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* doc/lispref/variables.texi (special-variable-p): Clarify limits

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Stefan Monnier 2020-02-13 15:01:28 -05:00
parent 9f6a4bbcc9
commit 4d8d25d641
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doc/lispref/variables.texi
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@ -1229,6 +1229,10 @@ This function returns non-@code{nil} if @var{symbol} is a special
variable (i.e., it has a @code{defvar}, @code{defcustom}, or
@code{defconst} variable definition). Otherwise, the return value is
@code{nil}.
Note that since this is a function, it can only return
non-@code{nil} for variables which are permanently special, but not
for those that are only special in the current lexical scope.
@end defun
The use of a special variable as a formal argument in a function is