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// 2005-02-27 Douglas Gregor <doug.gregor -at- gmail.com> // // 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // 2.1 reference wrappers #include <tr1/functional> #include <tr1/type_traits> #include <testsuite_hooks.h> #include <testsuite_tr1.h> using namespace __gnu_test; struct X {}; struct int_result_type { typedef int result_type; }; struct derives_unary : std::unary_function<int, int> {}; struct derives_binary : std::binary_function<int, float, int> {}; struct derives_unary_binary : std::unary_function<int, int>, std::binary_function<int, float, int> { typedef int result_type; }; void test01() { bool test __attribute__((unused)) = true; using std::tr1::reference_wrapper; using std::tr1::is_same; using std::tr1::is_convertible; using std::unary_function; using std::binary_function; // Check result_type typedef VERIFY((is_same<reference_wrapper<int_result_type>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<derives_unary>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<derives_binary>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<derives_unary_binary>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<int(void)>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<int(*)(void)>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<int (::X::*)()>::result_type, int>::value)); VERIFY((is_same<reference_wrapper<int (::X::*)(float)>::result_type, int>::value)); // Check derivation from unary_function VERIFY((is_convertible<reference_wrapper<derives_unary>*, unary_function<int, int>*>::value)); VERIFY((is_convertible<reference_wrapper<derives_unary_binary>*, unary_function<int, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int(int)>*, unary_function<int, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int(*)(int)>*, unary_function<int, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)()>*, unary_function< ::X*, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)() const>*, unary_function<const ::X*, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)() volatile>*, unary_function<volatile ::X*, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)() const volatile>*, unary_function<const volatile ::X*, int>*>::value)); // Check derivation from binary_function VERIFY((is_convertible<reference_wrapper<derives_binary>*, binary_function<int, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<derives_unary_binary>*, binary_function<int, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int(int, float)>*, binary_function<int, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int(*)(int, float)>*, binary_function<int, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)(float)>*, binary_function< ::X*, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)(float) const>*, binary_function<const ::X*, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)(float) volatile>*, binary_function<volatile ::X*, float, int>*>::value)); VERIFY((is_convertible<reference_wrapper<int (::X::*)(float) const volatile>*, binary_function<const volatile ::X*, float, int>*>::value)); } int main() { test01(); return 0; }