> stefan monnier
>>> There remain some questions on this patch:
>>> 1- When `filedata` is neither a number nor a string this is treated
>>> the
>>>    same as an empty string.  Is that right?  Or should it just never
>>>    happen (in which case we should probably catch this case and signal
>>>    an error).

(still have not rediscovered the other 2 bugs i mentioned in my last
message.)

when filedata's value is of type character, it is treated as if it were
an integer.  for all the other datatypes i tested, yes, the function
behaves as if the value is an empty string.

this diff shows calling the function with different filedata values:

https://codeberg.org/ozzloy/emacs/commit/cb8332b37b94e836e3072864594d9bdb1c0ef161
(also available as attached file filedata-value-of-various-types.diff)