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  UNLOAD_SCR                            Introduced: v3.12

  .  Summary

  unload_scr(str <filename>);

  .  Description

  The load_scr function can be used by a script file to load another
  script into memory ahead of time (before it is run). The unload_scr
  function should then be used to unload or take out this script when
  it is no longer needed. <filename> is the name of the script file to
  unload, and if no extension is given, ".SLC" is assumed. Note that a
  script that is currently executing or that is nested (has called the
  current script) must not be unloaded, since Telix is still executing
  it or will return to it eventually!

  .  Return Value

  If there is a problem unloading the script file, a value of -1 is
  returned. Otherwise a non-zero (TRUE) value is returned.

  .  Example

  int stat;
  stat = load_scr("TEST");     // load TEST.SLC
      ...                      // do other things
  unload_scr("TEST");          // take TEST.SLC out of memory