mirror of git://gcc.gnu.org/git/gcc.git
type_traits: Implement is_function.
2004-12-16 Paolo Carlini <pcarlini@suse.de> * include/tr1/type_traits: Implement is_function. (struct __sfinae_types, struct __is_function_helper): New. * testsuite/tr1/4_metaprogramming/composite_type_traits/ is_object/is_object.cc: New. * testsuite/tr1/4_metaprogramming/composite_type_traits/ is_object/typedefs.cc: Likewise. * testsuite/tr1/4_metaprogramming/primary_type_categories/ is_function/is_function.cc: Likewise. * testsuite/tr1/4_metaprogramming/primary_type_categories/ is_function/typedefs.cc: Likewise. From-SVN: r92258
This commit is contained in:
Paolo Carlini
Paolo Carlini
parent
8a784e4a17
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cacd0a2ccf
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@ -1,3 +1,16 @@
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2004-12-16 Paolo Carlini <pcarlini@suse.de>
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* include/tr1/type_traits: Implement is_function.
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(struct __sfinae_types, struct __is_function_helper): New.
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* testsuite/tr1/4_metaprogramming/composite_type_traits/
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is_object/is_object.cc: New.
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* testsuite/tr1/4_metaprogramming/composite_type_traits/
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is_object/typedefs.cc: Likewise.
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* testsuite/tr1/4_metaprogramming/primary_type_categories/
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is_function/is_function.cc: Likewise.
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* testsuite/tr1/4_metaprogramming/primary_type_categories/
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is_function/typedefs.cc: Likewise.
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2004-12-13 Paolo Carlini <pcarlini@suse.de>
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2004-12-13 Paolo Carlini <pcarlini@suse.de>
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* include/tr1/type_traits (extent): Minor tweak (i.e., public).
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* include/tr1/type_traits (extent): Minor tweak (i.e., public).
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@ -28,21 +28,17 @@
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#include <bits/c++config.h>
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#include <bits/c++config.h>
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#include <cstddef>
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#include <cstddef>
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//namespace std::tr1
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// namespace std::tr1
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namespace std
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namespace std
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{
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{
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namespace tr1
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namespace tr1
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{
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{
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/// @brief helper classes [4.3].
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// For use in is_function and elsewhere.
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template<typename _Tp, _Tp __v>
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struct __sfinae_types
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struct integral_constant
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{
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{
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typedef char __one;
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static const _Tp value = __v;
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typedef struct { char __arr[2]; } __two;
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typedef _Tp value_type;
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};
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typedef integral_constant<_Tp, __v> type;
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};
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typedef integral_constant<bool, true> true_type;
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typedef integral_constant<bool, false> false_type;
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#define _DEFINE_SPEC_HELPER(_Header, _Spec) \
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#define _DEFINE_SPEC_HELPER(_Header, _Spec) \
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template _Header \
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template _Header \
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@ -55,6 +51,17 @@ namespace tr1
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_DEFINE_SPEC_HELPER(_Header, _Trait<_Type volatile>) \
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_DEFINE_SPEC_HELPER(_Header, _Trait<_Type volatile>) \
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_DEFINE_SPEC_HELPER(_Header, _Trait<_Type const volatile>)
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_DEFINE_SPEC_HELPER(_Header, _Trait<_Type const volatile>)
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/// @brief helper classes [4.3].
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template<typename _Tp, _Tp __v>
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struct integral_constant
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{
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static const _Tp value = __v;
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typedef _Tp value_type;
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typedef integral_constant<_Tp, __v> type;
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};
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typedef integral_constant<bool, true> true_type;
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typedef integral_constant<bool, false> false_type;
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/// @brief primary type categories [4.5.1].
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/// @brief primary type categories [4.5.1].
