A thought on function chaining with constant Arguments

General Usage
2

Wouldn’t that be the classical case for recursion?

function chain(x::Int, ca::Int, fs::Tuple)
    if length(fs) == 1
        fs[1](x, ca)
    else
        chain(fs[1](x,ca), ca, fs[2:end])
    end
end

julia> @btime chain(42, 13, (+,*,+,*,+))
  1.488 μs (8 allocations: 480 bytes)
9477

not so fast as your preallocated chains, but simpler. If your chains vary, this would be certainly preferable.

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