Q about template for matching arrays

[Kirk McDonald]

Bill Baxter wrote:
> I'd like to write a template function something like:
> 
>    T foo(T,S)(S x)
> 
> that takes arrays of various kinds and returns an element of the base 
> type (well really something derived from the base type, but that part's 
> easy).
> 
> The trick is that what I'd really like is for it be able to be used in 
> all of the following ways:
> 
>   // IFTI
>   foo(3)    // T=int S=int
>   foo([3])  // T=int S=int[]
>   foo([[3]])  // T=int S=int[][]
>   foo([[[3]]])  // T=int S=int[][][]
>   ... etc
> 
>   // Base type explicit
>   foo!(float)(3)  // T=float S=float
>   foo!(float)([3])  // T=float S=float[]
>   foo!(float)([[3]])  // T=float S=float[][]
>   ... etc
> 
> It's easy if you say you have to call it like foo!(float[][])([[3]]), 
> but that's annoying.
> 
> Any bright ideas?
> 
> --bb

This only works for dynamic arrays, but:

typeof(T.init[0]) foo(T)(T x) {}

-- 
Kirk McDonald
Pyd: Wrapping Python with D
http://pyd.dsource.org