On 11/28/2016 05:42 PM, Joseph Myers wrote:
On Sun, 27 Nov 2016, Martin Sebor wrote:
Finally, the patch also tightens up the constraint on the upper bound
of bounded functions like snprintf to be INT_MAX. The functions cannot
produce output in excess of INT_MAX + 1 bytes and some implementations
(e.g., Solaris) fail with EINVAL when the bound is INT_MAX or more.
This is the subject of PR 78520.
Note that failing with large bounds is questionable (there is an apparent
conflict between ISO C, where passing a large bound seems valid, and
POSIX, where large bounds require errors; see
<http://austingroupbugs.net/view.php?id=761>; I'm not sure if any liaison
issue for this ever got passed to WG14).
Thanks! That's useful background. Let me check with Nick to see
is he (as the POSIX/WG14 liaison) plans to submit it. I can also
write it up for the next WG14 meeting if we or the Austin Group
feel like WG14 should clarify or change things.
Martin