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template<typename>
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template<typename>
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struct is_void
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struct is_void
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@ -126,9 +133,30 @@ namespace tr1
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template<typename _Tp>
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template<typename _Tp>
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struct is_class;
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struct is_class;
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template<typename _Tp>
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struct __is_function_helper
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: public __sfinae_types
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{
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private:
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template<typename>
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static __one
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__test(...);
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template<typename _Up>
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static __two
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__test(_Up (*) [1]);
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public:
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static const bool __value = sizeof(__test<_Tp>(0)) == 1;
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};
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template<typename _Tp>
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template<typename _Tp>
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struct is_function;
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struct is_function
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: public integral_constant<bool, (__is_function_helper<_Tp>::__value
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&& !is_reference<_Tp>::value
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&& !is_void<_Tp>::value)>
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{ };
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/// @brief composite type traits [4.5.2].
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/// @brief composite type traits [4.5.2].
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template<typename _Tp>
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template<typename _Tp>
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@ -0,0 +1,50 @@
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// 2004-12-16 Paolo Carlini <pcarlini@suse.de>
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//
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// Copyright (C) 2004 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// 4.5.2 Composite type traits
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#include <tr1/type_traits>
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#include <testsuite_hooks.h>
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#include <testsuite_tr1.h>
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void test01()
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{
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bool test __attribute__((unused)) = true;
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using std::tr1::is_object;
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using namespace __gnu_test;
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VERIFY( (test_category<is_object, int (int)>(false)) );
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VERIFY( (test_category<is_object, ClassType (ClassType)>(false)) );
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VERIFY( (test_category<is_object, float (int, float, int[], int&)>(false)) );
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VERIFY( (test_category<is_object, int&>(false)) );
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VERIFY( (test_category<is_object, ClassType&>(false)) );
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VERIFY( (test_category<is_object, int(&)(int)>(false)) );
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VERIFY( (test_category<is_object, void>(false)) );
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VERIFY( (test_category<is_object, const void>(false)) );
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// Sanity check.
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VERIFY( (test_category<is_object, ClassType>(true)) );
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}
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int main()
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{
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test01();
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return 0;
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}
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@ -0,0 +1,36 @@
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// 2004-12-16 Paolo Carlini <pcarlini@suse.de>
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//
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// Copyright (C) 2004 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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//
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// NB: This file is for testing tr1/type_traits with NO OTHER INCLUDES.
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#include <tr1/type_traits>
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// { dg-do compile }
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void test01()
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{
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// Check for required typedefs
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typedef std::tr1::is_object<int> test_type;
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typedef test_type::value_type value_type;
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typedef test_type::type type;
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typedef test_type::type::value_type type_value_type;
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typedef test_type::type::type type_type;
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}
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@ -0,0 +1,51 @@
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// 2004-12-16 Paolo Carlini <pcarlini@suse.de>
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//
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// Copyright (C) 2004 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// 4.5.1 Primary type categories
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#include <tr1/type_traits>
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#include <testsuite_hooks.h>
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#include <testsuite_tr1.h>
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void test01()
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{
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bool test __attribute__((unused)) = true;
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using std::tr1::is_function;
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using namespace __gnu_test;
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// Positive tests.
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VERIFY( (test_category<is_function, int (int)>(true)) );
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VERIFY( (test_category<is_function, ClassType (ClassType)>(true)) );
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VERIFY( (test_category<is_function, float (int, float, int[], int&)>(true)) );
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// Negative tests.
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VERIFY( (test_category<is_function, int&>(false)) );
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VERIFY( (test_category<is_function, void>(false)) );
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VERIFY( (test_category<is_function, const void>(false)) );
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// Sanity check.
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VERIFY( (test_category<is_function, ClassType>(false)) );
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}
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int main()
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{
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test01();
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return 0;
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}
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@ -0,0 +1,36 @@
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// 2004-12-16 Paolo Carlini <pcarlini@suse.de>
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//
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// Copyright (C) 2004 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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//
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// NB: This file is for testing tr1/type_traits with NO OTHER INCLUDES.
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#include <tr1/type_traits>
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// { dg-do compile }
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void test01()
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{
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// Check for required typedefs
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typedef std::tr1::is_function<int> test_type;
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typedef test_type::value_type value_type;
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typedef test_type::type type;
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typedef test_type::type::value_type type_value_type;
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typedef test_type::type::type type_type;
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}
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