Thanks!
On Monday, February 15, 2016 at 2:28:19 PM UTC+1, Bart Janssens wrote:
>
> There is the parameters field of the types, but I'm not sure if that's
> considered private. You can do
> Array{Float64, 1}.parameters[2]
> to get 1, for example.
>
> On Monday, February 15, 2016 at 2:14:35 PM UTC+1, jw3126 wrote:
>>
>> I have an instance of a parametric type, is there a canonical way to get
>> the parameter values?
>> For example I could have some Array{T, d} and want to know whether T is
>> Float64 and what its dimension is.
>> The only way of doing this I am aware of is writing code like:
>>
>> dimension{T, dim}(arr::Array{T, dim}) = dim
>> numbertype{T, dim}(arr::Array{T, dim}) = T
>>
>> Is there a built-in function to do this? And maybe a way to get parameter
>> values for arbitrary types?
>> E.g. I have some instance of MyType{S, T, U, n} is and want to know U. Do
>> I have to repeat code like the above each time I define a new parametric
>> type?
>>
>
