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 // unique_ptr 13 14 // Test unique_ptr move assignment 15 16 #include <memory> 17 #include <cassert> 18 19 // test assignment from null 20 21 struct A 22 { 23 static int count; AA24 A() {++count;} AA25 A(const A&) {++count;} ~AA26 ~A() {--count;} 27 }; 28 29 int A::count = 0; 30 main()31int main() 32 { 33 { 34 std::unique_ptr<A> s2(new A); 35 assert(A::count == 1); 36 s2 = 0; 37 assert(A::count == 0); 38 assert(s2.get() == 0); 39 } 40 assert(A::count == 0); 41 } 42