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

["redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

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

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It's not an option IMHO. See http://www​.stroustrup.com/SCARY.pdf for the
benefits of the current design. Those benefits outweigh the advantage of having
non-portable code diagnosed. Debug iterators can't be SCARY because they have a
pointer back to their patent container so have to depend on the exact type.
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/62169] map iterators under _GLIBCXX_DEBUG diverge
Date: Sun, 24 Aug 2014 10:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idb169

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #6)
> they have a pointer back to their patent container

s/patent/parent/

As for solving the problem of switching containers, use a typedef for the
container, or auto for the iterator. It doesn't need to be solved by the
compiler.