hamish at cloud.net.au
Wed Jul 18 13:39:20 UTC 2007
On Fri, Jul 13, 2007 at 04:49:29PM -0400, Roberto Riggio wrote:
> gettimeofday(&t1, (struct timezone *)0);
> t2.tv_sec = t1.tv_sec + delta;
> t2.tv_usec = t1.tv_usec + ((unsigned long)(delta*1000000) %
> printf("t2 set to: %s\n",tvtoa(endtime));
> The output of printf is always wrong. SOmetime it is a time before
> other times it is after.
1. You printf endtime, not t2. You didn't say how endtime was
2. (delta * 10000000) % 1000000 appears to be 0 always. Unless delta
happens to be a float; you didn't say.
3. (delta * 1000000) might overflow an unsigned long, which is only
32-bit. Perhaps you need to use a long long.
Hamish Moffatt VK3SB <hamish at debian.org> <hamish at cloud.net.au>
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