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bitgraph lib utils array.ex
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lib/utils/array.ex 

defmodule BitGraph.Array do

  def new(size) do

    :atomics.new(size, signed: :true)

  end



  ## Get element by (1-based) index

  def get(array, idx) do

    :atomics.get(array, idx)

  end



  def put(array, idx, value) when is_integer(value) do

    :atomics.put(array, idx, value)

  end



  def to_list(array) do

    Enum.map(1..size(array), fn idx -> :atomics.get(array, idx) end)

  end



  def reduce(array, initial_value, reducer \\ fn el, acc -> [el | acc] end) when is_function(reducer) do

    Enum.reduce(1..size(array), initial_value, fn idx, acc ->

      reducer.(:atomics.get(array, idx), acc)

    end)

  end



  def size(array) do

    :atomics.info(array)[:size]

  end

end