[Bug libstdc++/51823] [DR 198] reverse iterator returns uninitialized values

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51823

--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-14 
15:43:52 UTC ---
Created attachment 26323
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26323
implement DR 198

it's ugly, but it works