GNU bug report logs - #73068
printf: please implement POSIX:2024 argument reordering

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Pádraig Brady <P <at> draigBrady.com>, Collin Funk <collin.funk1 <at> gmail.com>, 73068 <at> debbugs.gnu.org
Cc: bruno <at> clisp.org
Subject: bug#73068: printf: please implement POSIX:2024 argument reordering
Date: Thu, 12 Sep 2024 12:33:07 -0700

On 2024-09-12 12:03, Pádraig Brady wrote:


> This is tricky enough, that we should be as restrictive as possible here,
> so I may resort to strspn(f, "0123456789") to parse instead.
> I'll think a bit about it.

The code's also assuming INT_MAX < INTMAX_MAX, which POSIX doesn't 
require. You could put in a static_assert to that effect, I suppose, to 
document the assumption.

More important, though, if you're not in the C locale all bets are off 
as far as what strtoimax will also parse.

When I ran into this problem with GNU tar, I ended by giving up on 
strtoimax and did my own little integer parser. It does exactly what I 
want and I don't have to fire up the strtoimax complexity+locale engine.

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