Re: [Monotone-devel] using empty() instead of size()

[Jens Finkhäuser]

Spooky.

On Mon, Sep 22, 2008 at 11:18:14PM +0200, Markus Wanner wrote:
> Hi,
>
> Zack Weinberg wrote:
>> I'm honestly surprised .empty() and .size() == 0 don't generate
>> identical code, but hey.  Thanks!
>
> For example for doubly linked lists, it's pretty simple to tell whether  
> they are empty or not, but counting the number of elements in the list  
> requires traversing the list.
>
> I'm not sure how other containers are affected. Plus some STL  
> implementations might have optimizations for .size() to not require it to 
> traverse the elements. However, its an optimization not required by the 
> standard, AFAIK.
>
> Regards
>
> Markus
>
>
>
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