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From: Pavol Droba (droba_at_[hidden])
Date: 2007-05-16 05:00:43


JD wrote:
> Hi Pavol,
> Pavol Droba wrote:
>> Just one quick question. Why do you require size specification? Range
>> have the facilities to determine the size. Why not use it?
> I don't know, I though it would be bad practice, for some reason...
> Anyway, it's fixed now, check out the new code uploaded here :

Function signature looks fine now, but if you want to be
range-compliant, there are few issues in your implementation.

instead of
        std::size_t Arg1Size = Arg1End - Arg1It;
        boost::range_size<Arg1>::type Arg1Size = size(Arg1);

The reason for this is that not all ranges have to use std::size_t and
not all ranges have random access iterators, therefors the simple
substraction of Arg1End - Arg1It might not work.

Better way would be to use std::distance, but the best way is to use
"size" since it can take advantage of internal range representation.

I don't like the usage of plane C-Arrays. Even if you wanna use them,
you should wrap the pointers to something like boost::scoped_array.
Currently your code does not provide even the basic exeption quarantie
(you will unconditionaly leak memory if an exception is thrown) and
that's bad for this kind of algorithm.


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