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From: Bruno Haible <bruno@clisp.org>
To: Eli Zaretskii <eliz@gnu.org>, Po Lu <luangruo@yahoo.com>,
	Paul Eggert <eggert@cs.ucla.edu>
Cc: angelo.g0@libero.it, emacs-devel@gnu.org
Subject: Re: Android port
Date: Sun, 06 Aug 2023 12:33:32 +0200	[thread overview]
Message-ID: <11660747.27k8W16iEi@nimes> (raw)
In-Reply-To: <d791cad9-e66b-e176-07d6-1c85d4c29f36@cs.ucla.edu>

Paul Eggert wrote:
> As I understand it the Android port uses Gnulib printf-posix and 
> vasprintf-posix modules only because Android printf lacks support for 
> "%td", "%jd" and "%ju".

No, that's not the case. Android *printf supports the 't', 'j', 'z' already
since 2009-03-04 (ca. Android 1.6).

I don't know what's the minimum supported Android version targetted by Po Lu
is, but for Android 4.3 you find the deficiencies listed in gnulib/m4/printf.m4:

dnl . = yes, # = no.
dnl
dnl                                  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
dnl   Android 4.3                    .  #  .  #  #  #  #  #  #  #  #  ?  .  #  .  #  .  #  .  .  .  #  .  .

Legend:
dnl 2 = checking whether printf supports size specifiers as in C23...
dnl 4 = checking whether printf supports infinite 'double' arguments...
dnl 5 = checking whether printf supports infinite 'long double' arguments...
dnl 6 = checking whether printf supports the 'a' and 'A' directives...
dnl 7 = checking whether printf supports the 'b' directive...
dnl 8 = checking whether printf supports the 'B' directive...
dnl 9 = checking whether printf supports the 'F' directive...
dnl 10 = checking whether printf supports the 'n' directive...
dnl 11 = checking whether printf supports the 'ls' directive...
dnl 12 = checking whether printf supports the 'lc' directive correctly...
dnl 14 = checking whether printf supports the grouping flag...
dnl 16 = checking whether printf supports the zero flag correctly...
dnl 18 = checking whether printf survives out-of-memory conditions...
dnl 22 = checking whether snprintf fully supports the 'n' directive...

> If this understanding is correct, how about if 
> we go through the printf formats in the Emacs C source code, and replace 
> all uses of "%jd" and "%ju" with "%"PRIdMAX and "%"PRIuMAX, and all uses 
> of "%td" with "%"pT"d" where pT is an Emacs invention defined like this:
> 
>   #ifdef __ANDROID__
>   # define pT "z"
>   #else
>   # define pT "t"
>   #endif

This workaround is not needed, since the problem is not there, not for
Android and not for other platforms either: Gnulib's documentation lists
the platforms

  @item
  This function does not support size specifiers as in C99 (@code{hh}, @code{ll},
  @code{j}, @code{t}, @code{z}) on some platforms:
  AIX 5.1, HP-UX 11.23, IRIX 6.5, Solaris 9, Cygwin 1.5.24, mingw, MSVC 14.

AIX 5.1, HP-UX 11.23, IRIX 6.5, Solaris 9, Cygwin 1.5.24 are long obsolete,
mingw is dealt with by Emacs differently, and MSVC is not supported by
Emacs (AFAIU).

Bruno






  parent reply	other threads:[~2023-08-06 10:33 UTC|newest]

