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Example for parentindices #28733

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Aug 19, 2018
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Example for parentindices #28733

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15 changes: 14 additions & 1 deletion base/subarray.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,20 @@ parentindices(V::SubArray) = V.indices
"""
parentindices(A)

From an array view `A`, returns the corresponding indices in the parent.
Return the indices in the [`parent`](@ref) which correspond to the array view `A`.

# Examples
```jldoctest
julia> A = [1 2; 3 4];

julia> V = view(A, 1, :)
2-element view(::Array{Int64,2}, 1, :) with eltype Int64:
1
2

julia> parentindices(V)
(1, Base.Slice(Base.OneTo(2)))
```
"""
parentindices(a::AbstractArray) = map(OneTo, size(a))

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