I am trying to decide on a policy regarding the usage of function parameters for output in our C/C++ code.

It is clear to me that the policy should indicate that all parameters used for output should be grouped together either at the end or start of the function parameter list, but I am not sure there are any good reason to prefer either of these locations.

Do you know of any reason to prefer grouping them at the start or at the end?

c++ c coding-style
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