Check amount of passed arguments

[thacuber2a03]

how would I check the amount of arguments the user passed to a function, or at least check if there's an argument after the current one? I wanna make a function with 4 optional arguments

[ooichu]

Method 1:

(= my-func (fn (arg opt-1 opt-2 opt-3 opt-4)
  ; do something with that
))

Method 2:

(= my-func (fn (arg . opt)
  ; now, 'opt' is list of arguments after 'arg'
))

If you're asking about writing a C function for fe, you should check the argument list before getting an optional argument (via fe_nextarg) to see if it is nil (via fe_isnil). If the argument list is nil, it means that there are no further arguments.

[thacuber2a03]

I figured it out a long time ago, but still thanks lol