just for fun: pop quiz

[J. Landman Gay]

On 2/3/13 3:08 PM, Mark Wieder wrote:
> Jacque-
>
> Sunday, February 3, 2013, 12:40:43 PM, you wrote:
>
>> In the case of sockets and drivers it is possible to read without error
>> but not receive all the data due to communication issues. In that case
>> you'd want to know if the read had paused or had really finished.
>
> I was about to post the same, but then Bob would be on my case
> instead <g>, so I'm glad you beat me to it. I'd be happier if the read
> command had been written to return the number of characters read, in
> which case 0 or -1 would be an error, but we're stuck with what we've
> got.
>

If you're reading a serial port, you don't always know how many 
characters to expect. I'm not sure if that's still the same thing though.

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com