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type_traits: Implement remove_const, remove_volatile, and remove_cv.

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2004-12-10  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/type_traits: Implement remove_const, remove_volatile,
	and remove_cv.
	* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
	remove_const.cc: New.
	* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
	remove_cv.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
	remove_volatile.cc: Likewise.

	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_array/is_array.cc: Slightly tweak consistently, remove typedefs,
	add a few tests.

From-SVN: r91990
This commit is contained in:
Paolo Carlini 2004-12-10 11:45:13 +00:00 committed by Paolo Carlini
parent 72b4c734a3
commit d5f60056f0
6 changed files with 194 additions and 16 deletions
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15
libstdc++-v3/ChangeLog
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@ -1,3 +1,18 @@
2004-12-10 Paolo Carlini <pcarlini@suse.de>
* include/tr1/type_traits: Implement remove_const, remove_volatile,
and remove_cv.
* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
remove_const.cc: New.
* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
remove_cv.cc: Likewise.
* testsuite/tr1/4_metaprogramming/const_volatile_modifications/
remove_volatile.cc: Likewise.
* testsuite/tr1/4_metaprogramming/primary_type_categories/
is_array/is_array.cc: Slightly tweak consistently, remove typedefs,
add a few tests.
2004-12-09 Paolo Carlini <pcarlini@suse.de>
* include/tr1/type_traits: Implement remove_extent and

28
libstdc++-v3/include/tr1/type_traits
View File

@ -256,13 +256,35 @@ namespace tr1
/// @brief const-volatile modifications [4.7.1].
template<typename _Tp>
struct remove_const;
struct remove_const
{
typedef _Tp type;
};
template<typename _Tp>
struct remove_const<_Tp const>
{
typedef _Tp type;
};
template<typename _Tp>
struct remove_volatile;
struct remove_volatile
{
typedef _Tp type;
};
template<typename _Tp>
struct remove_volatile<_Tp volatile>
{
typedef _Tp type;
};
template<typename _Tp>
struct remove_cv;
struct remove_cv
{
typedef typename
remove_const<typename remove_volatile<_Tp>::type>::type type;
};
template<typename _Tp>
struct add_const;

47
libstdc++-v3/testsuite/tr1/4_metaprogramming/const_volatile_modifications/remove_const.cc Normal file
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@ -0,0 +1,47 @@
// 2004-12-10 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.
// 4.7.1 Const-volatile modifications
#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
void test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::remove_const;
using std::tr1::is_same;
using namespace __gnu_test;
VERIFY( (is_same<remove_const<const volatile int>::type,
volatile int>::value) );
VERIFY( (is_same<remove_const<const int*>::type, const int*>::value) );
VERIFY( (is_same<remove_const<const volatile ClassType>::type,
volatile ClassType>::value) );
VERIFY( (is_same<remove_const<const ClassType*>::type,
const ClassType*>::value) );
}
int main()
{
test01();
return 0;
}

47
libstdc++-v3/testsuite/tr1/4_metaprogramming/const_volatile_modifications/remove_cv.cc Normal file
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@ -0,0 +1,47 @@
// 2004-12-10 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.
// 4.7.1 Const-volatile modifications
#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
void test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::remove_cv;
using std::tr1::is_same;
using namespace __gnu_test;
VERIFY( (is_same<remove_cv<const volatile int>::type, int>::value) );
VERIFY( (is_same<remove_cv<const volatile int*>::type,
const volatile int*>::value) );
VERIFY( (is_same<remove_cv<const volatile ClassType>::type,
ClassType>::value) );
VERIFY( (is_same<remove_cv<const volatile ClassType*>::type,
const volatile ClassType*>::value) );
}
int main()
{
test01();
return 0;
}

48
libstdc++-v3/testsuite/tr1/4_metaprogramming/const_volatile_modifications/remove_volatile.cc Normal file
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@ -0,0 +1,48 @@
// 2004-12-10 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.
// 4.7.1 Const-volatile modifications
#include <tr1/type_traits>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
void test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::remove_volatile;
using std::tr1::is_same;
using namespace __gnu_test;
VERIFY( (is_same<remove_volatile<const volatile int>::type,
const int>::value) );
VERIFY( (is_same<remove_volatile<volatile int*>::type,
volatile int*>::value) );
VERIFY( (is_same<remove_volatile<const volatile ClassType>::type,
const ClassType>::value) );
VERIFY( (is_same<remove_volatile<volatile ClassType*>::type,
volatile ClassType*>::value) );
}
int main()
{
test01();
return 0;
}

25
libstdc++-v3/testsuite/tr1/4_metaprogramming/primary_type_categories/is_array/is_array.cc
View File

@ -30,19 +30,18 @@ void test01()
using std::tr1::is_array;
using namespace __gnu_test;
typedef int int_array[5];
typedef int empty_int_array[];
typedef float* pointer_array[5];
typedef float* empty_pointer_array[];
typedef ClassType ClassType_array[5];
typedef ClassType empty_ClassType_array[];
VERIFY( (test_category<is_array, int_array, true>()) );
VERIFY( (test_category<is_array, empty_int_array, true>()) );
VERIFY( (test_category<is_array, pointer_array, true>()) );
VERIFY( (test_category<is_array, empty_pointer_array, true>()) );
VERIFY( (test_category<is_array, ClassType_array, true>()) );
VERIFY( (test_category<is_array, empty_ClassType_array, true>()) );
VERIFY( (test_category<is_array, int[2], true>()) );
VERIFY( (test_category<is_array, int[], true>()) );
VERIFY( (test_category<is_array, int[2][3], true>()) );
VERIFY( (test_category<is_array, int[][3], true>()) );
VERIFY( (test_category<is_array, float*[2], true>()) );
VERIFY( (test_category<is_array, float*[], true>()) );
VERIFY( (test_category<is_array, float*[2][3], true>()) );
VERIFY( (test_category<is_array, float*[][3], true>()) );
VERIFY( (test_category<is_array, ClassType[2], true>()) );
VERIFY( (test_category<is_array, ClassType[], true>()) );
VERIFY( (test_category<is_array, ClassType[2][3], true>()) );
VERIFY( (test_category<is_array, ClassType[][3], true>()) );
// Sanity check.
VERIFY( (test_category<is_array, ClassType, false>()) );