You should take a look at std::from_chars IIRC it can completely destroy other parsers within the stdlib because it's not intended to take locale into considera

You should take a look at std::from_chars IIRC it can completely destroy other parsers within the stdlib because it's not intended to take locale into consideration. https://en.cppreference.com/w/cpp/utility/from_chars https://en.cppreference.com/w/cpp/utility/from_chars