Re: [julia-users] isa(eltype(X), T) versus iseltype(X, T)

[Júlio Hoffimann]

Thank you Mauro.

-Júlio

Em quinta-feira, 5 de março de 2015 22:35:56 UTC-8, Mauro escreveu:
>
> Consider 
>
> julia> eltype(Array(Int,1))<:Integer 
> true 
>
> julia> isa(5, Number) 
> true 
>
> julia> isa(Int, Number) 
> false 
>
> julia> isa(Int, DataType) 
> true 
>
> isa tests whether something is an instance of a type.  As Int is not an 
> instance of Integer but a subtype isa(Int,Integer)==false. 
>
> On Fri, 2015-03-06 at 07:09, Júlio Hoffimann <julio.h...@gmail.com 
> <javascript:>> wrote: 
> > Hi, 
> > 
> > Someone could please explain the difference? 
> > 
> > julia> iseltype(Array(Int,1), Integer) 
> > true 
> > 
> > julia> isa(eltype(Array(Int,1)),Integer) 
> > false 
> > 
> > Thanks, 
> > Júlio. 
>
>