[v3] Add std::partition_point

[Paolo Carlini]

Hi,

tested x86_64-linux, committed to mainline.

Paolo.

///////////////////////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_partition_point.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080628/7c7de62e/attachment.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_partition_point.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080628/7c7de62e/attachment-0001.txt>