Disambiguate Zeros * OneElement (#311)

Author: jishnub

src/oneelement.jl

@@ -82,6 +82,7 @@ function *(A::AbstractFillMatrix, x::OneElementVector)
     val = getindex_value(A) * getindex_value(x)
     Fill(val, (axes(A,1),))
 end
+*(A::AbstractZerosMatrix, x::OneElementVector) = mult_zeros(A, x)
 
 function *(A::OneElementMatrix, B::AbstractFillVector)
     check_matmul_sizes(A, B)

test/runtests.jl

@@ -2023,6 +2023,8 @@ end
                 @test F * x isa Fill
                 @test F * x == Array(F) * Array(x)
             end
+
+            @test Zeros{Int8}(2,2) * OneElement{Int16}(2,2) === Zeros{Int16}(2)
         end
         @testset "OneElementMatrix * AbstractFillVector" begin
             @testset for ind in testinds(A)