Re: your mail

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On Mon, Apr 11, 2016 at 07:04:23PM +0000, miwilliams@xxxxxxxxxx wrote:

> From 7201fe08ede76e502211a781250c9a0b702a78b2 Mon Sep 17 00:00:00 2001
> From: Mike Williams <miwilliams@xxxxxxxxxx>
> Date: Mon, 11 Apr 2016 14:18:39 -0400
> Subject: [PATCH 1/1] wt-status: Remove '!!' from
> wt_status_collect_changed_cb

These bits (minus the initial "From ..." line) should go into your
actual email headers. As it is, your email has no subject line.

> The wt_status_collect_changed_cb function uses an extraneous double
> negation (!!) when determining whether or not a submodule has new
> commits.
> [...]
> -			d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
> +			d->new_submodule_commits = hashcmp(p->one->sha1, p->two->sha1);

It's not extraneous. hashcmp() returns 0 for equality, but an arbitrary
positive or negative value depending on how the two arguments differ.
The assigned "new_submodule_commits" is a bitfield of size 1. So the
"!!" is normalizing the value into "0" or "1".

-Peff
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