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Re: Optimization/clarity coding : what is gcc able to do for me ?
On Sat, Jan 15, 2005 at 04:21:23PM +0100, jlh wrote:
>
> Nick NoSpam wrote:
> > So since one thread is reading (size() is a const method), and another may
> > be writing (perhaps adding new elements), it's fine for such implementations.
>
> Only if you can ensure both operation to not happen at the same time. If you
> call size() while another thread is just resizing the vector, you might get
> wrong results.
You are laboring under a mistaken impression: the C++ standard does not
require this level of thread safety and no C++ compiler or library
provider provides that kind of thread safety (as the cost would be
enormous for non-threaded programs).