RE: [boost] Thread locals

From: Moore, Dave (dmoore_at_[hidden])
Date: 2002-04-04 15:16:29

> >Bill, on pthreads-win32, it's a pointer to a struct 
> pthread_t_.  Without
> >checking the Open Group specs, my suspicion is that you are 
> technically
> >correct that it's an opaque type, but that on most 
> implementations people
> >are used to getting away with using:
> >
> >pthread_t pt;
> >printf("%d",pt);
> >// or
> >printf("%p",pt);
> 
> Oh, I'm quite certain that most platforms define pthread_t as 
> a pointer to 
> some struct type.  But I'm also certain that the type is 
> specified in the 
> standard as opaque, and thus the example usage you just gave 
> results in 
> undefined behavior and is non-conforming code.

I'm actually agreeing with you!  I just think that alot of people are used
to using pthread_t carelessly, which lets them use it just like a 32 (or 64)
bit integer, etc.

This is, of course, exactly the kind of place that Boost.Threads will make
concurrent programming less error-prone and more portable.  

Thanks,
Dave

> Bill Kempf
> williamkempf_at_[hidden]
> 
> 
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