reset2.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976
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 reset 15 16#include <memory> 17#include <cassert> 18 19struct A 20{ 21 static int count; 22 A() {++count;} 23 A(const A&) {++count;} 24 virtual ~A() {--count;} 25}; 26 27int A::count = 0; 28 29struct B 30 : public A 31{ 32 static int count; 33 B() {++count;} 34 B(const B&) {++count;} 35 virtual ~B() {--count;} 36}; 37 38int B::count = 0; 39 40int main() 41{ 42 { 43 std::unique_ptr<A> p(new A); 44 assert(A::count == 1); 45 assert(B::count == 0); 46 A* i = p.get(); 47 p.reset(new B); 48 assert(A::count == 1); 49 assert(B::count == 1); 50 } 51 assert(A::count == 0); 52 assert(B::count == 0); 53 { 54 std::unique_ptr<A> p(new B); 55 assert(A::count == 1); 56 assert(B::count == 1); 57 A* i = p.get(); 58 p.reset(new B); 59 assert(A::count == 1); 60 assert(B::count == 1); 61 } 62 assert(A::count == 0); 63 assert(B::count == 0); 64} 65