Make generic atomicity.h use gthr.h mutexes

[Phil Edwards]

On Fri, Nov 08, 2002 at 06:12:04PM +0000, Nathan Myers wrote:
> It's possible to run threads safely in a system with a non-thread-safe 
> string implementation.  It might even be the common case on such 
> systems.  Embedded system developers are used to working with 
> documented limitations.  What they need is a warning, and where
> possible, a choice.

Post a patch.  I'm not sure what you're trying to suggest.  


> > elsewhere.  Turns out they're used at least in ios_base, handling callbacks.
> > (Talk about a rarely-used feature...)
> 
> ios_base callbacks are essential for nontrivial operators << and >>.
> Such usage is properly buried in implementation code, so it's no 
> surprise that we don't notice it much.

I really like the idea of ios_base callbacks, I just think the specification
is a bit lacking.  It's hard coming up with a good example, too, for the
documentation.


Phil

-- 
I would therefore like to posit that computing's central challenge, viz. "How
not to make a mess of it," has /not/ been met.
                                                 - Edsger Dijkstra, 1930-2002