _Tp>
struct is_reference;
struct is_reference<_Tp&>
: public true_type { };
template<typename _Tp>
struct is_member_object_pointer;

51
libstdc++-v3/testsuite/tr1/4_metaprogramming/primary_type_categories/is_reference/is_reference.cc Normal file
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@ -0,0 +1,51 @@
// 2004-12-06 Paolo Carlini <pcarlini@suse.de>
//
// Copyright (C) 2004 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 4.5.1 Primary type categories
#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
class ClassType { };
void test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::is_reference;
using __gnu_test::test_category;
typedef int& int_ref;
typedef ClassType& ClassType_ref;
typedef int (&fun_ref) (int);
VERIFY( (test_category<is_reference, int_ref, true>()) );
VERIFY( (test_category<is_reference, ClassType_ref, true>()) );
VERIFY( (test_category<is_reference, fun_ref, true>()) );
// Sanity check.
VERIFY( (test_category<is_reference, ClassType, false>()) );
}
int main()
{
test01();
return 0;
}

36
libstdc++-v3/testsuite/tr1/4_metaprogramming/primary_type_categories/is_reference/typedefs.cc Normal file
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@ -0,0 +1,36 @@
// 2004-12-06 Paolo Carlini <pcarlini@suse.de>
//
// Copyright (C) 2004 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
//
// NB: This file is for testing tr1/type_traits with NO OTHER INCLUDES.
#include <tr1/type_traits>
// { dg-do compile }
void test01()
{
// Check for required typedefs
typedef std::tr1::is_reference<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;
}