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From: Jeff King <peff@peff.net>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 2/3] fast-import: tree allocation cleanups
Date: Sun, 11 Mar 2007 11:51:38 -0400	[thread overview]
Message-ID: <20070311155138.GA7110@coredump.intra.peff.net> (raw)
In-Reply-To: <20070311032147.GA10781@spearce.org>

On Sat, Mar 10, 2007 at 10:21:47PM -0500, Shawn O. Pearce wrote:

> > +
> > +		t->entries[t->entry_count++] = e;
> This I wouldn't have bothered to do in this patch.  It is just
> unecessary code churning, as you turn around and change this again
> in the next patch.  I actually dropped these two hunks from this
> patch (but left the dang commit message comment in, whoops) and
> moved the first hunk to the next patch.

OK. There are actually two changes: moving the insertion until after
e->name is set up (which has no functionality impact) and changing the
manner of insertion. I split them up to try to make them more readable,
but clearly you figured out what I was going for.

> > +	name = to_atom(p, n);
> [...]
> > -	e->name = to_atom(p, (unsigned short)n);
> 
> You missed an unsigned short cast here.

Actually, I removed it intentionally (though clearly I should have
documented it). It's casting from an unsigned int to an unsigned short.
Such a cast is at best pointless (since the compiler performs the exact
same cast implicitly -- see C99 6.5.2.2, paragraph 7), and at worst
masks an error (e.g., if the type of n is changed).

Is there some subtle issue I'm missing here?

-Peff

  reply	other threads:[~2007-03-11 15:51 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <<20070310191515.GA3416@coredump.intra.peff.net>
2007-03-10 19:16 ` [PATCH 1/3] fast-import: grow tree storage more aggressively Jeff King
2007-03-10 19:21 ` [PATCH 2/3] fast-import: tree allocation cleanups Jeff King
2007-03-11  3:21   ` Shawn O. Pearce
2007-03-11 15:51     ` Jeff King [this message]
2007-03-11 15:59       ` Jeff King
2007-03-12 19:16       ` Shawn O. Pearce
2007-03-10 19:21 ` [PATCH 3/3] fast-import: improve efficiency of tree_content_set Jeff King
2007-03-10 19:23   ` Jeff King
2007-03-10 19:40     ` [PATCH] fast-import: use binary search in tree_content_remove Jeff King
2007-03-11  3:38       ` Shawn O. Pearce
2007-03-11 16:34         ` Jeff King
2007-03-11 16:54           ` Jeff King
2007-03-11 20:19             ` Shawn O. Pearce
2007-03-12 19:13           ` Shawn O. Pearce

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