Re: [boost] [fusion] More quanfusion

From: Andy Little (andy_at_[hidden])
Date: 2006-09-14 09:39:03

"David Abrahams" <dave_at_[hidden]> wrote in message
news:874pvayao2.fsf_at_pereiro.luannocracy.com...
> "Andy Little" <andy_at_[hidden]> writes:
>
>> "David Abrahams" wrote
>>> Joel de Guzman  writes:
>>>
>>>> advance_iterator looks general enough.
>>>
>>> What *is* an advance_iterator?
>>
>> FWIW:
>>
>>  fusion::advance_iterator<
>>     Sequence,                      // the sequence to advance over
>>     Stride,                             // number of positions in underlying
>>                                           //sequence to move on 'next'
>>     StridedPosition,            //  underlying sequence::position *
>>                                           //    Stride + Offset
>>     Offset                             // offset in underlying sequence units
>>>
>>
>> The main use is to  return a column in a linear sequence representing a
>> matrix.
>
> That's a well-known idea already in the literature;

Its not just an idea. I got one that works with fusion :-)

it's known as a
> "strided iterator."  Can we use the common terminology?

OK, but it doesnt sound very cool, compared to advance_iterator. IMO everything
in fusion should have a cool name :-)

Same with inner_product. dot_product is way cooooler.

regards
Andy Little