From: Herve Codina <herve.codina@bootlin.com>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>,
devicetree-compiler@vger.kernel.org
Subject: Re: [PATCH] checks: Warn about overlapping reserved-memory ranges
Date: Wed, 30 Sep 2026 13:45:22 +0200 [thread overview]
Message-ID: <20260930134522.35dcd951@bootlin.com> (raw)
In-Reply-To: <arzaAE-rwQUNKtpK@gractus.seuss>
Hi,
On Wed, 30 Sep 2026 19:44:42 +1000
David Gibson <david@gibson.dropbear.id.au> wrote:
...
> >
> > Weird to have '[' and ')'.
>
> [x..y) is a standard notation in maths (it means x is included in the
> range, but y is not). But that doesn't mean it's generally known.
>
I was surprised by the notation and I've looked deeper about it.
Two different math notations exist for an interval notation [0]. The one
you mention (with square brackets and parenthesis) but also the one I know
about (square brackets only).
Knowing now about both notation, having "[x, y)" is not weird anymore. It
matches the "[x, y[" syntax I know about.
[0] https://en.wikipedia.org/wiki/Interval_(mathematics)#Including_or_excluding_endpoints
Hervé
next prev parent reply other threads:[~2026-09-30 11:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 17:50 [PATCH] checks: Warn about overlapping reserved-memory ranges Bjorn Andersson
2026-09-25 17:03 ` Herve Codina
2026-09-30 9:44 ` David Gibson
2026-09-30 11:45 ` Herve Codina [this message]
2026-10-01 1:31 ` David Gibson
2026-09-30 10:09 ` David Gibson
2026-10-01 16:13 ` Rob Herring
2026-10-07 4:58 ` David Gibson
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