anything like C++ references?
Tom Plunket
tomas at fancy.org
Tue Jul 15 18:16:40 EDT 2003
Stephen Horne wrote:
> std::string x = "123";
> std::string y = x;
>
> // At this point, in most implementations, x and y are bound to the
> // same object due to a lazy copy optimisation.
Actually, that isn't the case these days. I'm sure there are
some who do this optimization still, but it is incredibly hard to
do so in a thread-safe manner so all of the heavies as far as I
know don't do it anymore.
-tom!
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