ReinterpretArray: avoid nesting (JuliaLang#34625)

Liozou · Feb 3, 2020 · af17bb6 · af17bb6
1 parent c3f6542
commit af17bb6
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diff --git a/base/reinterpretarray.jl b/base/reinterpretarray.jl
@@ -45,6 +45,8 @@ struct ReinterpretArray{T,N,S,A<:AbstractArray{S, N}} <: AbstractArray{T, N}
  end
 end
 
+reinterpret(::Type{T}, a::ReinterpretArray) where {T} = reinterpret(T, a.parent)
+
 # Definition of StridedArray
 StridedFastContiguousSubArray{T,N,A<:DenseArray} = FastContiguousSubArray{T,N,A}
 StridedReinterpretArray{T,N,A<:Union{DenseArray,StridedFastContiguousSubArray}} = ReinterpretArray{T,N,S,A} where S

diff --git a/test/reinterpretarray.jl b/test/reinterpretarray.jl
@@ -192,6 +192,9 @@ end
  @test x1[] === x2[] === Int64(2)
 end
 
+# avoid nesting
+@test parent(reinterpret(eltype(A), reinterpret(eltype(B), A))) === A
+
 # Test 0-dimensional Arrays
 A = zeros(UInt32)
 B = reinterpret(Int32,A)