ArrayInitializers.jl

Array initializers for Julia
Author mkitti
Popularity
5 Stars
Updated Last
1 Year Ago
Started In
January 2023

ArrayInitializers.jl

Stable Dev Build Status

Create array initializers and allocate arrays without curly braces in Julia. The initializer instances can be passed as the first argument of an AbstractArray constructor to initialize the array. If the initializer is typed, the element type of the AbstractArray constructor is optional.

Compatible with OffsetArrays and other subtypes of Julia arrays that implement Base.fill!.

julia> using ArrayInitializers

julia> fives = init(5)
ArrayInitializers.FillArrayInitializer{Int64}(5)

julia> Array(fives, 3)
3-element Vector{Int64}:
 5
 5
 5

julia> Vector(fives, 3)
3-element Vector{Any}:
 5
 5
 5

julia> Array{Float64}(fives, 3)
3-element Vector{Float64}:
 5.0
 5.0
 5.0

julia> Array(oneinit(Int), 5)
5-element Vector{Int64}:
 1
 1
 1
 1
 1

julia> Array(zeroinit(Float64), 5)
5-element Vector{Float64}:
 0.0
 0.0
 0.0
 0.0
 0.0

julia> Array(undeftype(Rational), 3, 2)
3×2 Matrix{Rational}:
 #undef  #undef
 #undef  #undef
 #undef  #undef