Re: [patch] checkpatch: putting the && or || on the wrong line

From: Joe Perches
Date: Tue Jan 04 2011 - 12:07:23 EST


On Tue, 2011-01-04 at 17:44 +0100, Samuel Thibault wrote:
> J. Bruce Fields, le Tue 04 Jan 2011 11:38:36 -0500, a Ãcrit :
> > On Tue, Jan 04, 2011 at 08:59:00AM +0300, Dan Carpenter wrote:
> > > This patch makes checkpatch.pl complain if you break up conditions in
> > > the wrong way.
> > > Wrong:
> > > if ((really_long_condition)
> > > && (second_condition)) { ...
> > > Right:
> > > if ((really_long_condition) &&
> > > (second_condition)) { ...
> > As far as I can tell, the convention in mathematical typesetting is to
> > put operators on the left, not the right. When the conditions are short
> > of there are more lines, that allows you to left-align on the repeated
> > operator.
> I personally find the left approach more readable.

As do I, but perhaps coding style in a project like this
shouldn't be personal but collective.

The trailing style outnumbers the leading style ~ 5:1.

$ grep -rP --include=*.[ch] "(\|\||&&)[ \t]*$" * | wc -l
39890
$ grep -rP --include=*.[ch] "^[ \t]*(\|\||&&)" * | wc -l
8244

If you take out drivers/staging, trailing is used ~ 6:1.

I think that high enough to be declared the preferred style.

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