[Bug libstdc++/51142] [C++0x] map::erase(key) doesn't compile with -D_GLIBCXX_DEBUG.

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51142

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-15 
16:59:32 UTC ---
oh yeah, I forgot about that!