diff options
Diffstat (limited to 'libcxx/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp')
-rw-r--r-- | libcxx/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/libcxx/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp b/libcxx/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp new file mode 100644 index 00000000000..b320c95c582 --- /dev/null +++ b/libcxx/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp @@ -0,0 +1,124 @@ +//===----------------------------------------------------------------------===// +// +// 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> + +// optional(optional<T>&& rhs) noexcept(is_nothrow_move_constructible<T>::value); + +#include <experimental/optional> +#include <type_traits> +#include <cassert> + +#if _LIBCPP_STD_VER > 11 + +using std::experimental::optional; + +template <class T> +void +test(optional<T>& rhs, bool is_going_to_throw = false) +{ + static_assert(std::is_nothrow_move_constructible<optional<T>>::value == + std::is_nothrow_move_constructible<T>::value, ""); + bool rhs_engaged = static_cast<bool>(rhs); + try + { + optional<T> lhs = std::move(rhs); + assert(is_going_to_throw == false); + assert(static_cast<bool>(lhs) == rhs_engaged); + } + catch (int i) + { + assert(i == 6); + } +} + +class X +{ + int i_; +public: + X(int i) : i_(i) {} + X(X&& x) : i_(x.i_) {x.i_ = 0;} + ~X() {i_ = 0;} + friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;} +}; + +class Y +{ + int i_; +public: + Y(int i) : i_(i) {} + Y(Y&& x) noexcept : i_(x.i_) {x.i_ = 0;} + + friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;} +}; + +int count = 0; + +class Z +{ + int i_; +public: + Z(int i) : i_(i) {} + Z(Z&&) + { + if (++count == 2) + throw 6; + } + + friend constexpr bool operator==(const Z& x, const Z& y) {return x.i_ == y.i_;} +}; + + +#endif // _LIBCPP_STD_VER > 11 + +int main() +{ +#if _LIBCPP_STD_VER > 11 + { + typedef int T; + optional<T> rhs; + test(rhs); + } + { + typedef int T; + optional<T> rhs(3); + test(rhs); + } + { + typedef X T; + optional<T> rhs; + test(rhs); + } + { + typedef X T; + optional<T> rhs(X(3)); + test(rhs); + } + { + typedef Y T; + optional<T> rhs; + test(rhs); + } + { + typedef Y T; + optional<T> rhs(Y(3)); + test(rhs); + } + { + typedef Z T; + optional<T> rhs; + test(rhs); + } + { + typedef Z T; + optional<T> rhs(Z(3)); + test(rhs, true); + } +#endif // _LIBCPP_STD_VER > 11 +} |