http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46424

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-11-11 
17:13:20 UTC ---
(In reply to comment #5)
> 
> Maybe I'm misinterpreting the standard, but in 23.2.1, it states:
> 
> "The insert members shall not affect the validity of iterators and references
> to the container, and the erase members shall invalidate only iterators and
> references to the erased elements."
> 
> Since out is not an iterator to a member of toDo, shouldn't it remain valid
> through this operation?

Are you having a laugh?

in networkgraph.cpp, line 84

        std::set<PublicKey>::iterator out = toDo.begin();

then on line 90 you assign another iterator from toDo to out

What makes you think out is not an iterator to a member of toDo?

then on line 98 you do:

toDo.erase( *out );

that erases *out from the set, which invalidates iterators to the erased
element, specifially it invalidates out.

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