[Bug libstdc++/105441] New: The floating point overload of from_chars ignores 'P' for hex format

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105441

            Bug ID: 105441
           Summary: The floating point overload of from_chars ignores 'P'
                    for hex format
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

>From StackOverflow
https://stackoverflow.com/questions/72068948/is-stdfrom-chars-supposed-to-handle-uppercase-hexadecimal-exponents/72069971#72069971

testsuite:
https://godbolt.org/z/ad1es7eE6