+2005-01-11 Paolo Carlini <pcarlini@suse.de>
+
+ * include/tr1/type_traits: Implement alignment_of and aligned_storage.
+ * testsuite/tr1/4_metaprogramming/other_transformations/
+ aligned_storage/aligned_storage.cc: New.
+ * testsuite/tr1/4_metaprogramming/other_transformations/
+ aligned_storage/typedefs.cc: Likewise.
+ * testsuite/tr1/4_metaprogramming/type_properties/
+ alignment_of/alignment_of.cc: Likewise.
+ * testsuite/tr1/4_metaprogramming/type_properties/
+ alignment_of/typedefs.cc: Likewise.
+
2005-01-10 Paolo Carlini <pcarlini@suse.de>
* Makefile.in: Regenerate.
// TR1 type_traits -*- C++ -*-
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005 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
// template<typename>
// struct is_member_function_pointer
// : public false_type { };
- // _DEFINE_SPEC(2, is_member_function_pointer, _Tp _Cp::*,
- // is_function<_Tp>::value)
-
- // Ugly, temporary workaround for member functions with up to 15 arguments.
+ // _DEFINE_SPEC(2, is_member_function_pointer, _Tp _Cp::*,
+ // is_function<_Tp>::value)
+ //
+ // Temporary workaround for member functions with up to 15 arguments:
template<typename>
struct __is_mfp_helper
{ static const bool __value = false; };
template<typename>
struct has_virtual_destructor
: public false_type { };
+
+ template<typename _Tp>
+ struct alignment_of
+ : public integral_constant<std::size_t, __alignof__(_Tp)> { };
template<typename>
struct rank
{ typedef typename remove_reference<_Tp>::type* type; };
/// @brief other transformations [4.8].
+
+ // Due to c++/19163 and c++/17743, for the time being we cannot use
+ // the correct, neat implementation :-(
+ //
+ // template<std::size_t _Len, std::size_t _Align>
+ // struct aligned_storage
+ // { typedef char type[_Len] __attribute__((aligned(_Align))); }
+ //
+ // Temporary workaround, useful for Align up to 32:
+ template<std::size_t, std::size_t>
+ struct aligned_storage { };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 1>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(1)));
+ };
+ };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 2>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(2)));
+ };
+ };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 4>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(4)));
+ };
+ };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 8>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(8)));
+ };
+ };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 16>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(16)));
+ };
+ };
+
+ template<std::size_t _Len>
+ struct aligned_storage<_Len, 32>
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ char __align __attribute__((aligned(32)));
+ };
+ };
#undef _DEFINE_SPEC_0_HELPER
#undef _DEFINE_SPEC_1_HELPER
--- /dev/null
+// 2005-01-11 Paolo Carlini <pcarlini@suse.de>
+//
+// Copyright (C) 2005 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.
+
+// 4.8 Other transformations
+
+#include <tr1/type_traits>
+#include <testsuite_hooks.h>
+#include <testsuite_tr1.h>
+
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+ using std::tr1::aligned_storage;
+ using std::tr1::alignment_of;
+ using namespace __gnu_test;
+
+ const std::size_t align_c = alignment_of<char>::value;
+ VERIFY( (sizeof(aligned_storage<4, align_c>::type) >= 4) );
+ VERIFY( (__alignof__(aligned_storage<4, align_c>::type) == align_c) );
+
+ const std::size_t align_s = alignment_of<short>::value;
+ VERIFY( (sizeof(aligned_storage<1, align_s>::type) >= 1) );
+ VERIFY( (__alignof__(aligned_storage<1, align_s>::type) == align_s) );
+
+ const std::size_t align_i = alignment_of<int>::value;
+ VERIFY( (sizeof(aligned_storage<7, align_i>::type) >= 7) );
+ VERIFY( (__alignof__(aligned_storage<7, align_i>::type) == align_i) );
+
+ const std::size_t align_d = alignment_of<double>::value;
+ VERIFY( (sizeof(aligned_storage<2, align_d>::type) >= 2) );
+ VERIFY( (__alignof__(aligned_storage<2, align_d>::type) == align_d) );
+
+ const std::size_t align_ai = alignment_of<int[4]>::value;
+ VERIFY( (sizeof(aligned_storage<20, align_ai>::type) >= 20) );
+ VERIFY( (__alignof__(aligned_storage<20, align_ai>::type) == align_ai) );
+
+ const std::size_t align_ct = alignment_of<ClassType>::value;
+ VERIFY( (sizeof(aligned_storage<11, align_ct>::type) >= 11) );
+ VERIFY( (__alignof__(aligned_storage<11, align_ct>::type) == align_ct) );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2005-01-11 Paolo Carlini <pcarlini@suse.de>
+//
+// Copyright (C) 2005 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::aligned_storage<1, 1> test_type;
+ typedef test_type::type type;
+}
--- /dev/null
+// 2005-01-11 Paolo Carlini <pcarlini@suse.de>
+//
+// Copyright (C) 2005 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::alignment_of;
+ using namespace __gnu_test;
+
+ VERIFY( (test_property<alignment_of, char>(__alignof__(char))) );
+ VERIFY( (test_property<alignment_of, short>(__alignof__(short))) );
+ VERIFY( (test_property<alignment_of, int>(__alignof__(int))) );
+ VERIFY( (test_property<alignment_of, double>(__alignof__(double))) );
+ VERIFY( (test_property<alignment_of, int[4]>(__alignof__(int[4]))) );
+ VERIFY( (test_property<alignment_of, ClassType>(__alignof__(ClassType))) );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2005-01-11 Paolo Carlini <pcarlini@suse.de>
+//
+// Copyright (C) 2005 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::alignment_of<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;
+}
projects / platform / upstream / linaro-gcc.git / commitdiff