Thread overview: 206+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-04  7:42 Android port Angelo Graziosi
2023-08-04  7:54 ` Eli Zaretskii
2023-08-04  9:45   ` Po Lu
2023-08-04 10:40     ` Eli Zaretskii
2023-08-04 12:12       ` Po Lu
2023-08-04 12:59         ` Eli Zaretskii
2023-08-04 13:23           ` Po Lu
2023-08-04 14:00             ` Eli Zaretskii
2023-08-05  0:48               ` Po Lu
2023-08-05  6:39                 ` Eli Zaretskii
2023-08-05  7:00                   ` Po Lu
2023-08-05  8:39                     ` Angelo Graziosi
2023-08-05  9:15                       ` Po Lu
2023-08-05 10:04                   ` Bruno Haible
2023-08-05 11:05                     ` Angelo Graziosi
2023-08-05 11:20                       ` Bruno Haible
2023-08-05 12:06                         ` Angelo Graziosi
2023-08-05 12:12                         ` Eli Zaretskii
2023-08-05 12:16                           ` Po Lu
2023-08-05 12:31                             ` Eli Zaretskii
2023-08-05 12:35                               ` Po Lu
2023-08-05 12:42                                 ` Po Lu
2023-08-05 12:25                           ` Bruno Haible
2023-08-05 12:42                             ` Eli Zaretskii
2023-08-05 12:47                               ` Bruno Haible
2023-08-05 13:00                                 ` Eli Zaretskii
2023-08-05 13:13                                   ` Po Lu
2023-08-05 15:26                                     ` Eli Zaretskii
2023-08-05 15:35                                       ` Eli Zaretskii
2023-08-05 23:37                                         ` Po Lu
2023-08-06  5:00                                           ` Eli Zaretskii
2023-08-06  5:07                                             ` Po Lu
2023-08-06  5:24                                               ` Eli Zaretskii
2023-08-06  8:48                                                 ` Paul Eggert
2023-08-06  8:58                                                   ` Eli Zaretskii
2023-08-06  9:24                                                   ` Po Lu
2023-08-06  9:35                                                     ` Eli Zaretskii
2023-08-06  9:41                                                       ` Po Lu
2023-08-06  9:44                                                         ` Eli Zaretskii
2023-08-06  9:54                                                           ` Po Lu
2023-08-06 10:00                                                             ` Eli Zaretskii
2023-08-06 10:10                                                               ` Po Lu
2023-08-06 10:40                                                                 ` Eli Zaretskii
2023-08-06 11:02                                                                   ` Bruno Haible
2023-08-06 11:56                                                                     ` Eli Zaretskii
2023-08-06 12:30                                                                       ` Po Lu
2023-08-06 12:42                                                                         ` Eli Zaretskii
2023-08-06 14:40                                                                       ` Bruno Haible
2023-08-06 15:09                                                                         ` Eli Zaretskii
2023-08-06 15:46                                                                           ` Bruno Haible
2023-08-06 17:44                                                                             ` Eli Zaretskii
2023-08-06 18:54                                                                               ` Bruno Haible
2023-08-06 19:14                                                                                 ` Eli Zaretskii
2023-08-06 13:05                                                                 ` Eli Zaretskii
2023-08-06 13:12                                                                   ` Bruno Haible
2023-08-06 13:18                                                                     ` Eli Zaretskii
2023-08-06 13:41                                                                       ` Po Lu
2023-08-06 15:09                                                                         ` Angelo Graziosi
2023-08-06 15:35                                                                           ` Angelo Graziosi
2023-08-06 15:44                                                                             ` Angelo Graziosi
2023-08-06 17:36                                                                               ` Eli Zaretskii
2023-08-06 18:11                                                                                 ` Angelo Graziosi
2023-08-06 18:19                                                                                   ` Eli Zaretskii
2023-08-06 18:34                                                                                     ` Angelo Graziosi
