Commit 91a15bc6 authored by Stefan Monnier's avatar Stefan Monnier
Browse files

* src/eval.c (Fquote): Document its non-consing behavior.

Fixes: debbugs:9482
parent e69df516
2011-09-16 Stefan Monnier <monnier@iro.umontreal.ca>
* eval.c (Fquote): Document its non-consing behavior (bug#9482).
2011-09-16 Eli Zaretskii <eliz@gnu.org>
* image.c (tiff_handler): Work around a bug in MinGW GCC 3.x (see
......
......@@ -475,6 +475,14 @@ usage: (setq [SYM VAL]...) */)
DEFUN ("quote", Fquote, Squote, 1, UNEVALLED, 0,
doc: /* Return the argument, without evaluating it. `(quote x)' yields `x'.
Warning: `quote' does not construct its return value, but just returns
the value that was pre-constructed by the Lisp reader (see info node
`(elisp)Printed Representation').
This means that '(a . b) is not identical to (cons 'a 'b): the former
does not cons. Quoting should be reserved for constants that will
never be modified by side-effects, unless you like self-modifying code.
See the common pitfall in info node `(elisp)Rearrangement' for an example
of unexpected results when a quoted object is modified.
usage: (quote ARG) */)
(Lisp_Object args)
{
......
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