"Marko Kreen" <markokr@gmail.com> writes:
> FWIW, SUS says that vsnprintf should act like snprintf and snprintf:
I dunno where you're reading that, but it's certainly nowhere to be
found in the version that I read:
http://www.opengroup.org/onlinepubs/007908799/xsh/vfprintf.html
regards, tom lane