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(pointer) ctor 15 16 #include <memory> 17 #include <cassert> 18 19 // template <class U> explicit unique_ptr(auto_ptr<U>&); 20 21 struct A 22 { 23 static int count; 24 A() {++count;} 25 A(const A&) {++count;} 26 virtual ~A() {--count;} 27 }; 28 29 int A::count = 0; 30 31 struct B 32 // : public A 33 { 34 static int count; 35 B() {++count;} 36 B(const B&) {++count;} 37 virtual ~B() {--count;} 38 }; 39 40 int B::count = 0; 41 42 int main() 43 { 44 { 45 B* p = new B; 46 std::auto_ptr<B> ap(p); 47 std::unique_ptr<A> up(ap); 48 assert(up.get() == p); 49 assert(ap.get() == 0); 50 assert(A::count == 1); 51 assert(B::count == 1); 52 } 53 assert(A::count == 0); 54 assert(B::count == 0); 55 { 56 B* p = new B; 57 std::auto_ptr<B> ap(p); 58 std::unique_ptr<A> up; 59 up = ap; 60 assert(up.get() == p); 61 assert(ap.get() == 0); 62 assert(A::count == 1); 63 assert(B::count == 1); 64 } 65 assert(A::count == 0); 66 assert(B::count == 0); 67 } 68
