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type_traits: Implement extent. 

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

	* include/tr1/type_traits: Implement extent.
	* testsuite/tr1/4_metaprogramming/type_properties/extent/
	extent.cc: New.
	* testsuite/tr1/4_metaprogramming/type_properties/extent/
	typedefs.cc: Likewise.

From-SVN: r92054
This commit is contained in:
Paolo Carlini 2004-12-12 18:07:41 +00:00 committed by Paolo Carlini
parent ebb4ec776a
commit 973cb10b2d
4 changed files with 116 additions and 2 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2004-12-12 Paolo Carlini <pcarlini@suse.de>
* include/tr1/type_traits: Implement extent.
* testsuite/tr1/4_metaprogramming/type_properties/extent/
extent.cc: New.
* testsuite/tr1/4_metaprogramming/type_properties/extent/
typedefs.cc: Likewise.
2004-12-12 Paolo Carlini <pcarlini@suse.de>
* include/tr1/type_traits: Implement is_pointer, remove_pointer,

17
libstdc++-v3/include/tr1/type_traits
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@ -244,8 +244,21 @@ namespace tr1
struct rank<_Tp[]>
: public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
template<typename _Tp, unsigned _Uint = 0>
struct extent;
template<typename, unsigned = 0>
struct extent
: integral_constant<std::size_t, 0> { };
template<typename _Tp, unsigned _Uint, std::size_t _Size>
struct extent<_Tp[_Size], _Uint>
: integral_constant<std::size_t,
_Uint == 0 ? _Size : extent<_Tp, _Uint - 1>::value>
{ };
template<typename _Tp, unsigned _Uint>
struct extent<_Tp[], _Uint>
: integral_constant<std::size_t,
_Uint == 0 ? 0 : extent<_Tp, _Uint - 1>::value>
{ };
/// @brief relationships between types [4.6].
template<typename, typename>

57
libstdc++-v3/testsuite/tr1/4_metaprogramming/type_properties/extent/extent.cc Normal file
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@ -0,0 +1,57 @@
// 2004-12-12 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.
// 4.5.3 Type properties
#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
void test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::extent;
using namespace __gnu_test;
VERIFY( (test_property<extent, int>(0)) );
VERIFY( (test_property<extent, int[2]>(2)) );
VERIFY( (test_property<extent, int[2][4]>(2)) );
VERIFY( (test_property<extent, int[][4]>(0)) );
VERIFY( (extent<int, 1>::value == 0) );
VERIFY( (extent<int[2], 1>::value == 0) );
VERIFY( (extent<int[2][4], 1>::value == 4) );
VERIFY( (extent<int[][4], 1>::value == 4) );
VERIFY( (extent<int[10][4][6][8][12][2], 4>::value == 12) );
VERIFY( (test_property<extent, ClassType>(0)) );
VERIFY( (test_property<extent, ClassType[2]>(2)) );
VERIFY( (test_property<extent, ClassType[2][4]>(2)) );
VERIFY( (test_property<extent, ClassType[][4]>(0)) );
VERIFY( (extent<ClassType, 1>::value == 0) );
VERIFY( (extent<ClassType[2], 1>::value == 0) );
VERIFY( (extent<ClassType[2][4], 1>::value == 4) );
VERIFY( (extent<ClassType[][4], 1>::value == 4) );
VERIFY( (extent<ClassType[10][4][6][8][12][2], 4>::value == 12) );
}
int main()
{
test01();
return 0;
}

36
libstdc++-v3/testsuite/tr1/4_metaprogramming/type_properties/extent/typedefs.cc Normal file
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@ -0,0 +1,36 @@
// 2004-12-11 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::extent<int, 1> 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;
}