diff options
Diffstat (limited to 'libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp')
-rw-r--r-- | libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp b/libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp index fc7e338e6b7..c68792058fc 100644 --- a/libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp +++ b/libcxx/test/utilities/memory/util.smartptr/util.smartptr.weak/util.smartptr.weak.obs/lock.pass.cpp @@ -1 +1 @@ -//===----------------------------------------------------------------------===//
//
// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <memory>
// weak_ptr
// shared_ptr<T> lock() const;
#include <memory>
#include <cassert>
struct A
{
static int count;
A() {++count;}
A(const A&) {++count;}
~A() {--count;}
};
int A::count = 0;
int main()
{
{
std::weak_ptr<A> wp;
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 0);
assert(sp.get() == 0);
assert(A::count == 0);
}
{
std::shared_ptr<A> sp0(new A);
std::weak_ptr<A> wp(sp0);
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 2);
assert(sp.get() == sp0.get());
assert(A::count == 1);
}
assert(A::count == 0);
{
std::shared_ptr<A> sp0(new A);
std::weak_ptr<A> wp(sp0);
sp0.reset();
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 0);
assert(sp.get() == 0);
assert(A::count == 0);
}
assert(A::count == 0);
}
\ No newline at end of file +//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <memory>
// weak_ptr
// shared_ptr<T> lock() const;
#include <memory>
#include <cassert>
struct A
{
static int count;
A() {++count;}
A(const A&) {++count;}
~A() {--count;}
};
int A::count = 0;
int main()
{
{
std::weak_ptr<A> wp;
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 0);
assert(sp.get() == 0);
assert(A::count == 0);
}
{
std::shared_ptr<A> sp0(new A);
std::weak_ptr<A> wp(sp0);
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 2);
assert(sp.get() == sp0.get());
assert(A::count == 1);
}
assert(A::count == 0);
{
std::shared_ptr<A> sp0(new A);
std::weak_ptr<A> wp(sp0);
sp0.reset();
std::shared_ptr<A> sp = wp.lock();
assert(sp.use_count() == 0);
assert(sp.get() == 0);
assert(A::count == 0);
}
assert(A::count == 0);
}
\ No newline at end of file |