[Bug libstdc++/62169] map iterators under _GLIBCXX_DEBUG diverge

[terra at gnome dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62169

--- Comment #2 from M Welinder <terra at gnome dot org> ---
Created attachment 33347
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33347&action=edit
Preprocessed source code for debug case