From ...
From: Erik Naggum <erik@naggum.no>
Subject: Re: setq x setf
Date: 2000/06/15
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* glauber <glauber.ribeiroNOglSPAM@experian.com.invalid>
| What's the difference between setq and setf?

  setq is a special operator that takes a variable (binding, really)
  and a value, and causes references to that variable (binding) after
  the setq to yield the value.

  setf is a macro that takes a place (generalized reference) and a
  value, and causes references to the place after the setf to yield
  the value, in ways appropriate for each place.  It expands into setq
  for variables (bindings), for instance.

#:Erik
-- 
  If this is not what you expected, please alter your expectations.