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  1. Path: sparky!uunet!wupost!crcnis1.unl.edu!moe.ksu.ksu.edu!mccall!info-tpu-newsgate!list
  2. Newsgroups: vmsnet.tpu
  3. Subject: LIB$FIND_IMAGE_SYMBOL
  4. Message-ID: <01GTB7DRDY429JD39M@WVNVMS.WVNET.EDU>
  5. From: Tom Williams <williams@ab.wvnet.edu>
  6. Date: Sat, 09 Jan 1993 10:10:38 -0500 (EST)
  7. Reply-To: Tom Williams <WILLIAMS@AB.WVNET.EDU>
  8. Organization: The Internet
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  11. X-Listname: Text Processing Utility (TPU) Language Discussion List
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  17.  
  18. > From: Comet <COMET@us.oracle.com>
  19. > Subject: LIB$FIND_IMAGE_SYMBOL
  20. > To: INFO-TPU@SHSU.edu
  21. >
  22. > I remember seeing on a DECUS symposium tape, once upon a time, a TPU
  23. > CALL_USER routine that used LIB$FIND_IMAGE_SYMBOL to activate
  24. > arbitrary routines in arbitrary (`correctly' linked) shareable images
  25. > to do such things as, ummm, maybe finding the sine of some angle.
  26. >
  27. > Does this sound at all familiar?
  28.  
  29.           Yes, he said, blushing.  I wrote it.  It's a pair of
  30.           routines, as I recall (long time since I've touched it).
  31.           One of them builds a few arrays of arguments for the call;
  32.           the other one invokes LIB$FIND_IMAGE_SYMBOL and LIB$CALLG.
  33.           I will get the sources out of mothballs and send them out
  34.           some time in the next week or so, if you can's find it
  35.           elsewhere.
  36.  
  37.           Currently, the routines only handle integers and strings.
  38.           Maybe they'll evolve.
  39.  
  40.                                                 -Tom Williams
  41.                                                  Computer Center Manager
  42.                                                  Alderson-Broaddus College
  43.                                                  WILLIAMS@AB.WVNET.EDU
  44.