WG21/LWG今天投票将P1759收录进入C++26

https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p1759r6.html

爷爷，C++标准又更新了，你终于可以从 std::basic_filebuf / std::basic_ifstream / std::basic_ofstream / std::basic_fstream 对象拿到文件的句柄/文件描述符了！