[libc++][patch] Add missing parts from <functional>

[Sebastian Redl]

<functional> is missing minor things:
- The synopsis comments does not contain any of the bit_* functors.
- The actual implementation of bit_not is missing.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: functional.patch
Type: application/octet-stream
Size: 2244 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20130727/18fbb63a/attachment.obj>