[clisp-list] Re: FFI: variable size values

[Sam S. <sd...@gn...>]

> * In message <9F8582E37B2EE5498E76392AEDDCD3FE05F4B8AD@G8PQD.blf01.telekom.de>
> * On the subject of "FFI: variable size values"
> * Sent on Tue, 5 Aug 2003 09:27:14 +0200
> * Honorable "Hoehle, Joerg-Cyril" <Joe...@t-...> writes:
>
> Your attempt IMHO is a misleaded attempt at interfacing, so I'll not
> comment it further.

Jorg, __PLEASE__ do explain to me why I have to use the "garbage"
variable!!!

void* null_terminate (void *garbage, void *data, int size, int num_el) {
  static char buf[BUFSIZ];
  if (size*num_el>BUFSIZ) abort();
  memset(buf,0,BUFSIZ*sizeof(char));
  memcpy(buf,data,size*num_el);
  return buf;
}

(def-call-out null_terminate_float
  (:arguments (prob-vec c-pointer) (size int) (num int))
  (:return-type (c-array-max float #.MAX_STATE))
  (:name "null_terminate"))

why do I see "prob-vec" in "data" not in "garbage"??!!

-- 
Sam Steingold (http://www.podval.org/~sds) running w2k
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There is Truth, and its value is T.  Or just non-NIL.  So 0 is True!