Files
libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_exchange.pass.cpp
Eric Fiselier d24c465bea Replace __cplusplus comparisons and dialect __has_feature checks with TEST_STD_VER.
This is a huge cleanup that helps make the libc++ test suite more portable.
Patch from STL@microsoft.com. Thanks STL!


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@272716 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-14 21:31:42 +00:00

42 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.
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
//
// This test uses new symbols that were not defined in the libc++ shipped on
// darwin11 and darwin12:
// XFAIL: with_system_cxx_lib=x86_64-apple-darwin11
// XFAIL: with_system_cxx_lib=x86_64-apple-darwin12
// <memory>
// shared_ptr
// template <class T>
// shared_ptr<T>
// atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r)
// UNSUPPORTED: c++98, c++03
#include <memory>
#include <cassert>
#include "test_macros.h"
int main()
{
{
std::shared_ptr<int> p(new int(4));
std::shared_ptr<int> r(new int(3));
r = std::atomic_exchange(&p, r);
assert(*p == 3);
assert(*r == 4);
}
}