Message ID | CACb0b4=gs=1UAi+qDE1rkz41VNj9_7mr1GZECaECBmiTbxe2aA@mail.gmail.com |
---|---|
State | New |
Headers | show |
Series | [committed] libstdc++: Add missing test for std::optional::transform(F&&) | expand |
diff --git a/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc b/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc index d01ccb2e0f2..13977b8ba8d 100644 --- a/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc +++ b/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc @@ -110,6 +110,23 @@ static_assert( test_forwarding() ); constexpr bool test_copy_elision() { + struct immovable + { + constexpr immovable(int p) : power_level(p) { } + immovable(immovable&&) = delete; + + int power_level; + }; + + struct Force + { + constexpr immovable operator()(int i) const { return {i+1}; } + }; + + std::optional<int> irresistible(9000); + std::optional<immovable> object = irresistible.transform(Force{}); + VERIFY( object->power_level > 9000 ); + return true; }