SETF

[Robert W. Kerns <RWK at MIT-MC>]

    Date: 9 December 1980 13:42-EST
    From: Jon L White <JONL at MIT-MC>
    Subject: SETF
    To: BUG-LISP at MIT-MC

    Why does (SETF (LDB 0303 X) 5)  wrap a lambda around things, binding
    the internal variable to  5  ?
So it can return the correct value.  There is no smarts about the value
to be stored being repeatable.  The slight improvement in code is not worth it,
since it only shows up when you use it for value (in the compiler).