[Bug libstdc++/90135] New: std::map::at incorrectly included in C++03 mode

[gcc at gaul dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90135

            Bug ID: 90135
           Summary: std::map::at incorrectly included in C++03 mode
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gcc at gaul dot org
  Target Milestone: ---

Created attachment 46191
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46191&action=edit
Do not include std::map::at before C++11

This was introduced in C++11:

https://en.cppreference.com/w/cpp/container/map/at