[PATCH][libstdc++-v3 parallel mode] Fix name collision PR libstdc++/37470

[Marc Glisse]

On Thu, 18 Sep 2008, Johannes Singler wrote:

> Uglification will continue...
>
> Tested x86_64-unknown-linux-gnu: No regressions
>
> Please approve for mainline.
>
> 2008-09-18  Johannes Singler  <singler@ira.uka.de>
>
>        PR libstdc++/37470
>        * include/parallel/base.h: Rename log2 to __log2.
> 	  (__log2) Avoid infinite loop for n <= 0, return 0.
>        * include/parallel/losertree.h: Rename log2 to __log2.
>        * include/parallel/multiseq_selection.h: Likewise.
>        * include/parallel/random_shuffle.h: Likewise.

I would just like to mention PR libstdc++/27340 which says that a leading 
__ is not such a good way to uglify math function names (solaris libm 
already uses this scheme).

Well, that's just one more that may have to be changed some day (as this 
is in a private gcc namespace, I am not sure what the original problem 
with log2 is, so there might not be any problem with __log2), so please go 
ahead and ignore this email.

-- 
Marc Glisse