[v3] Add C++0x hash<bitset>

[Paolo Carlini]

Hi,

tested x86_64-linux, debug-mode too, committed.

Paolo.

//////////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_hash_bitset
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100302/748cfc26/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_hash_bitset
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100302/748cfc26/attachment-0001.ksh>