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Update documentation of 'indirect-function'

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* doc/lispref/eval.texi (Function Indirection): Update the
documentation of 'indirect-function'.
This commit is contained in:
Eli Zaretskii 2016-01-10 20:22:01 +02:00
parent c6a5314302
commit 6ad0d39680
2 changed files with 7 additions and 6 deletions
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11
doc/lispref/eval.texi
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@ -328,13 +328,12 @@ This function returns the meaning of @var{function} as a function. If
definition and starts over with that value. If @var{function} is not a
symbol, then it returns @var{function} itself.
This function signals a @code{void-function} error if the final symbol
is unbound and optional argument @var{noerror} is @code{nil} or
omitted. Otherwise, if @var{noerror} is non-@code{nil}, it returns
@code{nil} if the final symbol is unbound.
This function returns @code{nil} if the final symbol is unbound. It
signals a @code{cyclic-function-indirection} error if there is a loop
in the chain of symbols.
It signals a @code{cyclic-function-indirection} error if there is a
loop in the chain of symbols.
The optional argument @var{noerror} is obsolete, kept for backward
compatibility, and has no effect.
Here is how you could define @code{indirect-function} in Lisp:

2
etc/NEWS
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@ -1202,10 +1202,12 @@ to the special value `dragging' in the body of the form.
has any effect. (This change was made in Emacs 24.4 but was not
advertised at the time.)
+++
** `indirect-function' does not signal `void-function' any more.
This is mostly a bug-fix, since this change was missed back in 24.4 when
symbol-function was changed not to signal `void-function' any more.
+++
*** As a consequence, the second arg of `indirect-function' is now obsolete.
** Comint, term, and compile do not set the EMACS env var any more.