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 ctor 15 16#include <memory> 17#include <cassert> 18 19// test move ctor. Can't copy from const lvalue 20 21struct A 22{ 23 static int count; 24 A() {++count;} 25 A(const A&) {++count;} 26 ~A() {--count;} 27}; 28 29int A::count = 0; 30 31class Deleter 32{ 33 int state_; 34 35public: 36 37 Deleter() : state_(5) {} 38 39 int state() const {return state_;} 40 41 void operator()(A* p) {delete p;} 42}; 43 44int main() 45{ 46 { 47 const std::unique_ptr<A, Deleter> s(new A); 48 A* p = s.get(); 49 std::unique_ptr<A, Deleter> s2; 50 s2 = s; 51 assert(s2.get() == p); 52 assert(s.get() == 0); 53 assert(A::count == 1); 54 } 55 assert(A::count == 0); 56} 57