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Re: [Emacs-diffs] /srv/bzr/emacs/trunk r104642: * src/process.c (Fset_pr


From: Deniz Dogan
Subject: Re: [Emacs-diffs] /srv/bzr/emacs/trunk r104642: * src/process.c (Fset_process_buffer): Clarify return value in docstring.
Date: Tue, 21 Jun 2011 22:17:21 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10

On 2011-06-21 18:33, Stefan Monnier wrote:
What about `display-buffer'? It certainly exists for its side effect,
but it returns the window, a fact which is both documented and used.
If it were a new function, would you oppose doing so?

No, I do not systematically oppose side-effecting functions which return
a value as well.  That would be much too drastic (e.g. how would you
figure out which window was used by `display-buffer'?).
I;.e. the return value is really indispensable.  Contrast this with
set-process-buffer whose return value is always available to the caller
before even calling it.


I'm just wondering: can I rely on `set-process-buffer' always returning the buffer from now on or is it prone to change given the fact that it is "accidental"?

Thanks,
Deniz



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