2023-08-06 18:53                                                                                       ` Eli Zaretskii
2023-08-06 20:26                                                                                         ` Angelo Graziosi
2023-08-07  2:26                                                                                           ` Eli Zaretskii
2023-08-07  7:20                                                                                             ` Angelo Graziosi
2023-08-07  7:22                                                                                               ` Po Lu
2023-08-07  8:19                                                                                                 ` Corwin Brust
2023-08-07  8:44                                                                                                   ` Po Lu
2023-08-07 11:11                                                                                                     ` Eli Zaretskii
2023-08-07 11:22                                                                                               ` Eli Zaretskii
2023-08-07 12:03                                                                                                 ` Angelo Graziosi
2023-08-07 15:48                                                                                                   ` Corwin Brust
2023-08-06 15:39                                                                           ` Eli Zaretskii
2023-08-06 15:48                                                                             ` Angelo Graziosi
2023-08-06 10:41                                                       ` Bruno Haible
2023-08-06 11:07                                                         ` Manuel Giraud via Emacs development discussions.
2023-08-06 11:39                                                           ` Eli Zaretskii
2023-08-06 12:47                                                           ` Po Lu
2023-08-06 16:21                                                             ` Paul Eggert
2023-08-06 12:16                                                         ` Po Lu
2023-08-06 12:23                                                           ` Eli Zaretskii
2023-08-06  9:39                                                     ` Arsen Arsenović
2023-08-06  9:43                                                       ` Eli Zaretskii
2023-08-06 10:33                                                   ` Bruno Haible [this message]
2023-08-06 12:20                                                     ` Po Lu
2023-08-06 12:26                                                       ` Eli Zaretskii
2023-08-06 12:33                                                         ` Po Lu
2023-08-06 12:43                                                         ` Bruno Haible
2023-08-06 12:51                                                           ` Po Lu
2023-08-06 13:13                                                             ` Eli Zaretskii
2023-08-06 13:07                                                           ` Bruno Haible
2023-08-06 18:10                                                             ` Paul Eggert
2023-08-06 18:15                                                               ` Eli Zaretskii
2023-08-06 17:44                                                       ` Paul Eggert
2023-08-06 17:51                                                         ` Eli Zaretskii
2023-08-06 23:55                                                           ` Po Lu
2023-08-07  0:49                                                             ` Po Lu
2023-08-07 11:19                                                               ` Eli Zaretskii
2023-08-07 12:03                                                                 ` Eli Zaretskii
2023-08-07 14:47                                                                   ` Eli Zaretskii
2023-08-04  9:44 ` Po Lu
2023-08-04 10:34   ` Eli Zaretskii
2023-08-04 12:02     ` Po Lu
2023-08-04 12:58       ` Angelo Graziosi
2023-08-04 13:17         ` Po Lu
2023-08-04 13:37           ` Corwin Brust
2023-08-05  3:24             ` Corwin Brust
2023-08-05  6:46               ` Eli Zaretskii
2023-08-05  7:11                 ` Corwin Brust
2023-08-04 13:48           ` Angelo Graziosi
2023-08-04 14:09           ` Eli Zaretskii
2023-08-05  1:04             ` Po Lu
2023-08-05  6:41               ` Eli Zaretskii
2023-08-04 10:53   ` Angelo Graziosi
     [not found] <87pm43a1jp.fsf.ref@yahoo.com>
2023-08-04  4:12 ` Po Lu
2023-08-04  6:27   ` Eli Zaretskii
2023-08-04  6:37     ` Po Lu
     [not found] <ygeednymfh3.fsf@PML-1006.intra>
2023-05-03  0:37 ` Po Lu
  -- strict thread matches above, loose matches on Subject: below --
2023-02-18  8:35 Angelo Graziosi
2023-02-18  8:42 ` Po Lu
2023-02-18 21:58   ` Angelo Graziosi
2023-02-19  2:13     ` Po Lu
2023-02-19  9:01       ` Angelo Graziosi
2023-02-19  9:24         ` Dov Grobgeld
