pointer method for SizedArray (#829)

Author: mateuszbaran

src/SizedArray.jl

@@ -119,6 +119,8 @@ end
 
 Base.parent(sa::SizedArray) = sa.data
 
+Base.pointer(sa::SizedArray) = pointer(sa.data)
+
 const SizedVector{S,T} = SizedArray{Tuple{S},T,1,1}
 
 @inline function SizedVector{S}(a::TData) where {S,T,TData<:AbstractVector{T}}

test/SizedArray.jl

@@ -82,6 +82,9 @@
     # parent
     @test parent(sa) === sa.data
 
+    # pointer
+    @test pointer(sa) === pointer(sa.data)
+
     @testset "vec" begin
         sa2 = SizedArray{Tuple{2, 2}, Int}([1, 2, 3, 4])
         @test (@inferred vec(sa2)) isa SizedVector{4, Int}