Re: [julia-users] Is there a way to define abstract type from a type in base.jl

I just find a solution: use AbstractArray(I don't know if this appears only in v0.4,but this is what I need I think!) thanks folks! 2015-10-15 20:53 GMT+08:00 Roger Luo : > I just start to write the program so I may not have any code to post. > I want to define a

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

On Thu, Oct 15, 2015 at 8:53 AM, Roger Luo wrote: > I just start to write the program so I may not have any code to post. > I want to define a position of a particle like > > type particle{T} > pos::T > end > > but I hope the type of pos can be limited rather than the

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

It's like what if I want to define a 3-dimension linear space R^3 as an abstract type and the Array{Float,3} is a subtype-like type of the abstract type 3-dimension linear space? I want a linear space as abstract type and some subtypes that can do the linear algebra. 2015-09-25 20:36 GMT+08:00

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

I just start to write the program so I may not have any code to post. I want to define a position of a particle like type particle{T} pos::T end but I hope the type of pos can be limited rather than the supertype any 2015-10-15 20:51 GMT+08:00 Roger Luo : > It's

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

On Thu, Oct 15, 2015 at 10:05 AM, Roger Luo wrote: > But what if I want to restrict the number of a array I use? > if the type is like > > type particle > pos > end > > and I want to restrict the pos's type to be an Array but the dimension > should be 1,but do not

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

Thanks! 在 2015年10月15日星期四 UTC+8下午10:13:08，Yichao Yu写道： > > On Thu, Oct 15, 2015 at 10:05 AM, Roger Luo > wrote: > > But what if I want to restrict the number of a array I use? > > if the type is like > > > > type particle > > pos > > end > > > > and I want to

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

But what if I want to restrict the number of a array I use? if the type is like type particle pos end and I want to restrict the pos's type to be an Array but the dimension should be 1,but do not restrict the Type of the Array or is there any other type can act like a vector but not the

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

Julia's parametric types are invariant (except tuples). To figure out what that means have a read through http://docs.julialang.org/en/release-0.4/manual/types/#parametric-composite-types > How to make Array{BigFloat,1}<:Array{Real,1}? This is always false (that is invariance). But presumably

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

Thanks,I've read about the arrays,but just don't know how to define some existed type. though a type may be define as: type a{T<:Integer}<:Real xxx end but that's will work in my function.I tried to pass different types into a function, so I asked this question. still do not understand why can

Re: [julia-users] Is there a way to define abstract type from a type in base.jl

I have some trouble understand your question. On Fri, Sep 25, 2015 at 8:22 AM, Roger Luo wrote: > Thanks,I've read about the arrays,but just don't know how to define some > existed type. You cannot redefine a type. Or do you mean how are certain existed types