move_convert02.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976
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 converting move assignment 15 16#include <memory> 17#include <cassert> 18 19#include "../../deleter.h" 20 21struct A 22{ 23 static int count; 24 A() {++count;} 25 A(const A&) {++count;} 26 virtual ~A() {--count;} 27}; 28 29int A::count = 0; 30 31struct B 32 : public A 33{ 34 static int count; 35 B() {++count;} 36 B(const B&) {++count;} 37 virtual ~B() {--count;} 38}; 39 40int B::count = 0; 41 42int main() 43{ 44 { 45 std::unique_ptr<B, Deleter<B> > s(new B, Deleter<B>(5)); 46 A* p = s.get(); 47 std::unique_ptr<A, Deleter<A> > s2(new A); 48 assert(A::count == 2); 49 s2 = std::move(s); 50 assert(s2.get() == p); 51 assert(s.get() == 0); 52 assert(A::count == 1); 53 assert(B::count == 1); 54 assert(s2.get_deleter().state() == 5); 55 assert(s.get_deleter().state() == 0); 56 } 57 assert(A::count == 0); 58 assert(B::count == 0); 59} 60