Why would string_view be wrong there?
Re:C++ audio mixing library design
by pencilguin on Thursday October 20, 2022 @04:09PM
(#33280029)
Because, then, to parse out a number you would first need to get it into a string.
std::span did not exist in the Standard at the time std::from_chars was adopted.
An overload that takes std::span would be easy, and harmless. But as std::from_chars is only ever used from within some other abstraction, any benefit would be minimal.