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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Manuel Giraud <manuel@ledu-giraud.fr>
Cc: Andreas Schwab <schwab@suse.de>,  "emacs-devel" <emacs-devel@gnu.org>
Subject: Re: Some Emacs outside Emacs
Date: Fri, 29 Jul 2022 10:37:04 -0400	[thread overview]
Message-ID: <jwvv8rg7zt9.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87wnbx39vl.fsf@elite.giraud> (Manuel Giraud's message of "Thu, 28 Jul 2022 10:43:42 +0200")

> --8<---------------cut here---------------start------------->8---
>   Lisp_Object frame;
>   XFontSet fs;
>  
>   frame = menu_bar_to_frame(mw);
>   if (FRAMEP (frame))
>     fs = FRAME_XIC_FONTSET (XFRAME (frame));
> --8<---------------cut here---------------end--------------->8---

Style comment: I recommend you try to initialize your variables directly
in their declaration, as in:

    
   
    Lisp_Object frame = menu_bar_to_frame(mw);
    XFontSet fs = (FRAMEP (frame)
                   ? FRAME_XIC_FONTSET (XFRAME (frame))
                   : ...);

This eliminates the possibility of having the variable be uninitialized,
and reduces the "risk" of leaving a unused variable declaration.
It also often results in more concise code.


        Stefan




  reply	other threads:[~2022-07-29 14:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-28  6:33 Some Emacs outside Emacs Manuel Giraud
2022-07-28  7:53 ` Eli Zaretskii
2022-07-28  7:55 ` Andreas Schwab
2022-07-28  8:43   ` Manuel Giraud
2022-07-29 14:37     ` Stefan Monnier [this message]
2022-07-28  8:39 ` Po Lu

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