How to make a recursive function call without using its name

Question

There are many functions of the same type of FI, where I is the number and index of the function, for example:

byte F5( byte COMMAND ); byte F3456( byte COMMAND );

The function performs actions in accordance with the COMMAND command. The function COMMAND_ID function returns its index I

Question: How to call a function recursively without using its name (FI ())? Perhaps somehow through this?

Thank you.

But you can find out what is the reason for the use of the name f-ii?
Adding pointers to an array and calling on an index is not it?
That is, the recursive function call is interested in itself from itself without specifying a name.
For debugging purposes, a lot of algorithms are flashed into the firmware at once, and they switch over to the dynamics.
It is very inconvenient, as in the case of debug output (which indicates the index of the algorithm), and in the case of a recursive call, to use a specific function name.

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