Re: [Boost-users] generate structs with all combinations of members from a given struct

Subject: Re: [Boost-users] generate structs with all combinations of members from a given struct
From: Larry Evans (cppljevans_at_[hidden])
Date: 2010-01-30 12:39:34

On 01/30/10 07:35, Larry Evans wrote:
[snip]
> 
> I think the following might work:
> 
>   step1:
>     create sequence of fields:
>       seq=(field1,field2,...,fieldn)
>   step2:
>     create a sequence of a sequence of fields by fold with pop_back:
>       seq_fold=
>       ( (field1,field2,....,fieldn)
>       , (field1,field2,...,fieldn-1)
>       ...
>       , (field1)
>       )
>   step3
>     form the cross product of seq_fold using code posted
>     here:
> 
[snip]

Nope, it wouldn't work since the number of generated elements
would be 4!, not the 2^4-1 required in the OP.

Sorry for noise.

-Larry