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Merged
dlfivefifty merged 3 commits into from
Mar 28, 2023
Merged

Structured Broadcasting #228

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4ea8c89
Structured Broadcasting
dlfivefifty Mar 28, 2023
1ac2678
add jishnubs tests
dlfivefifty Mar 28, 2023
a955f69
Update runtests.jl
dlfivefifty Mar 28, 2023
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3 changes: 3 additions & 0 deletions src/fillbroadcast.jl
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Expand Up @@ -247,3 +247,6 @@ broadcasted(::DefaultArrayStyle{N}, ::typeof(Base.literal_pow), ::Base.RefValue{
broadcasted(::DefaultArrayStyle{N}, ::typeof(Base.literal_pow), ::Base.RefValue{typeof(^)}, r::Ones{T,N}, ::Base.RefValue{Val{k}}) where {T,N,k} = Ones{T}(axes(r))
broadcasted(::DefaultArrayStyle{N}, ::typeof(Base.literal_pow), ::Base.RefValue{typeof(^)}, r::Zeros{T,N}, ::Base.RefValue{Val{0}}) where {T,N} = Ones{T}(axes(r))
broadcasted(::DefaultArrayStyle{N}, ::typeof(Base.literal_pow), ::Base.RefValue{typeof(^)}, r::Zeros{T,N}, ::Base.RefValue{Val{k}}) where {T,N,k} = Zeros{T}(axes(r))

# supports structured broadcast
LinearAlgebra.fzero(x::Zeros) = zero(eltype(x))
13 changes: 13 additions & 0 deletions test/runtests.jl
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Expand Up @@ -1469,3 +1469,16 @@ end
@test cor(Fill(3, 4, 5)) ≈ cor(fill(3, 4, 5)) nans=true
@test cor(Fill(3, 4, 5), dims=2) ≈ cor(fill(3, 4, 5), dims=2) nans=true
end

@testset "Structured broadcast" begin
D = Diagonal(1:5)
@test D + Zeros(5,5) isa Diagonal
@test D - Zeros(5,5) isa Diagonal
@test Zeros(5,5) - D isa Diagonal
@test Zeros(5,5) + D isa Diagonal
f = (x,y) -> x+1
@test f.(D, Zeros(5,5)) isa Matrix

S = Symmetric(randn(5,5))
S + Zeros(5,5)
end