Subj : Re: Non-strictly-conforming and unspecified versus undefined
To   : comp.programming.threads,comp.std.c
From : Marcin 'Qrczak' Kowalczyk
Date : Tue Feb 22 2005 10:30 pm

"David Schwartz" <davids@webmaster.com> writes:

>> Not "a lot", because thread-specific addresses can be implemented
>> in terms of thread-specific objects with only one extra indirection.
>
>     On every conceivable platform? He said it "can be alot faster on some 
> platforms" and you reply with an optimization that works only on some 
> platforms (and often burns a register as well).

Of course it works on every platform. If you can have a thread-private
object, just store a pointer to an object living in a shared heap there.

If one additional indirection is "a lot slower", then I don't know
what can be "a bit slower".

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak@knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/

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