1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <memory> 11 12 // shared_ptr 13 14 // explicit operator bool() const; 15 16 #include <memory> 17 #include <cassert> 18 19 int main() 20 { 21 { 22 const std::shared_ptr<int> p(new int(32)); 23 assert(p); 24 } 25 { 26 const std::shared_ptr<int> p; 27 assert(!p); 28 } 29 } 30
