Re: array access "A[i]" and luabind

Sebastian Wolff wrote:
> Hi,
> 
> I try to enable array index in my classes for linear algebra.
> 
> At least the calls
> 
>   object[ integer key ]
>   object[ table key ]
> 
> should work. The idea is to make index access as general and convenient 
> as possible by providing a syntax like
>    Vector[i]
>   Matrix[i][j] -- a switch creates a temp. object onto the i-th row if ncols>1
>   Matrix[{i,j}] -- a second key type (table) which allows common keys 
> for vectors AND matrices
>   Vector[{i,0}]
>   -- both instantiations, Vector and Matrix, should be of the same data type
> 
> Somehow it is not possible to change the __index and __newindex methods 
> using luabind. Is there any way to simulate such a behavior or is 
> support like this planned?

Unfortunately there is currently no way to do this. Support for
overloading __index and __newindex is planned for 1.0. Adding this
shouldn't be terribly hard, so it could be one of the first things
addressed after the 0.9 release.

-- 
Daniel Wallin
BoostPro Computing
http://www.boostpro.com

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