5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ctime.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function may overflow its internal buffer if an invalid year is passed.
18 The @code{ctime} function need not be reentrant, and consequently is
19 not required to be thread safe. Implementations of @code{ctime}
20 typically write the time stamp into static buffer. If two threads
21 call @code{ctime} at roughly the same time, you might end up with the
22 wrong date in one of the threads, or some undefined string. There is
23 a re-entrant interface @code{ctime_r}.
26 A more flexible function is @code{strftime}. However, note that it is