2023-02-19 10:17           ` Michael Albinus
2023-02-19 10:55             ` Po Lu
2023-02-19 11:49               ` Michael Albinus
2023-02-19 10:55           ` Po Lu
2023-02-19 11:11             ` Angelo Graziosi
2023-02-19 11:24               ` Peter Oliver
2023-02-19 12:01                 ` Po Lu
2023-02-19 10:40         ` Arsen Arsenović
2023-02-19 10:53         ` Po Lu
2023-02-19 11:19           ` Angelo Graziosi
2023-02-19 11:59             ` Po Lu
2023-02-19 17:10               ` Angelo Graziosi
2023-02-20  2:39                 ` Po Lu
2023-02-20 17:05                   ` Angelo Graziosi
2023-02-21  2:28                     ` Po Lu
2023-02-21 17:39                       ` Angelo Graziosi
2023-02-21 17:51                         ` Jonathan Kenyon
2023-02-21 18:24                           ` Jonathan Kenyon
2023-02-21 18:48                             ` Simon Pugnet
2023-02-22  2:33                               ` Po Lu
2023-02-22  3:21                                 ` Jonathan Kenyon
2023-02-22  3:35                                   ` Po Lu
2023-02-22 14:11                                     ` Po Lu
2023-02-22 15:16                                       ` Simon Pugnet
2023-02-22 16:01                                       ` Angelo Graziosi
2023-02-23 14:47                                       ` Angelo Graziosi
2023-02-24  0:56                                         ` Po Lu
2023-02-24  1:01                                         ` Po Lu
2023-02-24 17:49                                           ` Angelo Graziosi
2023-02-22  2:31                           ` Po Lu
2023-02-22  2:30                         ` Po Lu
2023-02-22  8:04                           ` Angelo Graziosi
2023-02-22  8:31                           ` Angelo Graziosi
2023-03-05 22:03                         ` Angelo Graziosi
2023-03-05 23:57                           ` Po Lu
2023-03-07 15:47                             ` Angelo Graziosi
2023-03-07 23:58                               ` Po Lu
2023-03-08 16:12                                 ` Angelo Graziosi
2023-03-09  1:22                                   ` Po Lu
2023-03-09 16:38                                     ` Angelo Graziosi
2023-07-17  8:21                                     ` Angelo Graziosi
2023-07-17  8:30                                       ` Po Lu
2023-08-31  5:51                                         ` Jean Louis
2023-08-31 10:27                                           ` Angelo Graziosi
2023-07-17  8:40                                       ` Takesi Ayanokoji
2023-07-18  7:31                                         ` Angelo Graziosi
2023-07-18  7:41                                           ` Po Lu
2023-02-19 11:30       ` Peter Oliver
2023-02-18 18:12 ` Jean Louis
2023-02-19  8:31   ` Po Lu
     [not found] <87ttzkmrw1.fsf.ref@yahoo.com>
2023-02-17 11:51 ` Po Lu
2023-02-17 12:26   ` Eric S Fraga
2023-02-17 12:56   ` Arsen Arsenović
2023-02-17 13:05     ` Po Lu
2023-02-17 13:21       ` Arsen Arsenović
2023-02-19 11:17     ` Arsen Arsenović
2023-02-19 12:21       ` Po Lu
2023-02-19 14:16         ` Po Lu
2023-02-19 14:40           ` Arsen Arsenović
2023-02-19 15:13             ` Arsen Arsenović
2023-02-20  2:37               ` Po Lu
2023-02-20 15:33                 ` Arsen Arsenović
2023-02-20 15:46                   ` Po Lu
2023-02-20 16:05                     ` Arsen Arsenović
2023-02-19 14:42         ` Arsen Arsenović
2023-02-17 13:50   ` tomas
2023-02-21 13:41   ` Po Lu
2023-03-10 20:07   ` Etienne Prud'homme
2023-03-10 23:50     ` Po Lu
     [not found] <87bkmv6z36.fsf.ref@yahoo.com>
2023-01-19  2:24 ` gnulib fsusage Po Lu
2023-01-19  6:44   ` Eli Zaretskii
2023-01-19 10:11     ` Po Lu
2023-01-19 10:26       ` Eli Zaretskii
2023-01-19 11:59         ` Po Lu
2023-01-19 13:33           ` Eli Zaretskii
2023-01-19 13:40             ` Po Lu
2023-01-19 14:27               ` Android port (was: gnulib fsusage) Eli Zaretskii
2023-01-19 14:34                 ` Android port Po Lu
2023-01-19 14:56                   ` Eli Zaretskii
2023-01-20  0:18                     ` Po Lu
2023-01-20  7:09                       ` Eli Zaretskii
2023-01-20  9:39                         ` Po Lu
2023-01-25 10:48                         ` Po Lu
2023-01-26  8:59                           ` Eli Zaretskii
2023-01-20  6:47                 ` Android port (was: gnulib fsusage) Jean Louis
2023-01-20  7:19                   ` Eli Zaretskii
2023-01-28  7:50                     ` Konstantin Kharlamov
2023-01-28  8:49                       ` Eli Zaretskii
2023-01-28  9:06                         ` Konstantin Kharlamov
2023-01-28  9:21                           ` Eli Zaretskii
2023-01-28  9:31                             ` Konstantin Kharlamov
2023-01-28  9:59                               ` Android port Po Lu
2023-01-28  9:57                       ` Po Lu
2023-01-28 10:23                         ` Konstantin Kharlamov

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