forked from OSchip/llvm-project
58 lines
1.0 KiB
C++
58 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <memory>
|
|
|
|
// unique_ptr
|
|
|
|
// Test unique_ptr move ctor
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
#include <cassert>
|
|
|
|
// test move ctor. Can't copy from const lvalue
|
|
|
|
struct A
|
|
{
|
|
static int count;
|
|
A() {++count;}
|
|
A(const A&) {++count;}
|
|
~A() {--count;}
|
|
};
|
|
|
|
int A::count = 0;
|
|
|
|
class Deleter
|
|
{
|
|
int state_;
|
|
|
|
public:
|
|
|
|
Deleter() : state_(5) {}
|
|
|
|
int state() const {return state_;}
|
|
|
|
void operator()(A* p) {delete p;}
|
|
};
|
|
|
|
int main()
|
|
{
|
|
{
|
|
const std::unique_ptr<A, Deleter> s(new A);
|
|
A* p = s.get();
|
|
std::unique_ptr<A, Deleter> s2;
|
|
s2 = s;
|
|
assert(s2.get() == p);
|
|
assert(s.get() == 0);
|
|
assert(A::count == 1);
|
|
}
|
|
assert(A::count == 0);
|
|
}
|