From: Mark H Weaver <mhw@netris.org>
To: ludo@gnu.org (Ludovic Courtès)
Cc: Chaos Eternal <chaoseternal@shlug.org>, 18592@debbugs.gnu.org
Subject: bug#18592: FFI should have portable access to ‘errno’
Date: Sat, 24 Jan 2015 03:22:15 -0500 [thread overview]
Message-ID: <87ppa4egg8.fsf@yeeloong.lan> (raw)
In-Reply-To: <87twzgeh3c.fsf@yeeloong.lan> (Mark H. Weaver's message of "Sat, 24 Jan 2015 03:08:23 -0500")
Mark H Weaver <mhw@netris.org> writes:
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Chaos Eternal <chaoseternal@shlug.org> skribis:
>>
>>> Proposal 2.
>>>
>>> let pointer->procedure check return_type, if it is a list:
>>> (func_return_type, 'errno)
>>> then return multiple values, as errno be second value.
>>
>> That’s my favorite because it’s both pragmatic and extensible (we can
>> also add support for h_errno, etc.)
>
> We can't do this, because although it's not documented in our manual, a
> list passed as a foreign type already has a meaning: it means a struct.
> See 'parse_ffi_type' in foreign.c.
Also see 'fill_ffi_type' in the same file.
Mark
next prev parent reply other threads:[~2015-01-24 8:22 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 20:17 bug#18592: FFI should have portable access to ‘errno’ Frank Terbeck
2014-11-11 15:03 ` Mark H Weaver
2014-11-11 20:02 ` Frank Terbeck
2014-11-13 17:12 ` Mark H Weaver
2014-11-22 17:53 ` Chaos Eternal
2015-01-19 20:22 ` Ludovic Courtès
2015-01-24 8:08 ` Mark H Weaver
2015-01-24 8:22 ` Mark H Weaver [this message]
2015-01-24 10:33 ` Ludovic Courtès
2015-12-31 12:33 ` Nala Ginrut
2016-01-04 12:04 ` Nala Ginrut
2016-01-04 16:12 ` Mark H Weaver
2016-01-04 19:14 ` Nala Ginrut
2016-01-05 2:24 ` Chaos Eternal
2016-01-05 7:49 ` tomas
2016-01-05 8:38 ` Nala Ginrut
2016-01-05 15:08 ` Mark H Weaver
2016-01-05 19:21 ` Nala Ginrut
2016-02-18 8:25 ` Nala Ginrut
2016-02-18 13:30 ` Mark H Weaver
2016-02-19 5:02 ` Nala Ginrut
2016-02-26 11:18 ` Nala Ginrut
2016-03-03 17:36 ` Mark H Weaver
2016-03-03 20:32 ` tomas
2016-03-13 17:06 ` Nala Ginrut
2016-06-20 19:55 ` Mark H Weaver
2016-01-05 15:40 ` Mark H Weaver
2016-01-04 16:21 ` Mark H Weaver
2015-01-25 20:59 ` guile
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