On (2002/11/12 16:37), Nate Lawson wrote:
> I've found an interesting contradiction and was wondering what behavior
> sleep should have. It checks for a command line flag with getopt(3) and
> exits with usage() if it finds one. However, it then checks for a '-' or
> '+' sign. If negative, it behaves like "sleep 0" and exits
> immediately. This case can almost never be triggered since the
> getopt(3) will catch the minus sign, even if a digit follows it.
>
> Current behavior:
> sleep 0 = exits immediately
> sleep -1 = exits with usage()
> sleep -f = exits with usage()
> sleep " -1" = exits immediately and is the only way I know to trigger
> the negative case.
>
> What is the standard, desired behavior?
IEEE Std 1003.2-1992 says:
time A nonnegative decimal integer specifying the number of
seconds for which to suspend execution.
I think it's pretty clear that negative time arguments to sleep(1) are
not portable.
Ciao,
Sheldon.
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
