Add handling in cat for non-numeric element types

Author: DrChainsaw

src/fillcat.jl

@@ -7,7 +7,11 @@ function Base.cat_t(::Type{T}, fs::Fill...; dims) where T
 
     # When dims is a tuple the output gets zero padded and we can't use a Fill unless it is all zeros
     # There might be some cases when it does not get padded which are not considered here
-    allvals[] !== zero(T) && sum(catdims) > 1 && return Base._cat_t(dims, T, fs...)
+    
+    if sum(catdims) > 1 
+        allvals[] isa Number || return Base._cat_t(dims, T, fs...)
+        allvals[] !== zero(T) && return Base._cat_t(dims, T, fs...)
+    end
 
     shape = cat_shape_fill(catdims, fs)
     return Fill(convert(T, fs[1].value), shape)

test/runtests.jl

@@ -1254,6 +1254,10 @@ end
                 @test res isa Fill
                 @test res == cat(fill(1.0, s), fill(1, s); dims=dims)
 
+                res = cat(Fill(:a, s), Fill(:a, s); dims=dims)
+                @test res isa Fill
+                @test res == cat(fill(:a, s), fill(:a, s);dims=dims)
+
                 @test cat(Fill(1, s), Fill(2, s);dims=dims) == cat(fill(1, s), fill(2, s);dims=dims)
             end
             @testset "Dim $dims" for dims in (