nRESULT is used in the extremely rare cases where you need to change the date of the tokens generated by a macro.
As it is seldom used, there are no compiler messages to warn you that you may have forgotten to set a value to nRESULT.
If you do not set a value for nRESULT, the default case, then it will be assume to be 0 (zero).
See also: macros resulting actions.
Topic 172360, last updated on 19-Apr-2020