[PATCH] fix 45841, add regression

[Paolo Carlini]

... as applied, tested x86_64-linux. Thanks!

Paolo.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_45841
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20101006/b2a0b94b/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_45841_p
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20101006/b2a0b94b/attachment-0001.ksh>