Basically the title says it all.

alias A = AliasSeq!(...);
alias B = AliasSeq!(...);
static assert(A.length == B.length);
template T(An, Bn){ ... }
alias C = AliasSeq!(T!(A[0], B[0]) ... T!(A[n], B[n])); // how to make this :/

How do I actually make the sequence C?

On Sunday, 27 November 2016 at 06:01:13 UTC, Tofu Ninja wrote:
> Basically the title says it all.
>
> alias A = AliasSeq!(...);
> alias B = AliasSeq!(...);
> static assert(A.length == B.length);
> template T(An, Bn){ ... }
> alias C = AliasSeq!(T!(A[0], B[0]) ... T!(A[n], B[n])); // how to make this :/
>
> How do I actually make the sequence C?

AliasSeq s auto expand. so

alias C = AliasSeq!(A,B);

On Sunday, 27 November 2016 at 06:01:13 UTC, Tofu Ninja wrote:
> Basically the title says it all.
>
> alias A = AliasSeq!(...);
> alias B = AliasSeq!(...);
> static assert(A.length == B.length);
> template T(An, Bn){ ... }
> alias C = AliasSeq!(T!(A[0], B[0]) ... T!(A[n], B[n])); // how to make this :/
>
> How do I actually make the sequence C?

Whoops it would help if I read your question.

You want to use Iota in conjunction with staticMap.
alias pairs(int N, alias a, alias b) = AliasSeq(a[N],b[N]);
alias C = staticMap!(T,staticMap(pairs,Iota!N));

On Sunday, 27 November 2016 at 07:38:53 UTC, Nicholas Wilson wrote:
>
> Whoops it would help if I read your question.
>
> You want to use Iota in conjunction with staticMap.
> alias pairs(int N, alias a, alias b) = AliasSeq(a[N],b[N]);
> alias C = staticMap!(T,staticMap(pairs,Iota!N));

That didn't actually work, but I got it working with:

alias pairs(size_t n) = T!(A[n], B[n]);
alias C = staticMap!(pairs, Iota!(A.length));