> Assuming that the locale issue isn't a problem, can that be reused? The to_chars patch uses C++14 features, while to_string is C++11. If that was solved, it probably could be used. However, as far as I know, simply using to_chars in to_string would technically be suboptimal, because it needs three loops: - in to_chars, to determine length of the string - in to_chars, to format the number - in to_string, to copy the formatted string to std::string
Meanwhile, ideally to_string can use only two loops: - to determine length of the std::string - to format the number in constructed std::string OR (this is what I am doing) - to format the number in temporary buffer - to copy the formatted string to std::string That said, the proposed not-yet-committed to_chars implementation is more optimized than my code (by doing less integer divisions), so it may perform just as good as mine or better.
