1 files changed, 58 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 c68792058fc..93895ba6f94 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 +1,58 @@
-//===----------------------------------------------------------------------===//
//
//                     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
+//===----------------------------------------------------------------------===//
+//
+//                     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);
+}