fix issue #22

Author: Alexander-Barth

src/cfvariable.jl

@@ -567,6 +567,12 @@ fillmode(v::CFVariable) = fillmode(v.var)
 
 Base.Array(v::AbstractVariable{T,N}) where {T,N} = v[ntuple(i -> :, Val(N))...]
 
+function Base.Array(v::AbstractVariable{T,0}) where {T}
+    a = Array{T,0}(undef,size(v))
+    # only a single element to load
+    a .= v
+    return a
+end
 
 """
     CommonDataModel.load!(ncvar::CFVariable, data, buffer, indices)

test/test_variable.jl

@@ -285,3 +285,9 @@ data2 = zeros(Int,1)
 data2 = zeros(Int,10)
 # asking too many elements
 @test_throws BoundsError load!(ds["data"].var,data2,1:10)
+
+# issue 22
+filename = tempname()
+ds = TDS(filename, "c")
+v = defVar(ds, "a", Int32, ())
+@test ndims(Array(v)) == ndims(v) == 0