Fix empty StridedView broadcasting

Project.toml

@@ -1,6 +1,6 @@
 name = "Strided"
 uuid = "5e0ebb24-38b0-5f93-81fe-25c709ecae67"
-version = "2.3.4"
+version = "2.3.5"
 authors = ["Lukas Devos <lukas.devos@ugent.be>", "Maarten Van Damme <maartenvd1994@gmail.com>", "Jutho Haegeman <jutho.haegeman@ugent.be>"]
 
 [deps]

src/broadcast.jl

@@ -30,13 +30,16 @@ Base.dotview(a::StridedView{<:Any, N}, I::Vararg{SliceIndex, N}) where {N} = get
         dest::StridedView{<:Any, N},
         bc::Broadcasted{StridedArrayStyle{N}}
     ) where {N}
+    dims = size(dest)
+    any(isequal(0), dims) && return dest
+
     # convert to map
 
     # flatten and only keep the StridedView arguments
     # promote StridedView to have same size, by giving artificial zero strides
-    stridedargs = promoteshape(size(dest), capturestridedargs(bc)...)
+    stridedargs = promoteshape(dims, capturestridedargs(bc)...)
     c = make_capture(bc)
-    _mapreduce_fuse!(c, nothing, nothing, size(dest), (dest, stridedargs...))
+    _mapreduce_fuse!(c, nothing, nothing, dims, (dest, stridedargs...))
     return dest
 end
 

test/othertests.jl

@@ -65,6 +65,14 @@ end
     end
 end
 
+@testset "broadcast with zero-length StridedView" begin
+    @testset for T in (Float32, Float64, ComplexF32, ComplexF64)
+        A1 = StridedView(zeros(T, (2, 0)))
+        A2 = StridedView(zeros(T, (2, 0)))
+        @test (A1 .+ A2) == StridedView(zeros(T, (2, 0)))
+    end
+end
+
 @testset "mapreduce with StridedView" begin
     @testset for T in (Float32, Float64, ComplexF32, ComplexF64)
         R1 = rand(T, (10, 10, 10, 10, 10, 10))