Concrete Example 0805: how to prevent using global variable in the module?

General Usage
2

It will be much better if you initialize mussigma inside the init function and return it to the user.
Then pass mussigma to the next function that will use it as a parameter.

Something like:

module Mixture

  export init, compute

  function init(...)
     mussigma = Vector{...}(undef,...)
     ...
     return mussigma
  end

  function compute(mussigma)
    ...
    return result
  end

end

using Mixture

mussigma = init(...)

result = compute(mussigma)

Try to forget completely about the possibility of using global variables, that is the best advice.

3 Likes