Method construct

src/include/expected.hpp:700–703

  using expected_storage_base<T, E>::expected_storage_base;

  template <class... Args> void construct(Args &&...args) noexcept {
    new (std::addressof(this->m_val)) T(std::forward<Args>(args)...);
    this->m_has_val = true;
  }

  template <class Rhs> void construct_with(Rhs &&rhs) noexcept {
    new (std::addressof(this->m_val)) T(std::forward<Rhs>(rhs).get());