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add back the iteration based seeding for Array #634

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add back the iteration based seeding for Array #634

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38 changes: 38 additions & 0 deletions src/apiutils.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -46,13 +46,29 @@ function seed!(duals::AbstractArray{Dual{T,V,N}}, x,
return duals
end

function seed!(duals::Array{Dual{T,V,N}}, x,
seed::Partials{N,V} = zero(Partials{N,V})) where {T,V,N}
@inbounds for i in eachindex(duals)
duals[i] = Dual{T,V,N}(x[i], seed)
end
return duals
end

function seed!(duals::AbstractArray{Dual{T,V,N}}, x,
seeds::NTuple{N,Partials{N,V}}) where {T,V,N}
dual_inds = 1:N
duals[dual_inds] .= Dual{T,V,N}.(view(x,dual_inds), seeds)
return duals
end

function seed!(duals::Array{Dual{T,V,N}}, x,
seeds::NTuple{N,Partials{N,V}}) where {T,V,N}
@inbounds for i in 1:N
duals[i] = Dual{T,V,N}(x[i], seeds[i])
end
return duals
end

function seed!(duals::AbstractArray{Dual{T,V,N}}, x, index,
seed::Partials{N,V} = zero(Partials{N,V})) where {T,V,N}
offset = index - 1
Expand All @@ -61,6 +77,17 @@ function seed!(duals::AbstractArray{Dual{T,V,N}}, x, index,
return duals
end

function seed!(duals::Array{Dual{T,V,N}}, x, index,
seed::Partials{N,V} = zero(Partials{N,V})) where {T,V,N}
offset = index - 1
@inbounds for i in 1:N
j = i + offset
duals[j] = Dual{T,V,N}(x[j], seed)
end
return duals
end


function seed!(duals::AbstractArray{Dual{T,V,N}}, x, index,
seeds::NTuple{N,Partials{N,V}}, chunksize = N) where {T,V,N}
offset = index - 1
Expand All @@ -69,3 +96,14 @@ function seed!(duals::AbstractArray{Dual{T,V,N}}, x, index,
duals[dual_inds] .= Dual{T,V,N}.(view(x, dual_inds), getindex.(Ref(seeds), seed_inds))
return duals
end


function seed!(duals::Array{Dual{T,V,N}}, x, index,
seeds::NTuple{N,Partials{N,V}}, chunksize = N) where {T,V,N}
offset = index - 1
@inbounds for i in 1:chunksize
j = i + offset
duals[j] = Dual{T,V,N}(x[j], seeds[i])
end
return duals
end