Arguments: sym
This function returns two values. The first is the global value for
the special variable named by the symbol sym,
ignoring any bindings on the current stack-group (unix) or thread
(windows) and the second is t if the variable has a value (in the
sense of cl:boundp). Otherwise the first value will
be nil and the second will be the symbol
:unbound. (Returning two values allows distinguishing
between bound with value nil and unbound. Note that this function does
not error if the symbol has no global value.)
This function may be setf. This is not a normal thing to do (except with setq-default usually as part of initialization) and is intended only for obscure system-hacking purposes. This function is intended for use by debuggers and other systems and is not appropriate for normal programming.
The macro setq-default sets the global-symbol-value.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.