[Bug libstdc++/50160] vector<bool> comparison very slow (no specialisation)

[devel@the-user.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50160

--- Comment #8 from Jonathan Schmidt-Dominé <devel@the-user.org> 2011-08-23 19:04:25 UTC ---
For my application I should simply use an unordered_map and all the overhead
has gone. :D But operator< simply should not be that slow.

“I haven't thought about the potential drawbacks of implementing vector<bool>
backwards.”
What do you mean? Chunk wise backwards?

“but I don't think it can be exposed.”
Well, that would not be portable.