//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <memory> // shared_ptr // template <class U> bool owner_before(shared_ptr<U> const& b) const; #include <memory> #include <cassert> int main() { const std::shared_ptr<int> p1(new int); const std::shared_ptr<int> p2 = p1; const std::shared_ptr<int> p3(new int); assert(!p1.owner_before(p2)); assert(!p2.owner_before(p1)); assert(p1.owner_before(p3) || p3.owner_before(p1)); assert(p3.owner_before(p1) == p3.owner_before(p2)); }