From: Paul Eggert <eggert@cs.ucla.edu>
To: Philipp Stephani <p.stephani2@gmail.com>, emacs-devel@gnu.org
Cc: Philipp Stephani <phst@google.com>
Subject: Re: [PATCH 2/2] Add module functions to convert from and to big integers.
Date: Tue, 23 Apr 2019 07:51:33 -0700 [thread overview]
Message-ID: <102dc3dc-554c-a55e-ae7c-cc7357ee60f5@cs.ucla.edu> (raw)
In-Reply-To: <20190423131742.65814-2-phst@google.com>
On 4/23/19 6:17 AM, Philipp Stephani wrote:
> +@deftypefn Function bool extract_big_integer (emacs_env *@var{env}, emacs_value @var{arg}, int *@var{sign}, ptrdiff_t *@var{size}, unsigned char *@var{magnitude})y
This sounds reasonably inconvenient for authors of modules, plus it's a
pain to document. Why not just assume GMP instead? It's pretty unlikely
authors would use anything else for bignums. This should simplify the
code not only on the Emacs side but also on the module side; plus it
should improve performance by avoiding roundtrips through mpz_export and
mpz_import.
If a module author really wanted the array-of-unsigned-char
representation (which they probably wouldn't), you could supply a simple
conversion module to help them do that.
Similarly for make_big_integer.
next prev parent reply other threads:[~2019-04-23 14:51 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-23 13:17 [PATCH 1/2] Add conversions to and from struct timespec to module interface Philipp Stephani
2019-04-23 13:17 ` [PATCH 2/2] Add module functions to convert from and to big integers Philipp Stephani
2019-04-23 14:30 ` Eli Zaretskii
2019-04-23 14:51 ` Paul Eggert [this message]
2019-04-23 15:12 ` Philipp Stephani
2019-04-23 15:48 ` Paul Eggert
2019-04-23 15:54 ` Philipp Stephani
2019-11-02 19:17 ` Philipp Stephani
2019-11-03 19:38 ` Stefan Monnier
2019-11-13 18:46 ` Philipp Stephani
2019-11-17 18:38 ` [PATCH] Change module interface to no longer use GMP objects directly Philipp Stephani
2019-11-18 21:21 ` Paul Eggert
2019-11-19 21:12 ` Philipp Stephani
2019-11-19 21:54 ` Paul Eggert
2019-11-20 21:06 ` Philipp Stephani
2019-11-20 21:24 ` Paul Eggert
2019-11-20 21:30 ` Philipp Stephani
2019-11-21 1:12 ` Paul Eggert
2019-11-21 20:31 ` Philipp Stephani
2019-11-23 2:13 ` Paul Eggert
2019-11-23 20:08 ` Philipp Stephani
2019-11-23 23:10 ` Paul Eggert
2019-11-23 20:46 ` Stefan Monnier
2019-11-23 23:10 ` Paul Eggert
2019-11-24 9:28 ` Andreas Schwab
2019-11-25 21:03 ` Paul Eggert
2019-11-25 21:59 ` Philipp Stephani
2019-12-04 20:31 ` Philipp Stephani
2019-12-05 14:43 ` Eli Zaretskii
2019-12-08 20:28 ` Philipp Stephani
2019-12-09 3:26 ` Eli Zaretskii
2019-12-09 4:58 ` Paul Eggert
2019-12-09 13:22 ` Eli Zaretskii
2019-12-09 23:15 ` Philipp Stephani
2019-12-10 0:22 ` Paul Eggert
2019-12-10 13:15 ` Philipp Stephani
2019-12-10 15:57 ` Eli Zaretskii
2019-12-14 16:06 ` Philipp Stephani
2019-12-14 19:54 ` Paul Eggert
2019-12-09 0:35 ` Paul Eggert
2019-12-09 13:19 ` Eli Zaretskii
2019-04-23 15:16 ` [PATCH 1/2] Add conversions to and from struct timespec to module interface Paul Eggert
2019-04-23 21:32 ` Philipp Stephani
[not found] ` <20190423213218.35618-2-phst@google.com>
2019-04-23 21:43 ` [PATCH 2/2] Add module functions to convert from and to big integers Paul Eggert
2019-04-24 16:03 ` Eli Zaretskii
2019-04-24 16:37 ` Philipp Stephani
2019-04-24 16:51 ` Eli Zaretskii
2019-04-24 16:57 ` Philipp Stephani
2019-04-24 17:11 ` Eli Zaretskii
2019-04-24 17:15 ` Philipp Stephani
2019-04-24 17:23 ` Eli Zaretskii
2019-04-24 17:28 ` Philipp Stephani
2019-04-24 17:51 ` [PATCH] Unbreak build when building without GMP support Philipp Stephani
2019-04-24 18:41 ` Eli Zaretskii
2019-04-24 18:49 ` Philipp Stephani
2019-04-24 19:06 ` Eli Zaretskii
2019-04-24 19:19 ` Philipp Stephani
2019-04-24 19:30 ` Eli Zaretskii
2019-04-24 21:15 ` Philipp Stephani
2019-04-25 6:04 ` Eli Zaretskii
2019-04-25 6:39 ` Eli Zaretskii
2019-04-25 10:24 ` Philipp Stephani
2019-04-24 21:34 ` Philipp Stephani
2019-04-24 19:44 ` [PATCH 2/2] Add module functions to convert from and to big integers Stefan Monnier
2019-04-24 20:15 ` Paul Eggert
2019-04-24 20:57 ` Stefan Monnier
2019-04-24 21:17 ` Philipp Stephani
2019-04-24 23:32 ` Paul Eggert
2019-04-24 21:19 ` Philipp Stephani
2019-04-25 0:00 ` Paul Eggert
2019-04-25 5:33 ` Eli Zaretskii
2019-04-25 10:41 ` Philipp Stephani
2019-04-25 13:46 ` [PATCH 1/2] Require full GMP when building module support Philipp Stephani
2019-04-25 13:46 ` [PATCH 2/2] Check for __attribute__ ((cleanup)) during configuration Philipp Stephani
2019-04-25 21:18 ` Paul Eggert
2019-04-28 18:12 ` Philipp Stephani
2019-04-25 14:37 ` [PATCH 1/2] Require full GMP when building module support Eli Zaretskii
2019-04-25 15:06 ` Philipp Stephani
2019-04-25 16:14 ` Eli Zaretskii
2019-04-25 17:09 ` [PATCH] Require full GMP for big integer module functions Philipp Stephani
2019-04-25 21:00 ` Paul Eggert
2019-04-28 18:14 ` Philipp Stephani
2019-04-28 20:18 ` Paul Eggert
2019-04-28 17:10 ` [PATCH 1/2] Require full GMP when building module support Philipp Stephani
2019-04-24 7:21 ` [PATCH 1/2] Add conversions to and from struct timespec to module interface Eli Zaretskii
2019-04-24 11:03 ` Philipp Stephani
2019-04-24 11:44 ` Eli Zaretskii
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