On 03/15/2011 12:34 PM, Karl Berry wrote:
> The GNU coding standards have had these two items since the beginning.
>
> First:
> Don't use the return value of @code{sprintf}. It returns the number of
> characters written on some systems, but not on all systems.
>
> I don't see this mentioned in the Gnulib entry for sprintf at
> http://www.gnu.org/software/gnulib/manual/html_node/sprintf.html
> Is it still relevant?
It is not relevant for sprintf. For snprintf, there are still buggy
implementations that don't always return the correct value mandated by
POSIX, but gnulib works around thos.
>
> Second:
> Be aware that @code{vfprintf} is not always available.
>
> Again, I don't see it mentioned in
> http://www.gnu.org/software/gnulib/manual/html_node/vfprintf.html
> though seemingly nearly every other system has some kind of problem.
> Is it still relevant?
Probably not any modern systems that lack vfprintf these days; however,
there are still a host of other modern portability problems to worry about.
--
Eric Blake ebl...@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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