From: Oliver Kiddle <okiddle@yahoo.co.uk>
To: zsh workers <zsh-workers@zsh.org>
Subject: PM_ flags (Re: mikachu/badarrays ...)
Date: Wed, 07 Jun 2017 12:53:46 +0200 [thread overview]
Message-ID: <16943.1496832826@thecus.kiddle.eu> (raw)
In-Reply-To: <170530224728.ZM25709@torch.brasslantern.com>
On 30 May, Bart wrote:
> It also appears we've run out of bits for PM_CACHELEN and PM_CHECKEN,
> the 19 and 20 bit positions are are now occupied by PM_DONTIMPORT_SUID
> and PM_SINGLE, though I suppose PM_KSHSTORED and PM_ZSHSTORED could do
> double duty as they won't apply to arrays and functions at once.
Should we perhaps change the flags field in struct param to be a 64-bit
value to make room for more flags? Can we portably use something like
uint64_t or is it not that simple?
In addition to more overloading of function/parameter related flags
there are also some mutually exclusive combinations. For example, only
one of the PM_TYPE flags can be set so 3 bits could be used in place
of 5 but it'd need the PM_TYPE mask adding in lots of places and only
gain us 2 bits. There's also the 32nd bit available but to reliably and
portably use that do we need to change flags to be an unsigned int?
Oliver
next prev parent reply other threads:[~2017-06-07 10:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-26 5:04 Valgrind testing, ideas Sebastian Gniazdowski
2017-05-26 5:50 ` Bart Schaefer
2017-05-26 7:57 ` Sebastian Gniazdowski
2017-05-26 10:56 ` Daniel Shahaf
2017-05-26 23:48 ` Bart Schaefer
2017-05-28 19:43 ` mikachu/badarrays (Re: Valgrind testing, ideas) Bart Schaefer
2017-05-29 13:21 ` Mikael Magnusson
2017-05-31 5:47 ` Bart Schaefer
2017-06-01 16:31 ` Sebastian Gniazdowski
2017-06-01 20:35 ` Bart Schaefer
2017-06-02 1:40 ` Sebastian Gniazdowski
2017-06-02 22:00 ` Bart Schaefer
2017-06-04 0:49 ` Bart Schaefer
2017-06-04 7:08 ` Sebastian Gniazdowski
2017-06-01 21:22 ` Mikael Magnusson
2017-06-01 21:38 ` Bart Schaefer
2017-06-07 10:53 ` Oliver Kiddle [this message]
2017-06-07 18:15 ` PM_ flags (Re: mikachu/badarrays ...) Mikael Magnusson
2017-06-07 22:18 ` Bart Schaefer
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