// { dg-options "-std=gnu++0x" } // // Copyright (C) 2011 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 3, 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 COPYING3. If not see // . #include #include #include struct A { }; struct B1 : virtual public A { }; struct B2 : virtual public A { }; struct C : public B1, public B2 { }; void test() { bool test __attribute__((unused)) = true; // 1 { typedef std::tr2::direct_bases::type tl; static_assert(tl::empty::value, "error"); } // 2 { typedef std::tr2::direct_bases::type tl1; typedef std::tr2::direct_bases::type tl2; // Sanity check w/ runtime. bool eq = typeid(tl1) == typeid(tl2); if (!eq) throw std::logic_error("typelist not equal"); // Sanity check. static_assert(tl1::empty::value != std::true_type::value, "!empty"); static_assert(tl2::empty::value != std::true_type::value, "!empty"); typedef tl1::first::type tl1_first; typedef tl1::rest::type tl1_rest; typedef tl2::first::type tl2_first; typedef tl2::rest::type tl2_rest; eq = typeid(tl1_first) == typeid(tl2_first); if (!eq) throw std::logic_error("base not equal"); static_assert(tl1_rest::empty::value == std::true_type::value, "empty"); static_assert(tl2_rest::empty::value == std::true_type::value, "empty"); } // 3 { typedef std::tr2::direct_bases::type tl; // Sanity check. static_assert(tl::empty::value != std::true_type::value, "!empty"); typedef tl::first::type tl1_first; typedef tl::rest::type tl2; typedef tl2::first::type tl2_first; typedef tl2::rest::type tl3; bool eq = typeid(tl1_first) == typeid(tl2_first); if (eq) throw std::logic_error("bases are not equal"); static_assert(tl3::empty::value == std::true_type::value, "empty"); } } int main() { test(); return 0; }