| //===----------------------------------------------------------------------===// |
| // |
| // 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: c++98, c++03, c++11, c++14 |
| |
| // XFAIL: with_system_cxx_lib=macosx10.12 |
| // XFAIL: with_system_cxx_lib=macosx10.11 |
| // XFAIL: with_system_cxx_lib=macosx10.10 |
| // XFAIL: with_system_cxx_lib=macosx10.9 |
| // XFAIL: with_system_cxx_lib=macosx10.7 |
| // XFAIL: with_system_cxx_lib=macosx10.8 |
| |
| // <optional> |
| |
| // constexpr optional(T&& v); |
| |
| #include <optional> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "archetypes.hpp" |
| |
| |
| using std::optional; |
| |
| |
| class Z |
| { |
| public: |
| Z(int) {} |
| Z(Z&&) {TEST_THROW(6);} |
| }; |
| |
| |
| int main() |
| { |
| { |
| typedef int T; |
| constexpr optional<T> opt(T(5)); |
| static_assert(static_cast<bool>(opt) == true, ""); |
| static_assert(*opt == 5, ""); |
| |
| struct test_constexpr_ctor |
| : public optional<T> |
| { |
| constexpr test_constexpr_ctor(T&&) {} |
| }; |
| } |
| { |
| typedef double T; |
| constexpr optional<T> opt(T(3)); |
| static_assert(static_cast<bool>(opt) == true, ""); |
| static_assert(*opt == 3, ""); |
| |
| struct test_constexpr_ctor |
| : public optional<T> |
| { |
| constexpr test_constexpr_ctor(T&&) {} |
| }; |
| } |
| { |
| const int x = 42; |
| optional<const int> o(std::move(x)); |
| assert(*o == 42); |
| } |
| { |
| typedef TestTypes::TestType T; |
| T::reset(); |
| optional<T> opt = T{3}; |
| assert(T::alive == 1); |
| assert(T::move_constructed == 1); |
| assert(static_cast<bool>(opt) == true); |
| assert(opt.value().value == 3); |
| } |
| { |
| typedef ExplicitTestTypes::TestType T; |
| static_assert(!std::is_convertible<T&&, optional<T>>::value, ""); |
| T::reset(); |
| optional<T> opt(T{3}); |
| assert(T::alive == 1); |
| assert(T::move_constructed == 1); |
| assert(static_cast<bool>(opt) == true); |
| assert(opt.value().value == 3); |
| } |
| { |
| typedef TestTypes::TestType T; |
| T::reset(); |
| optional<T> opt = {3}; |
| assert(T::alive == 1); |
| assert(T::value_constructed == 1); |
| assert(T::copy_constructed == 0); |
| assert(T::move_constructed == 0); |
| assert(static_cast<bool>(opt) == true); |
| assert(opt.value().value == 3); |
| } |
| { |
| typedef ConstexprTestTypes::TestType T; |
| constexpr optional<T> opt = {T(3)}; |
| static_assert(static_cast<bool>(opt) == true, ""); |
| static_assert(opt.value().value == 3, ""); |
| |
| struct test_constexpr_ctor |
| : public optional<T> |
| { |
| constexpr test_constexpr_ctor(const T&) {} |
| }; |
| } |
| { |
| typedef ConstexprTestTypes::TestType T; |
| constexpr optional<T> opt = {3}; |
| static_assert(static_cast<bool>(opt) == true, ""); |
| static_assert(opt.value().value == 3, ""); |
| |
| struct test_constexpr_ctor |
| : public optional<T> |
| { |
| constexpr test_constexpr_ctor(const T&) {} |
| }; |
| } |
| { |
| typedef ExplicitConstexprTestTypes::TestType T; |
| static_assert(!std::is_convertible<T&&, optional<T>>::value, ""); |
| constexpr optional<T> opt(T{3}); |
| static_assert(static_cast<bool>(opt) == true, ""); |
| static_assert(opt.value().value == 3, ""); |
| |
| struct test_constexpr_ctor |
| : public optional<T> |
| { |
| constexpr test_constexpr_ctor(T&&) {} |
| }; |
| |
| } |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| { |
| struct Z { |
| Z(int) {} |
| Z(Z&&) {throw 6;} |
| }; |
| typedef Z T; |
| try |
| { |
| T t(3); |
| optional<T> opt(std::move(t)); |
| assert(false); |
| } |
| catch (int i) |
| { |
| assert(i == 6); |
| } |
| } |
| #endif |
| } |