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In-Reply-To: <CAPwsocGjqFkbWOoWSeN71dJGJqLgrpFcEq7U3z6pWohXhHL5_Q@mail.gmail.com>
Date: Tue, 3 Feb 2015 16:26:13 +0000
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To: Leigh <leight@gmail.com>
X-Mailer: Apple Mail (2.2070.6)
Subject: Re: [PHP-DEV] Zero-fill right shift.
From: ajf@ajf.me (Andrea Faulds)


> On 3 Feb 2015, at 16:22, Leigh <leight@gmail.com> wrote:
>=20
> On 3 February 2015 at 15:02, Andrea Faulds <ajf@ajf.me> wrote:
>>=20
>> Why would it be promoted?! The high bit is the 63rd bit. It fits =
within a long.
>=20
> because
>=20
> On 3 February 2015 at 16:08, Andrea Faulds <ajf@ajf.me> wrote:
>>=20
>> $ sapi/cli/php -r '$x =3D 1 << 63; debug_zval_dump($x);'
>> bigint(9223372036854775808) refcount(2)

Yeah, I see your point now, although I=E2=80=99d question *why* you need =
to mess with the high bit.

You can still do ^ -1 or something as usual, though.
--
Andrea Faulds
http://ajf.me/