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 // 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 24 struct A 25 { 26 static int count; 27 A() {++count;} 28 A(const A&) {++count;} 29 ~A() {--count;} 30 }; 31 32 int A::count = 0; 33 34 int 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
