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

From: Larry Evans (cppljevans_at_[hidden])
Date: 2005-07-25 19:06:10

On 07/24/2005 05:45 PM, Alex Mendes da Costa wrote:
[snip]
> Given N sequences, generate all the N-tuples s.t. the i'th element in
> each tuple is drawn from the i'th sequence.
> 
> For example, 
>   if sequence S1 is { 1, 2, 3 } 
 >  and sequence S2 is { 10, 20 },
>I need to generate these tuples: 
>  (1, 10), (2, 10), (1, 20), (2, 20).

So the number of generated tuples is N*(min(S1.size(),S2.size).  IOW,
it's the same number as elements in a matrix of rank N*M where M is the
size of the smallest of the N sequences.

Is that right?