[Bug libstdc++/47380] concept checking and incomplete types

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47380

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-01-20 20:36:36 UTC ---
no problem, re-categorising bugs as features via documentation is easy ;)