Method Swap

util/stream/str.h:45–48

    TStringInput& operator=(TStringInput&&) noexcept = default;

    inline void Swap(TStringInput& s) noexcept {
        DoSwap(S_, s.S_);
        DoSwap(Pos_, s.Pos_);
    }

protected:
    size_t DoNext(const void** ptr, size_t len) override;