On 12 October 2012 21:23, Andy Shevchenko <andy.shevche...@gmail.com> wrote:
> 1. This is an equivalent of
> if (last_dw && (last_bus_id == ... ) && (last_dw == dw))
>  return false;
> 2. In case dw is always non-NULL the last_dw == dw is false if last_dw is 
> NULL.
>
> Where am I wrong?

Nowhere, I am drunk ;)

--
viresh
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