Re: [boost] Proposed addition to the iterator library for iterating over all tuples.

From: David Abrahams (dave_at_[hidden])
Date: 2005-07-26 10:39:06

Larry Evans <cppljevans_at_[hidden]> writes:

> On 07/26/2005 07:25 AM, David Abrahams wrote:
>> Alex Mendes da Costa <alexmdac_at_[hidden]> writes:
>> 
>> 
>>>The iterator that I am proposing would provide the sequence (1,10),
>>>(2,10), (1,20), (2,20).
>> 
>> 
>> Oh, you want a cross-product iterator.  Interesting idea.
>> 
> BTW, the J or apl term for this would be "outer-product"
> (produced with '/' operator) applied to the "append" operator
> (','):
>
>    ,/
>

Wow, I'm impressed.  I usedta know APL inside-out, but it's been 25
years.  But that's just an ASCII translation of the real symbol, no?

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com