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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [20_util/] [shared_ptr/] [comparison/] [less.cc] - Rev 424
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// { dg-options "-std=gnu++0x" } // Copyright (C) 2008, 2009 Free Software Foundation // // 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 // <http://www.gnu.org/licenses/>. // 20.8.13.2 Template class shared_ptr [util.smartptr.shared] #include <memory> #include <testsuite_hooks.h> struct A { }; namespace std { template<> struct less<A*> : binary_function<A*,A*,bool> { static int count; bool operator()(A* l, A* r) { ++count; return l < r; } }; int less<A*>::count = 0; } // 20.8.13.2.7 shared_ptr comparison [util.smartptr.shared.cmp] int test01() { bool test __attribute__((unused)) = true; std::less<std::shared_ptr<A>> less; // test empty shared_ptrs compare equivalent std::shared_ptr<A> p1; std::shared_ptr<A> p2; VERIFY( !less(p1, p2) && !less(p2, p1) ); VERIFY( std::less<A*>::count == 2 ); return 0; } // Construction from pointer int test02() { bool test __attribute__((unused)) = true; std::less<std::shared_ptr<A>> less; std::shared_ptr<A> empty; std::shared_ptr<A> p1(new A); std::shared_ptr<A> p2(new A); VERIFY( less(p1, p2) || less(p2, p1) ); VERIFY( !(less(p1, p2) && less(p2, p1)) ); p1.reset(); VERIFY( !less(p1, empty) && !less(empty, p1) ); p2.reset(); VERIFY( !less(p1, p2) && !less(p2, p1) ); return 0; } // Aliasing int test03() { bool test __attribute__((unused)) = true; std::less<std::shared_ptr<A>> less; A a; std::shared_ptr<A> p1(new A); std::shared_ptr<A> p2(p1, &a); VERIFY( less(p1, p2) || less(p2, p1) ); return 0; } int main() { test01(); test02(); test03(); return 0; }
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