diff options
Diffstat (limited to 'libcxx/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp')
-rw-r--r-- | libcxx/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libcxx/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp b/libcxx/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp new file mode 100644 index 00000000000..cc95e6110e8 --- /dev/null +++ b/libcxx/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp @@ -0,0 +1,50 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// <optional> + +// template <class T> +// constexpr +// optional<typename decay<T>::type> +// make_optional(T&& v); + +#include <experimental/optional> +#include <string> +#include <memory> +#include <cassert> + +int main() +{ +#if _LIBCPP_STD_VER > 11 + using std::experimental::optional; + using std::experimental::make_optional; + + { + optional<int> opt = make_optional(2); + assert(*opt == 2); + } + { + std::string s("123"); + optional<std::string> opt = make_optional(s); + assert(*opt == s); + } + { + std::string s("123"); + optional<std::string> opt = make_optional(std::move(s)); + assert(*opt == "123"); + assert(s.empty()); + } + { + std::unique_ptr<int> s(new int(3)); + optional<std::unique_ptr<int>> opt = make_optional(std::move(s)); + assert(**opt == 3); + assert(s == nullptr); + } +#endif // _LIBCPP_STD_VER > 11 +} |