[EMAIL PROTECTED] (Ludovic Courtès) wrote: > Hi again, > > Jim Meyering <[EMAIL PROTECTED]> writes: > >> +/* Just like strftime, but with two more arguments: >> + POSIX requires that strftime use the local timezone information. >> + When __UTC is nonzero and tm->tm_zone is NULL or the empty string, >> + use UTC instead. Use __NS as the number of nanoseconds in the >> + %N directive. */ >> +size_t nstrftime (char *, size_t, char const *, struct tm const *, >> + int __utc, int __ns); > > Actually, I don't see `%N' documented in the glibc 2.7 manual. Is it > something newer?
%N is a GNU invention specific to nstrftime. It is the reason for the __ns argument: struct tm has no nanosecond information. > The effect of `brokentime->tm_zone' isn't specified either. Its existence is mentioned briefly in the mktime man page -- it's a BSD-ism, so you can probably find more info in BSD-specific documentation. > IIUC, glibc's `strftime ()' is equivalent to UTC == 0 and NS == 0, > right? Right. It's also equivalent for any other value of NS.
