GNU bug report logs - #58524
pointer->procedure doesn't support foreign function use varargs.

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Package: guile;

Reported by: Zhu Zihao <all_but_last <at> 163.com>

Date: Fri, 14 Oct 2022 17:33:01 UTC

Severity: wishlist

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Report forwarded to bug-guile <at> gnu.org:
bug#58524; Package guile. (Fri, 14 Oct 2022 17:33:01 GMT) Full text and rfc822 format available.
Acknowledgement sent to Zhu Zihao <all_but_last <at> 163.com>:
New bug report received and forwarded. Copy sent to bug-guile <at> gnu.org. (Fri, 14 Oct 2022 17:33:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Zhu Zihao <all_but_last <at> 163.com>
To: bug-guile <at> gnu.org
Subject: pointer->procedure doesn't support foreign function use varargs.
Date: Sat, 15 Oct 2022 01:29:06 +0800

[Message part 1 (text/plain, inline)]
In current implementation of pointer->procedure, it use ffi_prep_cif.
So pointer->procedure just support foreign function with fixed amount of
arguments.

It's possible to support foreign function use varargs by using ffi_prep_cif_var. 
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Zihao

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Information forwarded to bug-guile <at> gnu.org:
bug#58524; Package guile. (Thu, 27 Oct 2022 16:44:02 GMT) Full text and rfc822 format available.

Message #8 received at 58524 <at> debbugs.gnu.org (full text, mbox):

From: Zhu Zihao <all_but_last <at> 163.com>
To: 58524 <at> debbugs.gnu.org
Subject: Re: bug#58524: Acknowledgement (pointer->procedure doesn't support
 foreign function use varargs.)
Date: Fri, 28 Oct 2022 00:42:42 +0800

[Message part 1 (text/plain, inline)]
Any one interested in it?
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Zihao

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Severity set to 'wishlist' from 'normal' Request was from Ludovic Courtès <ludo <at> gnu.org> to control <at> debbugs.gnu.org. (Sat, 05 Nov 2022 23:46:01 GMT) Full text and rfc822 format available.
Information forwarded to bug-guile <at> gnu.org:
bug#58524; Package guile. (Wed, 04 Jun 2025 22:50:02 GMT) Full text and rfc822 format available.

Message #13 received at 58524 <at> debbugs.gnu.org (full text, mbox):

From: Felix Lechner <felix.lechner <at> lease-up.com>
To: 58524 <at> debbugs.gnu.org
Cc: Zhu Zihao <all_but_last <at> 163.com>
Subject: Re: Bug#58524: Use ffi_prep_cif_var in pointer->procedure
Date: Wed, 04 Jun 2025 15:49:32 -0700

Hi Zhu Zihao,

> It's possible to support foreign function use varargs by using
> ffi_prep_cif_var.

I'd like to use it.  Did you get it working?  Thanks!

Kind regards,
Felix Lechner
This bug report was last modified 8 days ago.

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