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From: Peter Todd <pete@petertodd.org>
To: Luke Dashjr <luke@dashjr.org>
Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] CLTV opcode allocation; long-term plans?
Date: Tue, 12 May 2015 17:01:25 -0400	[thread overview]
Message-ID: <20150512210125.GA5902@muck> (raw)
In-Reply-To: <201505122038.28831.luke@dashjr.org>

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On Tue, May 12, 2015 at 08:38:27PM +0000, Luke Dashjr wrote:
> It should actually be straightforward to softfork RCLTV in as a negative CLTV.
> All nLockTime are >= any negative number, so a negative number makes CLTV a 
> no-op always. Therefore, it is clean to define negative numbers as relative 
> later. It's also somewhat obvious to developers, since negative numbers often 
> imply an offset (eg, negative list indices in Python).

Doing this makes handling the year 2038 problem a good deal more
complex.

The CLTV codebase specifically fails on negative arguments to avoid any
ambiguity or implementation differences here.

-- 
'peter'[:-1]@petertodd.org
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  reply	other threads:[~2015-05-12 21:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-04  5:07 [Bitcoin-development] CLTV opcode allocation; long-term plans? Peter Todd
2015-05-05  0:54 ` Btc Drak
2015-05-09  9:12   ` Peter Todd
2015-05-12 19:16     ` Jorge Timón
2015-05-12 19:23       ` Pieter Wuille
2015-05-12 19:30       ` Btc Drak
2015-05-12 20:38         ` Luke Dashjr
2015-05-12 21:01           ` Peter Todd [this message]
2015-05-13  0:38             ` Jorge Timón
2015-05-07  1:35 ` Rusty Russell
2015-05-07 17:17   ` Peter Todd

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