[PATCH][libstdc++-v3 parallel mode] Ambiguities (incl. std::mismatch)

[Paolo Carlini]

Hi,
> I have come to the conclusion that my patch from 2010-03-22 was mostly
> bogus (r157643), and deactivated parallel execution for the affected
> routines in certain cases.  The namespace _GLIBCXX_STD_P always
> suggests "parallel", but it is the very opposite :-(
>
> I have added test cases (for conformance) to existing files since this
> is the problem of mixing implicit and explicit calls to the parallel
> mode again.
>
> Tested x86_64-unknown-linux-gnu: No regressions
>
> Please approve for mainline and gcc-4_5-branch, also waiting for the
> feedback of François.
Thanks for sorting out this issue. Patch is Ok for mainline now and in a
week or so for 4_5-branch too, assuming of course you tested both make
check and make check-parallel.

A nit: testcases too should be wrapped to 80 columns.

Thanks again,
Paolo.