https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123078
--- Comment #12 from Jan Schultke <janschultke at googlemail dot com> --- Also note the original design discussion on std::from_chars in P0067R5: > There are two failure modes: > no characters match, or > the pattern translates to a value that is not in the range representable by T. There is nothing in design discussion or the wording that suggests that underflow or lack of precision would result in a "failure mode". Rejecting an input for being too close to zero (like libstdc++, unlike other implementations) is arbitrary and incorrect.
