move01.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a
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 move assignment 15 16// test move assignment. Should only require a MoveConstructible deleter, or if 17// deleter is a reference, not even that. 18 19#include <memory> 20#include <cassert> 21 22#include "../../deleter.h" 23 24struct A 25{ 26 static int count; 27 A() {++count;} 28 A(const A&) {++count;} 29 ~A() {--count;} 30}; 31 32int A::count = 0; 33 34int main() 35{ 36 { 37 std::unique_ptr<A> s1(new A); 38 A* p = s1.get(); 39 std::unique_ptr<A> s2(new A); 40 assert(A::count == 2); 41 s2 = std::move(s1); 42 assert(A::count == 1); 43 assert(s2.get() == p); 44 assert(s1.get() == 0); 45 } 46 assert(A::count == 0); 47 { 48 std::unique_ptr<A, Deleter<A> > s1(new A, Deleter<A>(5)); 49 A* p = s1.get(); 50 std::unique_ptr<A, Deleter<A> > s2(new A); 51 assert(A::count == 2); 52 s2 = std::move(s1); 53 assert(s2.get() == p); 54 assert(s1.get() == 0); 55 assert(A::count == 1); 56 assert(s2.get_deleter().state() == 5); 57 assert(s1.get_deleter().state() == 0); 58 } 59 assert(A::count == 0); 60 { 61 CDeleter<A> d1(5); 62 std::unique_ptr<A, CDeleter<A>&> s1(new A, d1); 63 A* p = s1.get(); 64 CDeleter<A> d2(6); 65 std::unique_ptr<A, CDeleter<A>&> s2(new A, d2); 66 s2 = std::move(s1); 67 assert(s2.get() == p); 68 assert(s1.get() == 0); 69 assert(A::count == 1); 70 assert(d1.state() == 5); 71 assert(d2.state() == 5); 72 } 73 assert(A::count == 0); 74} 75