move_convert03.fail.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <memory> 11 12// unique_ptr 13 14// Test unique_ptr converting move assignment 15 16// Can't assign from lvalue 17 18#include <memory> 19#include <cassert> 20 21#include "../../deleter.h" 22 23struct A 24{ 25 static int count; 26 A() {++count;} 27 A(const A&) {++count;} 28 virtual ~A() {--count;} 29}; 30 31int A::count = 0; 32 33struct B 34 : public A 35{ 36 static int count; 37 B() {++count;} 38 B(const B&) {++count;} 39 virtual ~B() {--count;} 40}; 41 42int B::count = 0; 43 44int main() 45{ 46 { 47 Deleter<B> db(5); 48 std::unique_ptr<B, Deleter<B>&> s(new B, db); 49 A* p = s.get(); 50 Deleter<A> da(6); 51 std::unique_ptr<A, Deleter<A>&> s2(new A, da); 52 s2 = s; 53 assert(s2.get() == p); 54 assert(s.get() == 0); 55 assert(A::count == 1); 56 assert(B::count == 1); 57 assert(s2.get_deleter().state() == 5); 58 } 59 assert(A::count == 0); 60 assert(B::count == 0); 61} 62