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Re: check for C99-compliant snprintf
From: |
Ben Pfaff |
Subject: |
Re: check for C99-compliant snprintf |
Date: |
Mon, 19 Feb 2007 20:57:02 -0800 |
User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) |
Bruno Haible <address@hidden> writes:
> Ben Pfaff wrote on Friday/Saturday:
>> The following patch attempts to remedy the situation.
>
> I cannot see the big picture in this change. You want a snprintf() whose
> return value is correct but which still doesn't support argument reordering
> on NetBSD and doesn't support %n on HP-UX? And an unchanged printf() and
> fprintf()?
I want a [v]snprintf that always null-terminates its output
string (if the size argument is greater than zero), so that I can
safely call [v]snprintf, then treat the result as a
null-terminated string without having to check the return value
at all. The pre-C99 [v]snprintfs don't necessarily do this, and
in particular Microsoft documents its _[v]snprintf to *not*
null-terminate if the output is too long.
> Please see the other mail ("Printf for gnulib") for a proposal
> how to get it all right.
Since there's momentum to fix all these problems at the same
time, I'll withdraw my proposal for a module, and work around the
problem for now.
--
Ben Pfaff
address@hidden
http://benpfaff.org
- Re: check for C99-compliant snprintf, (continued)
- Re: check for C99-compliant snprintf, Paul Eggert, 2007/02/16
- Re: check for C99-compliant snprintf, Ben Pfaff, 2007/02/16
- Re: check for C99-compliant snprintf, Paul Eggert, 2007/02/16
- Re: check for C99-compliant snprintf, Ben Pfaff, 2007/02/16
- Re: check for C99-compliant snprintf, Albert Chin, 2007/02/19
- Re: check for C99-compliant snprintf, Ben Pfaff, 2007/02/19
- Re: check for C99-compliant snprintf, Albert Chin, 2007/02/19
- Re: check for C99-compliant snprintf, Ben Pfaff, 2007/02/19
- Re: check for C99-compliant snprintf, Albert Chin, 2007/02/19
- Re: check for C99-compliant snprintf, Bruno Haible, 2007/02/19
- Re: check for C99-compliant snprintf,
Ben Pfaff <=
Re: check for C99-compliant snprintf, Eric Blake, 2007/02/19