Robert Millan wrote: > > - In the average case, you can get away with 1 strftime call instead of 2, > > if you preallocate a buffer on the stack: > > char buf[256]; > > len = strftime (buf, sizeof (buf), "%c", loctime) + 1; > > In the case where 256 bytes are not enough, the function will need > > 3 strftime calls instead of 1, but this case should be pretty rare > > (even in Chinese and GB18030 encoding, 64 characters should be enough > > for a date + time display). > > What about http://www.gnu.org/prep/standards/standards.html#Semantics ? > Avoiding arbitrary limits is a good thing IMO.
I'm not suggesting to introduce an arbitrary limit, but rather a threshold below which the implementation is more efficient that above the threshold. Take as example gnulib/lib/areadlink.c gnulib/lib/fprintf.c Bruno
