On Sun, Jul 23, 2006 at 09:40:29PM +0200, Nicolas George wrote:
> > Always check return codes. gettimeofday() *can* fail (most likely,
> > tv1 and/or tv2 are bum pointers that don't point where you think).
>
> As a matter of fact, no, it can not, at least as long as its second argument
> is NULL:
>
> # RETURN VALUE
> #
> # The gettimeofday() function shall return 0 and no value shall be
> # reserved to indicate an error.
>
> (Single Unix version 3)
>
> If the provided buffer is invalid, the error will be reported through a
> signal (SIGSEGV or maybe SIGBUS if it is an alignment problem).
Well, on *Linux* it says:
ERRORS
EFAULT One of tv or tz pointed outside the accessible address space.
...
And other systems (*BSD, Darwin, HP-UX, IRIX) indicate
similar possibilities for EFAULT. It seems EFAULT appeared
in the BSD branch of Unix.
Yeti
--
Anonyms eat their boogers.
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