void swap(value& rhs) {
if (this->__hasData) {
if (!rhs.__hasData) {
auto t = std::move(rhs.__excpt);
new(std::addressof(this->__excpt)) std::exception_ptr(t);
std::swap(this->__hasData, rhs.__hasData);
}
} else {
if (rhs.__hasData) {
rhs.swap(*this);
} else {
std::swap(this->__excpt, rhs.__excpt); // inline function in <exception>
std::swap(this->__hasData, rhs.__hasData);
}
}
}
void swap(value& rhs) {
if (this->__hasData) {
if (rhs.__hasData) {
using std::swap;
swap(__data, rhs.__data); // may call swap again
} else {
auto t = std::move(rhs.__excpt);
new(std::addressof(rhs.__data)) T(std::move(__data));
new(std::addressof(this->__excpt)) std::exception_ptr(t);
std::swap(this->__hasData, rhs.__hasData);
}
} else {
if (rhs.__hasData) {
rhs.swap(*this);
} else {
std::swap(this->__excpt, rhs.__excpt); // inline function in <exception>
//spam.swap(rhs.spam);
std::swap(this->__hasData, rhs.__hasData);
}
}
}